./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-poker-hand-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f 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_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/chl-poker-hand-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0 --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 088f6c2624c9ef470b1e5d5938ff0e2c2948b61c2ac98da6e426747245a7aaad --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 19:57:53,638 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 19:57:53,641 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 19:57:53,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 19:57:53,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 19:57:53,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 19:57:53,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 19:57:53,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 19:57:53,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 19:57:53,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 19:57:53,706 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 19:57:53,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 19:57:53,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 19:57:53,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 19:57:53,711 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 19:57:53,712 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 19:57:53,714 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 19:57:53,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 19:57:53,717 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 19:57:53,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 19:57:53,722 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 19:57:53,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 19:57:53,729 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 19:57:53,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 19:57:53,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 19:57:53,750 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 19:57:53,750 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 19:57:53,752 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 19:57:53,752 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 19:57:53,754 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 19:57:53,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 19:57:53,755 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 19:57:53,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 19:57:53,758 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 19:57:53,761 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 19:57:53,763 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 19:57:53,765 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 19:57:53,766 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 19:57:53,767 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 19:57:53,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 19:57:53,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 19:57:53,771 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-16 19:57:53,828 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 19:57:53,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 19:57:53,829 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 19:57:53,829 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 19:57:53,831 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 19:57:53,831 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 19:57:53,831 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 19:57:53,832 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 19:57:53,832 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 19:57:53,832 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 19:57:53,834 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 19:57:53,834 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 19:57:53,834 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 19:57:53,835 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 19:57:53,835 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 19:57:53,835 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 19:57:53,836 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 19:57:53,836 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 19:57:53,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 19:57:53,837 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 19:57:53,837 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 19:57:53,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 19:57:53,838 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 19:57:53,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 19:57:53,840 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 19:57:53,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 19:57:53,841 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 19:57:53,841 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 19:57:53,842 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 19:57:53,842 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 19:57:53,842 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 19:57:53,843 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 19:57:53,843 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 19:57:53,843 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 19:57:53,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:57:53,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 19:57:53,844 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 19:57:53,845 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 19:57:53,845 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 19:57:53,845 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 19:57:53,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 19:57:53,847 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 19:57:53,847 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 19:57:53,847 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_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 088f6c2624c9ef470b1e5d5938ff0e2c2948b61c2ac98da6e426747245a7aaad [2022-11-16 19:57:54,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 19:57:54,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 19:57:54,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 19:57:54,289 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 19:57:54,290 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 19:57:54,292 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/weaver/chl-poker-hand-subst.wvr.c [2022-11-16 19:57:54,399 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/data/e0ed3930e/e1f2ee21358243ae9ae07043a0e20bff/FLAGf1af1ff6b [2022-11-16 19:57:55,150 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 19:57:55,150 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/sv-benchmarks/c/weaver/chl-poker-hand-subst.wvr.c [2022-11-16 19:57:55,174 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/data/e0ed3930e/e1f2ee21358243ae9ae07043a0e20bff/FLAGf1af1ff6b [2022-11-16 19:57:55,390 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/data/e0ed3930e/e1f2ee21358243ae9ae07043a0e20bff [2022-11-16 19:57:55,392 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 19:57:55,394 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 19:57:55,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 19:57:55,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 19:57:55,405 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 19:57:55,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:57:55" (1/1) ... [2022-11-16 19:57:55,411 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43dade01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:57:55, skipping insertion in model container [2022-11-16 19:57:55,412 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:57:55" (1/1) ... [2022-11-16 19:57:55,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 19:57:55,474 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 19:57:55,990 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/sv-benchmarks/c/weaver/chl-poker-hand-subst.wvr.c[19262,19275] [2022-11-16 19:57:55,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:57:56,006 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 19:57:56,123 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/sv-benchmarks/c/weaver/chl-poker-hand-subst.wvr.c[19262,19275] [2022-11-16 19:57:56,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:57:56,153 INFO L208 MainTranslator]: Completed translation [2022-11-16 19:57:56,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:57:56 WrapperNode [2022-11-16 19:57:56,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 19:57:56,160 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 19:57:56,161 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 19:57:56,161 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 19:57:56,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:57:56" (1/1) ... [2022-11-16 19:57:56,208 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:57:56" (1/1) ... [2022-11-16 19:57:56,377 INFO L138 Inliner]: procedures = 26, calls = 454, calls flagged for inlining = 100, calls inlined = 144, statements flattened = 2512 [2022-11-16 19:57:56,380 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 19:57:56,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 19:57:56,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 19:57:56,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 19:57:56,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:57:56" (1/1) ... [2022-11-16 19:57:56,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:57:56" (1/1) ... [2022-11-16 