./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-lit/sssc12_variant.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a 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_6d2f9db7-3159-4214-a673-5dd1197c27c1/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2f9db7-3159-4214-a673-5dd1197c27c1/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2f9db7-3159-4214-a673-5dd1197c27c1/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2f9db7-3159-4214-a673-5dd1197c27c1/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-lit/sssc12_variant.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2f9db7-3159-4214-a673-5dd1197c27c1/bin/utaipan-7li7fVZpFI/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2f9db7-3159-4214-a673-5dd1197c27c1/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7be74b3f1207f4387a275e1f4e0e57734d5f1b215282bd8d49efde8c6948d207 --- 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-5e519f3 [2022-11-03 02:44:02,636 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:44:02,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:44:02,686 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:44:02,686 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:44:02,694 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:44:02,697 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:44:02,700 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:44:02,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:44:02,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:44:02,709 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:44:02,711 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:44:02,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:44:02,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:44:02,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:44:02,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:44:02,719 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:44:02,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:44:02,721 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:44:02,730 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:44:02,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:44:02,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:44:02,735 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:44:02,736 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:44:02,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:44:02,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:44:02,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:44:02,747 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:44:02,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:44:02,748 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:44:02,749 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:44:02,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:44:02,752 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:44:02,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:44:02,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:44:02,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:44:02,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:44:02,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:44:02,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:44:02,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:44:02,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:44:02,759 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2f9db7-3159-4214-a673-5dd1197c27c1/bin/utaipan-7li7fVZpFI/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-03 02:44:02,796 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:44:02,796 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:44:02,796 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:44:02,796 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:44:02,797 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:44:02,797 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:44:02,797 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:44:02,798 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:44:02,798 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:44:02,801 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:44:02,802 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:44:02,802 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:44:02,802 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:44:02,803 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:44:02,803 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:44:02,803 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:44:02,803 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:44:02,803 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:44:02,804 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:44:02,804 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:44:02,804 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 02:44:02,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:44:02,805 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:44:02,807 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:44:02,807 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:44:02,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:44:02,807 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:44:02,807 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-03 02:44:02,808 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:44:02,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:44:02,808 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:44:02,808 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:44:02,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:44:02,809 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:44:02,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:44:02,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:44:02,809 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:44:02,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:44:02,810 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:44:02,810 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:44:02,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:44:02,810 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:44:02,810 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:44:02,811 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2f9db7-3159-4214-a673-5dd1197c27c1/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2f9db7-3159-4214-a673-5dd1197c27c1/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7be74b3f1207f4387a275e1f4e0e57734d5f1b215282bd8d49efde8c6948d207 [2022-11-03 02:44:03,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:44:03,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:44:03,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:44:03,133 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:44:03,134 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:44:03,135 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2f9db7-3159-4214-a673-5dd1197c27c1/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/pthread-lit/sssc12_variant.i [2022-11-03 02:44:03,214 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2f9db7-3159-4214-a673-5dd1197c27c1/bin/utaipan-7li7fVZpFI/data/9849838cd/996dee7a68fb4bd39a1889130230d855/FLAGdc4ed9774 [2022-11-03 02:44:03,807 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:44:03,807 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2f9db7-3159-4214-a673-5dd1197c27c1/sv-benchmarks/c/pthread-lit/sssc12_variant.i [2022-11-03 02:44:03,821 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2f9db7-3159-4214-a673-5dd1197c27c1/bin/utaipan-7li7fVZpFI/data/9849838cd/996dee7a68fb4bd39a1889130230d855/FLAGdc4ed9774 [2022-11-03 02:44:04,061 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2f9db7-3159-4214-a673-5dd1197c27c1/bin/utaipan-7li7fVZpFI/data/9849838cd/996dee7a68fb4bd39a1889130230d855 [2022-11-03 