19:57:56,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:57:56" (1/1) ... [2022-11-16 19:57:56,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:57:56" (1/1) ... [2022-11-16 19:57:56,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:57:56" (1/1) ... [2022-11-16 19:57:56,571 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:57:56" (1/1) ... [2022-11-16 19:57:56,578 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:57:56" (1/1) ... [2022-11-16 19:57:56,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:57:56" (1/1) ... [2022-11-16 19:57:56,601 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 19:57:56,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 19:57:56,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 19:57:56,603 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 19:57:56,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:57:56" (1/1) ... [2022-11-16 19:57:56,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:57:56,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:57:56,640 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 19:57:56,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 19:57:56,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 19:57:56,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 19:57:56,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 19:57:56,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 19:57:56,712 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 19:57:56,712 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 19:57:56,713 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 19:57:56,713 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 19:57:56,713 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 19:57:56,713 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 19:57:56,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 19:57:56,714 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 19:57:56,714 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 19:57:56,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 19:57:56,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 19:57:56,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 19:57:56,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 19:57:56,719 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 19:57:57,072 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 19:57:57,075 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 19:58:00,064 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 19:58:05,492 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 19:58:05,492 INFO L300 CfgBuilder]: Removed 18 assume(true) statements. [2022-11-16 19:58:05,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:58:05 BoogieIcfgContainer [2022-11-16 19:58:05,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 19:58:05,499 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 19:58:05,499 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 19:58:05,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 19:58:05,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:57:55" (1/3) ... [2022-11-16 19:58:05,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65ede2f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:58:05, skipping insertion in model container [2022-11-16 19:58:05,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:57:56" (2/3) ... [2022-11-16 19:58:05,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65ede2f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:58:05, skipping insertion in model container [2022-11-16 19:58:05,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:58:05" (3/3) ... [2022-11-16 19:58:05,508 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-subst.wvr.c [2022-11-16 19:58:05,519 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 19:58:05,531 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 19:58:05,531 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 102 error locations. [2022-11-16 19:58:05,532 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 19:58:07,384 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-16 19:58:07,437 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-16 19:58:07,452 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 796 places, 865 transitions, 1754 flow [2022-11-16 19:58:07,469 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 796 places, 865 transitions, 1754 flow [2022-11-16 19:58:07,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 796 places, 865 transitions, 1754 flow [2022-11-16 19:58:08,271 INFO L130 PetriNetUnfolder]: 79/862 cut-off events. [2022-11-16 19:58:08,271 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 19:58:08,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 875 conditions, 862 events. 79/862 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1505 event pairs, 0 based on Foata normal form. 0/681 useless extension candidates. Maximal degree in co-relation 762. Up to 7 conditions per place. [2022-11-16 19:58:08,310 INFO L119 LiptonReduction]: Number of co-enabled transitions 37230 [2022-11-16 20:03:25,261 INFO L134 LiptonReduction]: Checked pairs total: 46860 [2022-11-16 20:03:25,262 INFO L136 LiptonReduction]: Total number of compositions: 1091 [2022-11-16 20:03:25,274 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 149 places, 163 transitions, 350 flow [2022-11-16 20:03:27,482 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 57752 states, 38046 states have (on average 5.703122535877622) internal successors, (216981), 57751 states have internal predecessors, (216981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:03:27,509 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 20:03:27,524 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;@2f325bee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 20:03:27,525 INFO L358 AbstractCegarLoop]: Starting to check reachability of 183 error locations. [2022-11-16 20:03:27,606 INFO L276 IsEmpty]: Start isEmpty. Operand has 57752 states, 38046 states have (on average 5.703122535877622) internal successors, (216981), 57751 states have internal predecessors, (216981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:03:27,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-16 20:03:27,617 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:03:27,617 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-16 20:03:27,618 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 180 more)] === [2022-11-16 20:03:27,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:03:27,632 INFO L85 PathProgramCache]: Analyzing trace with hash 312882, now seen corresponding path program 1 times [2022-11-16 20:03:27,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:03:27,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462878704] [2022-11-16 20:03:27,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:03:27,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:03:27,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:03:28,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:03:28,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:03:28,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462878704] [2022-11-16 20:03:28,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462878704] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:03:28,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:03:28,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 20:03:28,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333221948] [2022-11-16 20:03:28,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:03:28,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:03:28,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:03:28,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:03:28,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:03:28,309 INFO L87 Difference]: Start difference. First operand has 57752 states, 38046 states have (on average 5.703122535877622) internal successors, (216981), 57751 states have internal predecessors, (216981), 0 states have call successors, (0), 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 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:03:30,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:03:30,300 INFO L93 Difference]: Finished difference Result 40779 states and 157475 transitions. [2022-11-16 20:03:30,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:03:30,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 2 [2022-11-16 20:03:30,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:03:30,822 INFO L225 Difference]: With dead ends: 40779 [2022-11-16 20:03:30,822 INFO L226 Difference]: Without dead ends: 40779 [2022-11-16 20:03:30,824 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 [2022-11-16 20:03:30,829 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 83 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:03:30,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 0 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 20:03:30,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40779 states. [2022-11-16 20:03:32,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40779 to 20414. [2022-11-16 20:03:32,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20414 states, 14559 states have (on average 5.4106738100144245) internal successors, (78774), 20413 states have internal predecessors, (78774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:03:32,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20414 states to 20414 states and 78774 transitions. [2022-11-16 20:03:32,466 INFO L78 Accepts]: Start accepts. Automaton has 20414 states and 78774 transitions. Word has length 2 [2022-11-16 