02:44:04,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:44:04,067 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:44:04,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:44:04,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:44:04,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:44:04,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:44:04" (1/1) ... [2022-11-03 02:44:04,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fc27212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:04, skipping insertion in model container [2022-11-03 02:44:04,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:44:04" (1/1) ... [2022-11-03 02:44:04,086 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:44:04,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:44:04,676 WARN L230 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_6d2f9db7-3159-4214-a673-5dd1197c27c1/sv-benchmarks/c/pthread-lit/sssc12_variant.i[46865,46878] [2022-11-03 02:44:04,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:44:04,698 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:44:04,731 WARN L230 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_6d2f9db7-3159-4214-a673-5dd1197c27c1/sv-benchmarks/c/pthread-lit/sssc12_variant.i[46865,46878] [2022-11-03 02:44:04,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:44:04,795 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:44:04,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:04 WrapperNode [2022-11-03 02:44:04,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:44:04,798 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:44:04,799 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:44:04,799 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:44:04,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:04" (1/1) ... [2022-11-03 02:44:04,840 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:04" (1/1) ... [2022-11-03 02:44:04,876 INFO L138 Inliner]: procedures = 275, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 93 [2022-11-03 02:44:04,877 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:44:04,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:44:04,879 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:44:04,879 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:44:04,887 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:04" (1/1) ... [2022-11-03 02:44:04,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:04" (1/1) ... [2022-11-03 02:44:04,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:04" (1/1) ... [2022-11-03 02:44:04,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:04" (1/1) ... [2022-11-03 02:44:04,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:04" (1/1) ... [2022-11-03 02:44:04,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:04" (1/1) ... [2022-11-03 02:44:04,923 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:04" (1/1) ... [2022-11-03 02:44:04,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:04" (1/1) ... [2022-11-03 02:44:04,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:44:04,932 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:44:04,935 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:44:04,935 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:44:04,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:04" (1/1) ... [2022-11-03 02:44:04,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:44:04,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2f9db7-3159-4214-a673-5dd1197c27c1/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:44:04,971 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2f9db7-3159-4214-a673-5dd1197c27c1/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:44:04,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2f9db7-3159-4214-a673-5dd1197c27c1/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:44:05,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-03 02:44:05,019 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2022-11-03 02:44:05,020 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2022-11-03 02:44:05,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:44:05,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:44:05,020 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-03 02:44:05,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:44:05,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:44:05,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:44:05,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:44:05,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:44:05,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:44:05,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:44:05,023 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 02:44:05,177 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:44:05,187 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:44:05,426 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:44:05,479 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:44:05,479 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 02:44:05,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:44:05 BoogieIcfgContainer [2022-11-03 02:44:05,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:44:05,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:44:05,485 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:44:05,488 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:44:05,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:44:04" (1/3) ... [2022-11-03 02:44:05,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c124a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:44:05, skipping insertion in model container [2022-11-03 02:44:05,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:04" (2/3) ... [2022-11-03 02:44:05,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c124a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:44:05, skipping insertion in model container [2022-11-03 02:44:05,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:44:05" (3/3) ... [2022-11-03 02:44:05,492 INFO L112 eAbstractionObserver]: Analyzing ICFG sssc12_variant.i [2022-11-03 02:44:05,500 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 02:44:05,511 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:44:05,511 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-03 02:44:05,512 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 02:44:05,596 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-03 02:44:05,641 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 02:44:05,656 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 99 transitions, 203 flow [2022-11-03 02:44:05,659 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 99 transitions, 203 flow [2022-11-03 02:44:05,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 99 transitions, 203 flow [2022-11-03 02:44:05,715 INFO L130 PetriNetUnfolder]: 7/111 cut-off events. [2022-11-03 02:44:05,715 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-03 02:44:05,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 111 events. 