20:03:32,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:03:32,467 INFO L495 AbstractCegarLoop]: Abstraction has 20414 states and 78774 transitions. [2022-11-16 20:03:32,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:03:32,474 INFO L276 IsEmpty]: Start isEmpty. Operand 20414 states and 78774 transitions. [2022-11-16 20:03:32,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-16 20:03:32,477 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:03:32,477 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-16 20:03:32,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 20:03:32,479 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 180 more)] === [2022-11-16 20:03:32,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:03:32,481 INFO L85 PathProgramCache]: Analyzing trace with hash 9714066, now seen corresponding path program 1 times [2022-11-16 20:03:32,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:03:32,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853775629] [2022-11-16 20:03:32,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:03:32,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:03:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:03:32,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:03:32,761 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:03:32,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853775629] [2022-11-16 20:03:32,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853775629] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:03:32,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420039741] [2022-11-16 20:03:32,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:03:32,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:03:32,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:03:32,770 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:03:32,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 20:03:34,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:03:34,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 20:03:34,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:03:34,961 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:03:34,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:03:35,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:03:35,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420039741] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:03:35,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1412422718] [2022-11-16 20:03:35,018 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Construction of path programs is not yet supported for concurrent programs at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:243) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-16 20:03:35,019 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 20:03:35,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2022-11-16 20:03:35,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557910079] [2022-11-16 20:03:35,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 20:03:35,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 20:03:35,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:03:35,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 20:03:35,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-16 20:03:35,023 INFO L87 Difference]: Start difference. First operand 20414 states and 78774 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:03:39,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:03:39,830 INFO L93 Difference]: Finished difference Result 101910 states and 393686 transitions. [2022-11-16 20:03:39,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 20:03:39,831 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 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 3 [2022-11-16 20:03:39,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:03:41,721 INFO L225 Difference]: With dead ends: 101910 [2022-11-16 20:03:41,721 INFO L226 Difference]: Without dead ends: 101910 [2022-11-16 20:03:41,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-16 20:03:41,726 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 451 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-16 20:03:41,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 0 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-16 20:03:41,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101910 states. [2022-11-16 20:03:44,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101910 to 20450. [2022-11-16 20:03:44,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20450 states, 14595 states have (on average 5.4047276464542655) internal successors, (78882), 20449 states have internal predecessors, (78882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:03:44,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20450 states to 20450 states and 78882 transitions. [2022-11-16 20:03:44,589 INFO L78 Accepts]: Start accepts. Automaton has 20450 states and 78882 transitions. Word has length 3 [2022-11-16 20:03:44,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:03:44,589 INFO L495 AbstractCegarLoop]: Abstraction has 20450 states and 78882 transitions. [2022-11-16 20:03:44,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:03:44,590 INFO L276 IsEmpty]: Start isEmpty. Operand 20450 states and 78882 transitions. [2022-11-16 20:03:44,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-16 20:03:44,591 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:03:44,591 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-16 20:03:44,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 20:03:44,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:03:44,818 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 180 more)] === [2022-11-16 20:03:44,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:03:44,819 INFO L85 PathProgramCache]: Analyzing trace with hash 9714068, now seen corresponding path program 1 times [2022-11-16 20:03:44,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:03:44,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111297658] [2022-11-16 20:03:44,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:03:44,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:03:44,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:03:44,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:03:44,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:03:44,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111297658] [2022-11-16 20:03:44,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111297658] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:03:44,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:03:44,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 20:03:44,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285671079] [2022-11-16 20:03:44,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:03:44,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:03:44,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:03:44,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:03:44,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:03:44,988 INFO L87 Difference]: Start difference. First operand 20450 states and 78882 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:03:45,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:03:45,733 INFO L93 Difference]: Finished difference Result 20438 states and 78834 transitions. [2022-11-16 20:03:45,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:03:45,739 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2022-11-16 20:03:45,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:03:46,006 INFO L225 Difference]: With dead ends: 20438 [2022-11-16 20:03:46,006 INFO L226 Difference]: Without dead ends: 20438 [2022-11-16 20:03:46,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:03:46,008 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 95 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 20:03:46,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 0 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 20:03:46,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20438 states. [2022-11-16 20:03:46,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20438 to 20438. [2022-11-16 20:03:46,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20438 states, 14595 states have (on average 5.401438848920863) internal successors, (78834), 20437 states have internal predecessors, (78834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:03:47,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20438 states to 20438 states and 78834 transitions. [2022-11-16 20:03:47,135 INFO L78 Accepts]: Start accepts. Automaton has 20438 states and 78834 transitions. Word has length 3 [2022-11-16 20:03:47,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:03:47,136 INFO L495 AbstractCegarLoop]: Abstraction has 20438 states and 78834 transitions. [2022-11-16 20:03:47,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:03:47,136 INFO L276 IsEmpty]: Start isEmpty. Operand 20438 states and 78834 transitions. [2022-11-16 20:03:47,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-16 20:03:47,137 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:03:47,137 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1] [2022-11-16 20:03:47,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 20:03:47,138 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 180 more)] === [2022-11-16 20:03:47,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:03:47,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1643552306, now seen corresponding path program 2 times [2022-11-16 20:03:47,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:03:47,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485276467] [2022-11-16 