7/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 99 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 61. Up to 4 conditions per place. [2022-11-03 02:44:05,721 INFO L118 LiptonReduction]: Number of co-enabled transitions 1410 [2022-11-03 02:44:10,345 INFO L133 LiptonReduction]: Checked pairs total: 1425 [2022-11-03 02:44:10,346 INFO L135 LiptonReduction]: Total number of compositions: 115 [2022-11-03 02:44:10,360 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 19 places, 17 transitions, 39 flow [2022-11-03 02:44:10,380 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 57 states, 44 states have (on average 2.272727272727273) internal successors, (100), 56 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:44:10,403 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:44:10,409 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@57dae99a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:44:10,409 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-03 02:44:10,411 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 44 states have (on average 2.272727272727273) internal successors, (100), 56 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:44:10,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-03 02:44:10,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:44:10,417 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-03 02:44:10,417 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-03 02:44:10,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:44:10,423 INFO L85 PathProgramCache]: Analyzing trace with hash 14202388, now seen corresponding path program 1 times [2022-11-03 02:44:10,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:44:10,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620296530] [2022-11-03 02:44:10,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:44:10,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:44:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:44:10,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:44:10,688 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:44:10,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620296530] [2022-11-03 02:44:10,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620296530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:44:10,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:44:10,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-03 02:44:10,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976792022] [2022-11-03 02:44:10,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:44:10,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:44:10,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:44:10,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:44:10,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:44:10,719 INFO L87 Difference]: Start difference. First operand has 57 states, 44 states have (on average 2.272727272727273) internal successors, (100), 56 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:44:10,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:44:10,761 INFO L93 Difference]: Finished difference Result 31 states and 52 transitions. [2022-11-03 02:44:10,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:44:10,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-03 02:44:10,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:44:10,771 INFO L225 Difference]: With dead ends: 31 [2022-11-03 02:44:10,772 INFO L226 Difference]: Without dead ends: 31 [2022-11-03 02:44:10,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:44:10,776 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:44:10,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:44:10,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-03 02:44:10,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-11-03 02:44:10,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 28 states have (on average 1.8571428571428572) internal successors, (52), 30 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:44:10,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 52 transitions. [2022-11-03 02:44:10,809 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 52 transitions. Word has length 4 [2022-11-03 02:44:10,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:44:10,809 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 52 transitions. [2022-11-03 02:44:10,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:44:10,810 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 52 transitions. [2022-11-03 02:44:10,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-03 02:44:10,810 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:44:10,811 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-03 02:44:10,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:44:10,811 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-03 02:44:10,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:44:10,812 INFO L85 PathProgramCache]: Analyzing trace with hash 763534089, now seen corresponding path program 1 times [2022-11-03 02:44:10,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:44:10,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260462082] [2022-11-03 02:44:10,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:44:10,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:44:10,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:44:10,843 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 02:44:10,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:44:10,878 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 02:44:10,878 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 02:44:10,880 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2022-11-03 02:44:10,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2022-11-03 02:44:10,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2022-11-03 02:44:10,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2022-11-03 02:44:10,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2022-11-03 02:44:10,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2022-11-03 02:44:10,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2022-11-03 02:44:10,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2022-11-03 02:44:10,890 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2022-11-03 02:44:10,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2022-11-03 02:44:10,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2022-11-03 02:44:10,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2022-11-03 02:44:10,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2022-11-03 02:44:10,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:44:10,895 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-03 02:44:10,897 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-03 02:44:10,897 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-03 02:44:10,936 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-03 02:44:10,946 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 02:44:10,946 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 142 places, 147 transitions, 306 flow [2022-11-03 02:44:10,947 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 142 places, 147 transitions, 306 flow [2022-11-03 02:44:10,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 147 transitions, 306 flow [2022-11-03 02:44:11,021 INFO L130 PetriNetUnfolder]: 12/173 cut-off events. [2022-11-03 02:44:11,026 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-03 02:44:11,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 173 events. 12/173 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 342 event pairs, 0 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 112. Up to 6 conditions per place. [2022-11-03 02:44:11,035 INFO L118 LiptonReduction]: Number of co-enabled transitions 7332 [2022-11-03 02:44:14,869 INFO L133 LiptonReduction]: Checked pairs total: 21948 [2022-11-03 02:44:14,869 INFO L135 LiptonReduction]: Total number of compositions: 123 [2022-11-03 02:44:14,870 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 51 places, 50 transitions, 112 flow [2022-11-03 02:44:14,986 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2501 states, 2398 states have (on average 3.020433694745621) internal successors, (7243), 2500 states have internal predecessors, (7243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:44:14,987 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:44:14,989 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@57dae99a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:44:14,989 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2022-11-03 02:44:14,996 INFO L276 IsEmpty]: Start isEmpty. Operand has 2501 states, 2398 states have (on average 3.020433694745621) internal successors, (7243), 2500 states have internal predecessors, (7243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:44:14,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-03 02:44:14,997 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:44:14,997 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-03 02:44:14,997 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-03 02:44:14,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:44:14,998 INFO L85 PathProgramCache]: Analyzing trace with hash 743019318, now seen corresponding path program 1 times [2022-11-03 02:44:14,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:44:14,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234549497] [2022-11-03 02:44:14,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:44:14,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:44:15,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:44:15,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:44:15,055 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:44:15,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234549497] [2022-11-03 02:44:15,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234549497] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:44:15,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:44:15,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-03 02:44:15,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716276103] [2022-11-03 02:44:15,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:44:15,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:44:15,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:44:15,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:44:15,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:44:15,064 INFO L87 Difference]: Start difference. First operand has 2501 states, 2398 states have (on average 3.020433694745621) internal successors, (7243), 2500 states have internal predecessors, (7243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:44:15,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:44:15,216 INFO L93 Difference]: Finished difference Result 2530 states and 7239 transitions. [2022-11-03 02:44:15,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:44:15,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-03 02:44:15,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:44:15,239 INFO L225 Difference]: With dead ends: 2530 [2022-11-03 02:44:15,239 INFO L226 Difference]: Without dead ends: 2530 [2022-11-03 02:44:15,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:44:15,240 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 35 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:44:15,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 17 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:44:15,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2530 states. [2022-11-03 02:44:15,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2530 to 2145. [2022-11-03 02:44:15,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2145 states, 2112 states have (on average 2.9171401515151514) internal successors, (6161), 2144 states have internal predecessors, (6161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:44:15,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2145 states to 2145 states and 6161 transitions. [2022-11-03 02:44:15,402 INFO L78 Accepts]: Start accepts. Automaton has 2145 states and 6161 transitions. Word has length 5 [2022-11-03 02:44:15,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:44:15,402 INFO L495 AbstractCegarLoop]: Abstraction has 2145 states and 6161 transitions. [2022-11-03 02:44:15,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:44:15,403 INFO L276 IsEmpty]: Start isEmpty. Operand 2145 states and 6161 transitions. [2022-11-03 02:44:15,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-03 02:44:15,404 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:44:15,405 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:44:15,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:44:15,406 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-03 02:44:15,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:44:15,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1343150772, now seen corresponding path program 1 times [2022-11-03 02:44:15,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:44:15,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831565043] [2022-11-03 02:44:15,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:44:15,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:44:15,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:44:15,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:44:15,547 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:44:15,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831565043] [2022-11-03 02:44:15,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831565043] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:44:15,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:44:15,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:44:15,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006547567] [2022-11-03 02:44:15,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:44:15,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:44:15,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:44:15,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:44:15,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:44:15,550 INFO L87 Difference]: Start difference. First operand 2145 states and 6161 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:44:15,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:44:15,668 INFO L93 Difference]: Finished difference Result 2124 states and 6011 transitions. [2022-11-03 02:44:15,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:44:15,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-03 02:44:15,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:44:15,683 INFO L225 Difference]: With dead ends: 2124 [2022-11-03 02:44:15,683 INFO L226 Difference]: Without dead ends: 2124 [2022-11-03 02:44:15,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:44:15,689 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 26 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:44:15,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 55 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:44:15,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2124 states. [2022-11-03 02:44:15,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2124 to 2079. [2022-11-03 02:44:15,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2079 states, 2046 states have (on average 2.898338220918866) internal successors, (5930), 2078 states have internal predecessors, (5930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:44:15,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2079 states to 2079 states and 5930 transitions. [2022-11-03 02:44:15,762 INFO L78 Accepts]: Start accepts. Automaton has 2079 states and 5930 transitions. Word has length 11 [2022-11-03 02:44:15,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:44:15,763 INFO L495 AbstractCegarLoop]: Abstraction has 2079 states and 5930 transitions. [2022-11-03 02:44:15,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:44:15,763 INFO L276 IsEmpty]: Start isEmpty. Operand 2079 states and 5930 transitions. [2022-11-03 02:44:15,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-03 02:44:15,765 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:44:15,765 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-03 02:44:15,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:44:15,770 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-03 02:44:15,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:44:15,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1894144487, now seen corresponding path program 1 times [2022-11-03 02:44:15,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:44:15,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854783487] [2022-11-03 