20:03:47,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:03:47,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:03:47,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:03:47,362 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:03:47,363 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:03:47,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485276467] [2022-11-16 20:03:47,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485276467] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:03:47,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195610625] [2022-11-16 20:03:47,364 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 20:03:47,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:03:47,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:03:47,366 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:03:47,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 20:03:49,134 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 20:03:49,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 20:03:49,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 20:03:49,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:03:49,157 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-16 20:03:49,157 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 20:03:49,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195610625] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:03:49,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 20:03:49,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2022-11-16 20:03:49,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681237592] [2022-11-16 20:03:49,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:03:49,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:03:49,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:03:49,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:03:49,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-16 20:03:49,171 INFO L87 Difference]: Start difference. First operand 20438 states and 78834 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:03:49,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:03:49,925 INFO L93 Difference]: Finished difference Result 20429 states and 78825 transitions. [2022-11-16 20:03:49,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:03:49,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 [2022-11-16 20:03:49,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:03:50,026 INFO L225 Difference]: With dead ends: 20429 [2022-11-16 20:03:50,027 INFO L226 Difference]: Without dead ends: 20429 [2022-11-16 20:03:50,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-16 20:03:50,028 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 91 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 20:03:50,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 0 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 20:03:50,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20429 states. [2022-11-16 20:03:50,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20429 to 20393. [2022-11-16 20:03:50,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20393 states, 14559 states have (on average 5.409231403255718) internal successors, (78753), 20392 states have internal predecessors, (78753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:03:50,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20393 states to 20393 states and 78753 transitions. [2022-11-16 20:03:50,766 INFO L78 Accepts]: Start accepts. Automaton has 20393 states and 78753 transitions. Word has length 6 [2022-11-16 20:03:50,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:03:50,766 INFO L495 AbstractCegarLoop]: Abstraction has 20393 states and 78753 transitions. [2022-11-16 20:03:50,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:03:50,766 INFO L276 IsEmpty]: Start isEmpty. Operand 20393 states and 78753 transitions. [2022-11-16 20:03:50,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 20:03:50,767 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:03:50,767 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1] [2022-11-16 20:03:50,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-16 20:03:50,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:03:50,968 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 180 more)] === [2022-11-16 20:03:50,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:03:50,969 INFO L85 PathProgramCache]: Analyzing trace with hash 334093694, now seen corresponding path program 1 times [2022-11-16 20:03:50,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:03:50,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299206371] [2022-11-16 20:03:50,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:03:50,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:03:51,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:03:51,152 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:03:51,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:03:51,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299206371] [2022-11-16 20:03:51,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299206371] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:03:51,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810890167] [2022-11-16 20:03:51,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:03:51,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:03:51,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:03:51,155 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:03:51,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 20:03:53,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:03:53,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 20:03:53,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:03:53,219 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-16 20:03:53,220 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 20:03:53,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810890167] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:03:53,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 20:03:53,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2022-11-16 20:03:53,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102274283] [2022-11-16 20:03:53,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:03:53,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:03:53,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:03:53,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:03:53,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2022-11-16 20:03:53,222 INFO L87 Difference]: Start difference. First operand 20393 states and 78753 transitions. Second operand has 3 states, 3 states have (on average 2.0) 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) [2022-11-16 20:03:53,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:03:53,895 INFO L93 Difference]: Finished difference Result 20396 states and 78753 transitions. [2022-11-16 20:03:53,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:03:53,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) 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 9 [2022-11-16 20:03:53,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:03:54,025 INFO L225 Difference]: With dead ends: 20396 [2022-11-16 20:03:54,025 INFO L226 Difference]: Without dead ends: 20396 [2022-11-16 20:03:54,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2022-11-16 20:03:54,027 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 20:03:54,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 20:03:54,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20396 states. [2022-11-16 20:03:54,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20396 to 20396. [2022-11-16 20:03:54,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20396 states, 14562 states have (on average 5.408117016893284) internal successors, (78753), 20395 states have internal predecessors, (78753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:03:55,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20396 states to 20396 states and 78753 transitions. [2022-11-16 20:03:55,031 INFO L78 Accepts]: Start accepts. Automaton has 20396 states and 78753 transitions. Word has length 9 [2022-11-16 20:03:55,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:03:55,031 INFO L495 AbstractCegarLoop]: Abstraction has 20396 states and 78753 transitions. [2022-11-16 20:03:55,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) 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) [2022-11-16 20:03:55,032 INFO L276 IsEmpty]: Start isEmpty. Operand 20396 states and 78753 transitions. [2022-11-16 20:03:55,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 20:03:55,032 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:03:55,032 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:03:55,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 20:03:55,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:03:55,243 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 180 more)] === [2022-11-16 20:03:55,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:03:55,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1114639278, now seen corresponding path program 1 times [2022-11-16 20:03:55,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:03:55,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811115535] [2022-11-16 20:03:55,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:03:55,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:03:55,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:03:55,434 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 20:03:55,434 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:03:55,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811115535] [2022-11-16 