02:44:15,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:44:15,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:44:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:44:15,817 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 02:44:15,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:44:15,835 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 02:44:15,835 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 02:44:15,836 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2022-11-03 02:44:15,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 19 remaining) [2022-11-03 02:44:15,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 19 remaining) [2022-11-03 02:44:15,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 19 remaining) [2022-11-03 02:44:15,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 19 remaining) [2022-11-03 02:44:15,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 19 remaining) [2022-11-03 02:44:15,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 19 remaining) [2022-11-03 02:44:15,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 19 remaining) [2022-11-03 02:44:15,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 19 remaining) [2022-11-03 02:44:15,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 19 remaining) [2022-11-03 02:44:15,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 19 remaining) [2022-11-03 02:44:15,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 19 remaining) [2022-11-03 02:44:15,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 19 remaining) [2022-11-03 02:44:15,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 19 remaining) [2022-11-03 02:44:15,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 19 remaining) [2022-11-03 02:44:15,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 19 remaining) [2022-11-03 02:44:15,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 19 remaining) [2022-11-03 02:44:15,840 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 19 remaining) [2022-11-03 02:44:15,840 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 19 remaining) [2022-11-03 02:44:15,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:44:15,841 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-03 02:44:15,841 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-03 02:44:15,841 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-03 02:44:15,863 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-03 02:44:15,865 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 02:44:15,865 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 188 places, 195 transitions, 411 flow [2022-11-03 02:44:15,866 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 188 places, 195 transitions, 411 flow [2022-11-03 02:44:15,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 188 places, 195 transitions, 411 flow [2022-11-03 02:44:15,908 INFO L130 PetriNetUnfolder]: 17/235 cut-off events. [2022-11-03 02:44:15,909 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-03 02:44:15,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 235 events. 17/235 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 625 event pairs, 0 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 177. Up to 8 conditions per place. [2022-11-03 02:44:15,922 INFO L118 LiptonReduction]: Number of co-enabled transitions 17766 [2022-11-03 02:44:20,600 INFO L133 LiptonReduction]: Checked pairs total: 58309 [2022-11-03 02:44:20,600 INFO L135 LiptonReduction]: Total number of compositions: 161 [2022-11-03 02:44:20,601 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 73 places, 72 transitions, 165 flow [2022-11-03 02:44:22,939 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 50100 states, 49361 states have (on average 4.003140130872551) internal successors, (197599), 50099 states have internal predecessors, (197599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:44:22,957 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:44:22,961 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@57dae99a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:44:22,964 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-03 02:44:23,070 INFO L276 IsEmpty]: Start isEmpty. Operand has 50100 states, 49361 states have (on average 4.003140130872551) internal successors, (197599), 50099 states have internal predecessors, (197599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:44:23,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-03 02:44:23,072 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:44:23,072 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-03 02:44:23,073 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-11-03 02:44:23,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:44:23,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1131797499, now seen corresponding path program 1 times [2022-11-03 02:44:23,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:44:23,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437234854] [2022-11-03 02:44:23,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:44:23,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:44:23,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:44:23,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:44:23,140 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:44:23,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437234854] [2022-11-03 02:44:23,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437234854] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:44:23,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:44:23,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-03 02:44:23,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740062746] [2022-11-03 02:44:23,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:44:23,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:44:23,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:44:23,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:44:23,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:44:23,233 INFO L87 Difference]: Start difference. First operand has 50100 states, 49361 states have (on average 4.003140130872551) internal successors, (197599), 50099 states have internal predecessors, (197599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:44:25,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:44:25,400 INFO L93 Difference]: Finished difference Result 61338 states and 237969 transitions. [2022-11-03 02:44:25,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:44:25,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-03 02:44:25,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:44:26,189 INFO L225 Difference]: With dead ends: 61338 [2022-11-03 02:44:26,189 INFO L226 Difference]: Without dead ends: 61338 [2022-11-03 02:44:26,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:44:26,191 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 58 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:44:26,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 17 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:44:26,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61338 states. [2022-11-03 02:44:29,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61338 to 52483. [2022-11-03 02:44:29,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52483 states, 52196 states have (on average 3.9808606023450075) internal successors, (207785), 52482 states have internal predecessors, (207785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:44:30,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52483 states to 52483 states and 207785 transitions. [2022-11-03 02:44:30,099 INFO L78 Accepts]: Start accepts. Automaton has 52483 states and 207785 transitions. Word has length 5 [2022-11-03 02:44:30,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:44:30,099 INFO L495 AbstractCegarLoop]: Abstraction has 52483 states and 207785 transitions. [2022-11-03 02:44:30,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:44:30,100 INFO L276 IsEmpty]: Start isEmpty. Operand 52483 states and 207785 transitions. [2022-11-03 02:44:30,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-03 02:44:30,100 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:44:30,100 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-03 02:44:30,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:44:30,101 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-11-03 02:44:30,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:44:30,101 INFO L85 PathProgramCache]: Analyzing trace with hash 725984994, now seen corresponding path program 1 times [2022-11-03 02:44:30,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:44:30,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945057194] [2022-11-03 02:44:30,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:44:30,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:44:30,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:44:30,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:44:30,165 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:44:30,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945057194] [2022-11-03 02:44:30,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945057194] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:44:30,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:44:30,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-03 02:44:30,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060029118] [2022-11-03 02:44:30,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:44:30,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:44:30,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:44:30,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:44:30,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:44:30,167 INFO L87 Difference]: Start difference. First operand 52483 states and 207785 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:44:31,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:44:31,215 INFO L93 Difference]: Finished difference Result 52168 states and 202529 transitions. [2022-11-03 02:44:31,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:44:31,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-03 02:44:31,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:44:31,864 INFO L225 Difference]: With dead ends: 52168 [2022-11-03 02:44:31,866 INFO L226 Difference]: Without dead ends: 52168 [2022-11-03 02:44:31,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:44:31,867 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 51 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:44:31,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 23 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:44:31,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52168 states. [2022-11-03 02:44:33,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52168 to 47093. [2022-11-03 02:44:33,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47093 states, 46886 states have (on average 3.93964083095167) internal successors, (184714), 47092 states have internal predecessors, (184714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:44:34,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47093 states to 47093 states and 184714 transitions. [2022-11-03 02:44:34,155 INFO L78 Accepts]: Start accepts. Automaton has 47093 states and 184714 transitions. Word has length 6 [2022-11-03 02:44:34,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:44:34,160 INFO L495 AbstractCegarLoop]: Abstraction has 47093 states and 184714 transitions. [2022-11-03 02:44:34,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:44:34,160 INFO L276 IsEmpty]: Start isEmpty. Operand 47093 states and 184714 transitions. [2022-11-03 02:44:34,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-03 02:44:34,161 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:44:34,161 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:44:34,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:44:34,166 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-11-03 02:44:34,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:44:34,167 INFO L85 PathProgramCache]: Analyzing trace with hash 467063796, now seen corresponding path program 1 times [2022-11-03 02:44:34,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:44:34,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259310327] [2022-11-03 02:44:34,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:44:34,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:44:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:44:34,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:44:34,222 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:44:34,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259310327] [2022-11-03 02:44:34,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259310327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:44:34,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:44:34,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:44:34,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401887069] [2022-11-03 02:44:34,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:44:34,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:44:34,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:44:34,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:44:34,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:44:34,225 INFO L87 Difference]: Start difference. First operand 47093 states and 184714 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:44:34,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:44:34,575 INFO L93 Difference]: Finished difference Result 46930 states and 181669 transitions. [2022-11-03 02:44:34,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:44:34,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-03 02:44:34,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:44:35,404 INFO L225 Difference]: With dead ends: 46930 [2022-11-03 02:44:35,404 INFO L226 Difference]: Without dead ends: 46930 [2022-11-03 02:44:35,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:44:35,405 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 52 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:44:35,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 91 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:44:35,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46930 states. [2022-11-03 02:44:36,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46930 to 45727. [2022-11-03 02:44:36,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45727 states, 45520 states have (on average 3.915927065026362) internal successors, (178253), 45726 states have internal predecessors, (178253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:44:36,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45727 states to 45727 states and 178253 transitions. [2022-11-03 02:44:36,727 INFO L78 Accepts]: Start accepts. Automaton has 45727 states and 178253 transitions. Word has length 11 [2022-11-03 02:44:36,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:44:36,728 INFO L495 AbstractCegarLoop]: Abstraction has 45727 states and 178253 transitions. [2022-11-03 02:44:36,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:44:36,728 INFO L276 IsEmpty]: Start isEmpty. Operand 45727 states and 178253 transitions. [2022-11-03 02:44:36,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 02:44:36,730 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:44:36,731 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:44:36,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:44:36,731 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-11-03 02:44:36,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:44:36,732 INFO L85 PathProgramCache]: Analyzing trace with hash -951061584, now seen corresponding path program 1 times [2022-11-03 02:44:36,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:44:36,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110790396] [2022-11-03 