20:03:55,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811115535] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:03:55,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906654441] [2022-11-16 20:03:55,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:03:55,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:03:55,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:03:55,437 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:03:55,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 20:03:57,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:03:57,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 20:03:57,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:03:57,324 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-16 20:03:57,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:03:57,359 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-16 20:03:57,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906654441] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:03:57,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1612672370] [2022-11-16 20:03:57,361 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Construction of path programs is not yet supported for concurrent programs at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:243) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-16 20:03:57,364 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 20:03:57,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 3] total 11 [2022-11-16 20:03:57,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147608168] [2022-11-16 20:03:57,365 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 20:03:57,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 20:03:57,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:03:57,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 20:03:57,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2022-11-16 20:03:57,367 INFO L87 Difference]: Start difference. First operand 20396 states and 78753 transitions. Second operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:04:00,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:04:00,824 INFO L93 Difference]: Finished difference Result 81536 states and 314916 transitions. [2022-11-16 20:04:00,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 20:04:00,825 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-16 20:04:00,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:04:01,516 INFO L225 Difference]: With dead ends: 81536 [2022-11-16 20:04:01,516 INFO L226 Difference]: Without dead ends: 81536 [2022-11-16 20:04:01,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=143, Unknown=0, NotChecked=0, Total=240 [2022-11-16 20:04:01,518 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 498 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 245 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-16 20:04:01,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 0 Invalid, 964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [245 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-16 20:04:01,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81536 states. [2022-11-16 20:04:03,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81536 to 20420. [2022-11-16 20:04:03,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20420 states, 14586 states have (on average 5.400452488687783) internal successors, (78771), 20419 states have internal predecessors, (78771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:04:03,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20420 states to 20420 states and 78771 transitions. [2022-11-16 20:04:03,641 INFO L78 Accepts]: Start accepts. Automaton has 20420 states and 78771 transitions. Word has length 12 [2022-11-16 20:04:03,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:04:03,641 INFO L495 AbstractCegarLoop]: Abstraction has 20420 states and 78771 transitions. [2022-11-16 20:04:03,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:04:03,642 INFO L276 IsEmpty]: Start isEmpty. Operand 20420 states and 78771 transitions. [2022-11-16 20:04:03,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 20:04:03,643 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:04:03,643 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1] [2022-11-16 20:04:03,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 20:04:03,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:04:03,844 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 180 more)] === [2022-11-16 20:04:03,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:04:03,845 INFO L85 PathProgramCache]: Analyzing trace with hash -967309422, now seen corresponding path program 2 times [2022-11-16 20:04:03,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:04:03,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488144279] [2022-11-16 20:04:03,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:04:03,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:04:03,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:04:04,285 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-16 20:04:04,286 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:04:04,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488144279] [2022-11-16 20:04:04,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488144279] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:04:04,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899976228] [2022-11-16 20:04:04,287 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 20:04:04,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:04:04,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:04:04,291 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:04:04,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 20:04:06,482 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 20:04:06,482 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 20:04:06,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 20:04:06,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:04:06,509 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-16 20:04:06,509 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 20:04:06,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899976228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:04:06,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 20:04:06,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2022-11-16 20:04:06,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836147495] [2022-11-16 20:04:06,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:04:06,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:04:06,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:04:06,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:04:06,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-16 20:04:06,513 INFO L87 Difference]: Start difference. First operand 20420 states and 78771 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:04:07,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:04:07,091 INFO L93 Difference]: Finished difference Result 20417 states and 78768 transitions. [2022-11-16 20:04:07,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:04:07,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 22 [2022-11-16 20:04:07,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:04:07,247 INFO L225 Difference]: With dead ends: 20417 [2022-11-16 20:04:07,247 INFO L226 Difference]: Without dead ends: 20417 [2022-11-16 20:04:07,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-16 20:04:07,249 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 94 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 20:04:07,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 0 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 20:04:07,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20417 states. [2022-11-16 20:04:07,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20417 to 20414. [2022-11-16 20:04:07,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20414 states, 14583 states have (on average 5.400946307344168) internal successors, (78762), 20413 states have internal predecessors, (78762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:04:08,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20414 states to 20414 states and 78762 transitions. [2022-11-16 20:04:08,344 INFO L78 Accepts]: Start accepts. Automaton has 20414 states and 78762 transitions. Word has length 22 [2022-11-16 20:04:08,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:04:08,344 INFO L495 AbstractCegarLoop]: Abstraction has 20414 states and 78762 transitions. [2022-11-16 20:04:08,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:04:08,345 INFO L276 IsEmpty]: Start isEmpty. Operand 20414 states and 78762 transitions. [2022-11-16 20:04:08,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-16 20:04:08,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:04:08,346 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:04:08,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 20:04:08,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:04:08,547 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err23ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 180 more)] === [2022-11-16 20:04:08,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:04:08,548 INFO L85 PathProgramCache]: Analyzing trace with hash 151342183, now seen corresponding path program 1 times [2022-11-16 20:04:08,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:04:08,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335805646] [2022-11-16 20:04:08,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:04:08,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:04:08,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:04:09,184 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-11-16 20:04:09,184 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:04:09,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335805646] [2022-11-16 20:04:09,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335805646] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:04:09,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948795646] [2022-11-16 20:04:09,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:04:09,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:04:09,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:04:09,191 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:04:09,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 20:04:11,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:04:11,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 961 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 20:04:11,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:04:11,493 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-11-16 20:04:11,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:04:11,602 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-11-16 20:04:11,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948795646] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:04:11,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1841866324] [2022-11-16 20:04:11,604 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-16 20:04:11,605 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 20:04:11,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 17 [2022-11-16 20:04:11,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811617734] [2022-11-16 20:04:11,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 20:04:11,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 20:04:11,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:04:11,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 20:04:11,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=156, Unknown=0, NotChecked=0, Total=272 [2022-11-16 20:04:11,608 INFO L87 Difference]: Start difference. First operand 20414 states and 78762 transitions. Second operand has 17 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 17 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) [2022-11-16 20:04:12,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:04:12,936 INFO L93 Difference]: Finished difference Result 20447 states and 78795 transitions. [2022-11-16 20:04:12,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 20:04:12,937 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 17 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) Word has length 51 [2022-11-16 20:04:12,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:04:13,042 INFO L225 Difference]: With dead ends: 20447 [2022-11-16 20:04:13,043 INFO L226 Difference]: Without dead ends: 20447 [2022-11-16 20:04:13,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=156, Unknown=0, NotChecked=0, Total=272 [2022-11-16 20:04:13,044 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 20:04:13,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 20:04:13,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20447 states. [2022-11-16 20:04:13,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20447 to 20447. [2022-11-16 20:04:13,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20447 states, 14616 states have (on average 5.391009852216749) internal successors, (78795), 20446 states have internal predecessors, (78795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:04:13,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20447 states to 20447 states and 78795 transitions. [2022-11-16 20:04:13,635 INFO L78 Accepts]: Start accepts. Automaton has 20447 states and 78795 transitions. Word has length 51 [2022-11-16 20:04:13,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:04:13,635 INFO L495 AbstractCegarLoop]: Abstraction has 20447 states and 78795 transitions. [2022-11-16 20:04:13,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 17 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) [2022-11-16 20:04:13,635 INFO L276 IsEmpty]: Start isEmpty. Operand 20447 states and 78795 transitions. [2022-11-16 20:04:13,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-16 20:04:13,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:04:13,638 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:04:13,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-16 20:04:13,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-16 20:04:13,843 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err23ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 180 more)] === [2022-11-16 20:04:13,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:04:13,843 INFO L85 PathProgramCache]: Analyzing trace with hash 831452407, now seen corresponding path program 2 times [2022-11-16 20:04:13,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:04:13,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874011082] [2022-11-16 20:04:13,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:04:13,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:04:14,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:04:15,581 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2022-11-16 20:04:15,581 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:04:15,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874011082] [2022-11-16 20:04:15,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874011082] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:04:15,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673601041] [2022-11-16 20:04:15,582 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 20:04:15,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:04:15,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:04:15,584 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:04:15,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 20:04:19,431 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-16 20:04:19,432 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 20:04:19,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-16 20:04:19,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:04:19,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 20:04:19,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 20:04:19,934 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-16 20:04:19,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-16 20:04:20,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-16 20:04:20,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-16 20:04:20,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-16 20:04:20,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-16 20:04:20,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:04:20,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-16 20:04:20,291 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2022-11-16 20:04:20,292 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:04:20,412 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_942 (Array Int Int)) (v_ArrVal_941 (Array Int Int))) (< 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_941) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_942) c_~last_index_of_7~0.base) (+ 12 c_~last_index_of_7~0.offset)) 4294967296))) is different from false [2022-11-16 20:04:20,560 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:04:20,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 30 [2022-11-16 20:04:20,581 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:04:20,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 77 [2022-11-16 20:04:20,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 54 [2022-11-16 20:04:20,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2022-11-16 20:04:20,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-16 20:04:21,135 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 262 trivial. 4 not checked. [2022-11-16 20:04:21,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673601041] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:04:21,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [157376779] [2022-11-16 20:04:21,138 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-16 20:04:21,139 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 20:04:21,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 6] total 26 [2022-11-16 20:04:21,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060846199] [2022-11-16 20:04:21,140 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 20:04:21,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-16 20:04:21,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:04:21,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-16 20:04:21,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=469, Unknown=5, NotChecked=46, Total=650 [2022-11-16 20:04:21,143 INFO L87 Difference]: Start difference. First operand 20447 states and 78795 transitions. Second operand has 26 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 26 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:04:23,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:04:23,778 INFO L93 Difference]: Finished difference Result 24404 states and 89342 transitions. [2022-11-16 20:04:23,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-16 20:04:23,779 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 26 states have internal predecessors, (94), 0 states have call successors, (0), 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 84 [2022-11-16 20:04:23,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:04:23,909 INFO L225 Difference]: With dead