02:44:36,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:44:36,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:44:36,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:44:36,794 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:44:36,794 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:44:36,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110790396] [2022-11-03 02:44:36,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110790396] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:44:36,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:44:36,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:44:36,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741970061] [2022-11-03 02:44:36,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:44:36,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:44:36,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:44:36,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:44:36,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:44:36,798 INFO L87 Difference]: Start difference. First operand 45727 states and 178253 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:44:37,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:44:37,764 INFO L93 Difference]: Finished difference Result 46474 states and 178892 transitions. [2022-11-03 02:44:37,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:44:37,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-03 02:44:37,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:44:37,994 INFO L225 Difference]: With dead ends: 46474 [2022-11-03 02:44:37,994 INFO L226 Difference]: Without dead ends: 46474 [2022-11-03 02:44:37,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:44:37,995 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 51 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:44:37,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 95 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:44:38,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46474 states. [2022-11-03 02:44:39,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46474 to 45181. [2022-11-03 02:44:39,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45181 states, 44974 states have (on average 3.896117756926224) internal successors, (175224), 45180 states have internal predecessors, (175224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:44:39,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45181 states to 45181 states and 175224 transitions. [2022-11-03 02:44:39,666 INFO L78 Accepts]: Start accepts. Automaton has 45181 states and 175224 transitions. Word has length 15 [2022-11-03 02:44:39,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:44:39,667 INFO L495 AbstractCegarLoop]: Abstraction has 45181 states and 175224 transitions. [2022-11-03 02:44:39,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:44:39,668 INFO L276 IsEmpty]: Start isEmpty. Operand 45181 states and 175224 transitions. [2022-11-03 02:44:39,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 02:44:39,669 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:44:39,669 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2022-11-03 02:44:39,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 02:44:39,670 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-11-03 02:44:39,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:44:39,670 INFO L85 PathProgramCache]: Analyzing trace with hash 671830533, now seen corresponding path program 1 times [2022-11-03 02:44:39,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:44:39,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533354214] [2022-11-03 02:44:39,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:44:39,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:44:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:44:39,689 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 02:44:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:44:39,702 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 02:44:39,702 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 02:44:39,702 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2022-11-03 02:44:39,703 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 25 remaining) [2022-11-03 02:44:39,703 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 25 remaining) [2022-11-03 02:44:39,703 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 25 remaining) [2022-11-03 02:44:39,703 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 25 remaining) [2022-11-03 02:44:39,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 25 remaining) [2022-11-03 02:44:39,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 25 remaining) [2022-11-03 02:44:39,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 25 remaining) [2022-11-03 02:44:39,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 25 remaining) [2022-11-03 02:44:39,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 25 remaining) [2022-11-03 02:44:39,705 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 25 remaining) [2022-11-03 02:44:39,705 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 25 remaining) [2022-11-03 02:44:39,705 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 25 remaining) [2022-11-03 02:44:39,705 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 25 remaining) [2022-11-03 02:44:39,705 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 25 remaining) [2022-11-03 02:44:39,706 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 25 remaining) [2022-11-03 02:44:39,706 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 25 remaining) [2022-11-03 02:44:39,706 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 25 remaining) [2022-11-03 02:44:39,706 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 25 remaining) [2022-11-03 02:44:39,706 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 25 remaining) [2022-11-03 02:44:39,707 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 25 remaining) [2022-11-03 02:44:39,707 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 25 remaining) [2022-11-03 02:44:39,707 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 25 remaining) [2022-11-03 02:44:39,707 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 25 remaining) [2022-11-03 02:44:39,707 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 25 remaining) [2022-11-03 02:44:39,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 02:44:39,708 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-03 02:44:39,708 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-03 02:44:39,709 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-11-03 02:44:39,733 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-03 02:44:39,736 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 02:44:39,736 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 234 places, 243 transitions, 518 flow [2022-11-03 02:44:39,737 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 234 places, 243 transitions, 518 flow [2022-11-03 02:44:39,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 234 places, 243 transitions, 518 flow [2022-11-03 02:44:39,790 INFO L130 PetriNetUnfolder]: 22/297 cut-off events. [2022-11-03 02:44:39,790 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-11-03 02:44:39,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 297 events. 22/297 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 918 event pairs, 0 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 243. Up to 10 conditions per place. [2022-11-03 02:44:39,814 INFO L118 LiptonReduction]: Number of co-enabled transitions 32712 [2022-11-03 02:44:45,535 INFO L133 LiptonReduction]: Checked pairs total: 111115 [2022-11-03 02:44:45,535 INFO L135 LiptonReduction]: Total number of compositions: 193 [2022-11-03 02:44:45,536 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 95 places, 94 transitions, 220 flow