ends: 24404 [2022-11-16 20:04:23,909 INFO L226 Difference]: Without dead ends: 24404 [2022-11-16 20:04:23,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=370, Invalid=1269, Unknown=5, NotChecked=78, Total=1722 [2022-11-16 20:04:23,910 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 136 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1017 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1017 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 20:04:23,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 0 Invalid, 2146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1017 Invalid, 0 Unknown, 1017 Unchecked, 1.7s Time] [2022-11-16 20:04:23,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24404 states. [2022-11-16 20:04:24,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24404 to 20533. [2022-11-16 20:04:24,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20533 states, 14702 states have (on average 5.391783430825738) internal successors, (79270), 20532 states have internal predecessors, (79270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:04:24,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20533 states to 20533 states and 79270 transitions. [2022-11-16 20:04:24,531 INFO L78 Accepts]: Start accepts. Automaton has 20533 states and 79270 transitions. Word has length 84 [2022-11-16 20:04:24,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:04:24,532 INFO L495 AbstractCegarLoop]: Abstraction has 20533 states and 79270 transitions. [2022-11-16 20:04:24,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 26 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:04:24,533 INFO L276 IsEmpty]: Start isEmpty. Operand 20533 states and 79270 transitions. [2022-11-16 20:04:24,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-16 20:04:24,534 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:04:24,535 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:04:24,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 20:04:24,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-16 20:04:24,736 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err25ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 180 more)] === [2022-11-16 20:04:24,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:04:24,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1438720949, now seen corresponding path program 1 times [2022-11-16 20:04:24,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:04:24,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068647334] [2022-11-16 20:04:24,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:04:24,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:04:24,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:04:26,337 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2022-11-16 20:04:26,337 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:04:26,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068647334] [2022-11-16 20:04:26,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068647334] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:04:26,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038662150] [2022-11-16 20:04:26,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:04:26,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:04:26,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:04:26,340 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:04:26,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-16 20:04:28,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:04:28,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 1326 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-16 20:04:28,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:04:28,948 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2022-11-16 20:04:28,948 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:04:29,325 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2022-11-16 20:04:29,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038662150] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:04:29,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [776751143] [2022-11-16 20:04:29,327 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-16 20:04:29,328 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 20:04:29,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 38 [2022-11-16 20:04:29,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074067273] [2022-11-16 20:04:29,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 20:04:29,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-16 20:04:29,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:04:29,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-16 20:04:29,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=527, Invalid=879, Unknown=0, NotChecked=0, Total=1406 [2022-11-16 20:04:29,331 INFO L87 Difference]: Start difference. First operand 20533 states and 79270 transitions. Second operand has 38 states, 38 states have (on average 1.763157894736842) internal successors, (67), 38 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:04:31,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:04:31,100 INFO L93 Difference]: Finished difference Result 20539 states and 79276 transitions. [2022-11-16 20:04:31,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 20:04:31,101 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 1.763157894736842) internal successors, (67), 38 states have internal predecessors, (67), 0 states have call successors, (0), 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 87 [2022-11-16 20:04:31,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:04:31,216 INFO L225 Difference]: With dead ends: 20539 [2022-11-16 20:04:31,217 INFO L226 Difference]: Without dead ends: 20539 [2022-11-16 20:04:31,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=527, Invalid=879, Unknown=0, NotChecked=0, Total=1406 [2022-11-16 20:04:31,219 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1067 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 1067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 20:04:31,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 1233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 1067 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 20:04:31,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20539 states. [2022-11-16 20:04:31,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20539 to 20539. [2022-11-16 20:04:31,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20539 states, 14708 states have (on average 5.38999184117487) internal successors, (79276), 20538 states have internal predecessors, (79276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:04:31,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20539 states to 20539 states and 79276 transitions. [2022-11-16 20:04:31,800 INFO L78 Accepts]: Start accepts. Automaton has 20539 states and 79276 transitions. Word has length 87 [2022-11-16 20:04:31,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:04:31,801 INFO L495 AbstractCegarLoop]: Abstraction has 20539 states and 79276 transitions. [2022-11-16 20:04:31,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 1.763157894736842) internal successors, (67), 38 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:04:31,801 INFO L276 IsEmpty]: Start isEmpty. Operand 20539 states and 79276 transitions. [2022-11-16 20:04:31,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-16 20:04:31,803 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:04:31,803 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:04:31,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-11-16 20:04:32,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-16 20:04:32,019 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err25ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 180 more)] === [2022-11-16 20:04:32,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:04:32,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1468113515, now seen corresponding path program 2 times [2022-11-16 20:04:32,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:04:32,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302579408] [2022-11-16 20:04:32,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:04:32,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:04:33,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:04:39,741 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 1 proven. 32 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-11-16 20:04:39,741 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:04:39,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302579408] [2022-11-16 20:04:39,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302579408] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:04:39,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974685886] [2022-11-16 20:04:39,742 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 20:04:39,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:04:39,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:04:39,747 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:04:39,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20876692-2139-4ff7-967b-c9f09ecb4ef0/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-16 20:04:44,198 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-16 20:04:44,198 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 20:04:44,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 1062 conjuncts, 43 conjunts are in the unsatisfiable core [2022-11-16 20:04:44,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:04:44,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 20:04:44,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 20:04:44,651 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 20:04:44,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-16 20:04:44,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-16 20:04:44,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-16 20:04:44,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-16 20:04:44,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-16 20:04:44,975 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-16 20:04:44,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-16 20:04:45,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-16 20:04:45,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-16 20:04:45,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-16 20:04:45,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-16 20:04:45,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:04:45,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-16 20:04:45,395 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2022-11-16 20:04:45,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:05:00,904 WARN L233 SmtUtils]: Spent 14.88s on a formula simplification. DAG size of input: 91 DAG size of output: 62 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:05:01,166 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (+ c_~last_index_of_3~0.offset 12)) (.cse3 (+ 12 c_~last_index_of_7~0.offset))) (and (forall ((~last_index_of_7~0.base Int) (v_ArrVal_1707 (Array Int Int))) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1707))) (let ((.cse0 (select (select .cse1 ~last_index_of_7~0.base) .cse3))) (or (not (<= 0 .cse0)) (not (<= .cse0 0)) (forall ((~index_of_0~0.base Int) (~index_of_0~0.offset Int)) (not (= (+ (select (select .cse1 ~index_of_0~0.base) (+ ~index_of_0~0.offset 16)) 1) 0))) (<= .cse0 (+ (select (select .cse1 c_~last_index_of_3~0.base) .cse2) 2147483648)) (forall ((~count_occurrences_of_2~0.base Int) (~count_occurrences_of_2~0.offset Int)) (<= (select (select .cse1 ~count_occurrences_of_2~0.base) (+ 12 ~count_occurrences_of_2~0.offset)) 1)))))) (forall ((~last_index_of_7~0.base Int) (v_ArrVal_1707 (Array Int Int))) (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1707))) (let ((.cse4 (select (select .cse5 ~last_index_of_7~0.base) .cse3))) (or (<= 0 .cse4) (forall ((~index_of_0~0.base Int) (~index_of_0~0.offset Int)) (not (= (+ (select (select .cse5 ~index_of_0~0.base) (+ ~index_of_0~0.offset 16)) 1) 0))) (not (<= 0 (+ .cse4 4294967295))) (<= .cse4 (+ (select (select .cse5 c_~last_index_of_3~0.base) .cse2) 2147483648)) (forall ((~count_occurrences_of_2~0.base Int) (~count_occurrences_of_2~0.offset Int)) (<= (select (select .cse5 ~count_occurrences_of_2~0.base) (+ 12 ~count_occurrences_of_2~0.offset)) 1)))))) (forall ((~last_index_of_7~0.base Int) (v_ArrVal_1707 (Array Int Int))) (let ((.cse6 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1707))) (let ((.cse8 (select (select .cse6 ~last_index_of_7~0.base) .cse3))) (or (forall ((~count_occurrences_of_2~0.base Int) (~count_occurrences_of_2~0.offset Int)) (not (= (select (select .cse6 ~count_occurrences_of_2~0.base) (+ 12 ~count_occurrences_of_2~0.offset)) 1))) (forall ((~index_of_0~0.base Int) (~index_of_0~0.offset Int)) (let ((.cse7 (select .cse6 ~index_of_0~0.base))) (or (= (+ (select .cse7 (+ ~index_of_0~0.offset 8)) 1) 0) (not (= (+ (select .cse7 (+ ~index_of_0~0.offset 16)) 1) 0))))) (<= 0 .cse8) (not (<= 0 (+ .cse8 4294967295))) (<= .cse8 (+ (select (select .cse6 c_~last_index_of_3~0.base) .cse2) 2147483648)))))) (forall ((~last_index_of_7~0.base Int) (v_ArrVal_1707 (Array Int Int))) (let ((.cse9 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1707))) (let ((.cse11 (select (select .cse9 ~last_index_of_7~0.base) .cse3))) (or (forall ((~count_occurrences_of_2~0.base Int) (~count_occurrences_of_2~0.offset Int)) (not (= (select (select .cse9 ~count_occurrences_of_2~0.base) (+ 12 ~count_occurrences_of_2~0.offset)) 1))) (forall ((~index_of_0~0.base Int) (~index_of_0~0.offset Int)) (let ((.cse10 (select .cse9 ~index_of_0~0.base))) (or (= (+ (select .cse10 (+ ~index_of_0~0.offset 8)) 1) 0) (not (= (+ (select .cse10 (+ ~index_of_0~0.offset 16)) 1) 0))))) (not (<= 0 .cse11)) (not (<= .cse11 0)) (<= .cse11 (+ (select (select .cse9 c_~last_index_of_3~0.base) .cse2) 2147483648)))))))) is different from false [2022-11-16 20:05:01,370 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse3 (+ c_~last_index_of_3~0.offset 12)) (.cse4 (+ 12 c_~last_index_of_7~0.offset))) (and (forall ((~last_index_of_7~0.base Int) (v_ArrVal_1707 (Array Int Int)) (v_ArrVal_1706 (Array Int Int))) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_1706) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1707))) (let ((.cse1 (select (select .cse0 ~last_index_of_7~0.base) .cse4))) (or (forall ((~count_occurrences_of_2~0.base Int) (~count_occurrences_of_2~0.offset Int)) (not (= (select (select .cse0 ~count_occurrences_of_2~0.base) (+ 12 ~count_occurrences_of_2~0.offset)) 1))) (not (<= 0 .cse1)) (forall ((~index_of_0~0.base Int) (~index_of_0~0.offset Int)) (let ((.cse2 (select .cse0 ~index_of_0~0.base))) (or (= (+ (select .cse2 (+ ~index_of_0~0.offset 8)) 1) 0) (not (= (+ (select .cse2 (+ ~index_of_0~0.offset 16)) 1) 0))))) (not (<= .cse1 0)) (<= .cse1 (+ (select (select .cse0 c_~last_index_of_3~0.base) .cse3) 2147483648)))))) (forall ((~last_index_of_7~0.base Int) (v_ArrVal_1707 (Array Int Int)) (v_ArrVal_1706 (Array Int Int))) (let ((.cse6 (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_1706) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1707))) (let ((.cse5 (select (select .cse6 ~last_index_of_7~0.base) .cse4))) (or (not (<= 0 (+ .cse5 4294967295))) (forall ((~index_of_0~0.base Int) (~index_of_0~0.offset Int)) (not (= (+ (select (select .cse6 ~index_of_0~0.base) (+ ~index_of_0~0.offset 16)) 1) 0))) (<= 0 .cse5) (forall ((~count_occurrences_of_2~0.base Int) (~count_occurrences_of_2~0.offset Int)) (<= (select (select .cse6 ~count_occurrences_of_2~0.base) (+ 12 ~count_occurrences_of_2~0.offset)) 1)) (<= .cse5 (+ (select (select .cse6 c_~last_index_of_3~0.base) .cse3) 2147483648)))))) (forall ((~last_index_of_7~0.base Int) (v_ArrVal_1707 (Array Int Int)) (v_ArrVal_1706 (Array Int Int))) (let ((.cse7 (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_1706) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1707))) (let ((.cse8 (select (select .cse7 ~last_index_of_7~0.base) .cse4))) (or (forall ((~index_of_0~0.base Int) (~index_of_0~0.offset Int)) (not (= (+ (select (select .cse7 ~index_of_0~0.base) (+ ~index_of_0~0.offset 16)) 1) 0))) (not (<= 0 .cse8)) (forall ((~count_occurrences_of_2~0.base Int) (~count_occurrences_of_2~0.offset Int)) (<= (select (select .cse7 ~count_occurrences_of_2~0.base) (+ 12 ~count_occurrences_of_2~0.offset)) 1)) (not (<= .cse8 0)) (<= .cse8 (+ (select (select .cse7 c_~last_index_of_3~0.base) .cse3) 2147483648)))))) (forall ((~last_index_of_7~0.base Int) (v_ArrVal_1707 (Array Int Int)) (v_ArrVal_1706 (Array Int Int))) (let ((.cse10 (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_1706) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1707))) (let ((.cse9 (select (select .cse10 ~last_index_of_7~0.base) .cse4))) (or (not (<= 0 (+ .cse9 4294967295))) (<= 0 .cse9) (forall ((~count_occurrences_of_2~0.base Int) (~count_occurrences_of_2~0.offset Int)) (not (= (select (select .cse10 ~count_occurrences_of_2~0.base) (+ 12 ~count_occurrences_of_2~0.offset)) 1))) (forall ((~index_of_0~0.base Int) (~index_of_0~0.offset Int)) (let ((.cse11 (select .cse10 ~index_of_0~0.base))) (or (= (+ (select .cse11 (+ ~index_of_0~0.offset 8)) 1) 0) (not (= (+ (select .cse11 (+ ~index_of_0~0.offset 16)) 1) 0))))) (<= .cse9 (+ (select (select .cse10 c_~last_index_of_3~0.base) .cse3) 2147483648)))))))) is different from false [2022-11-16 20:05:09,304 WARN L233 SmtUtils]: Spent 6.19s on a formula simplification that was a NOOP. DAG size: 82 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:05:17,477 WARN L233 SmtUtils]: Spent 6.50s on a formula simplification that was a NOOP. DAG size: 97 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:05:17,751 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:05:17,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 845 treesize of output 546 [2022-11-16 20:05:24,287 WARN L233 SmtUtils]: Spent 6.30s on a formula simplification that was a NOOP. DAG size: 575 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-16 20:05:24,288 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:05:24,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 73371 treesize of output 70772 [2022-11-16 20:05:26,580 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:05:26,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 69307 treesize of output 62654 [2022-11-16 20:05:29,221 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:05:29,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 62571 treesize of output 59286 [2022-11-16 20:05:31,590 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:05:31,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 59203 treesize of output 57602 [2022-11-16 20:05:34,002 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:05:34,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 57519 treesize of output 57094 [2022-11-16 20:05:36,246 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:05:36,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 57039 treesize of output 56662 [2022-11-16 20:05:38,464 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:05:38,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56607 treesize of output 56422 [2022-11-16 20:05:40,905 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:05:40,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56367 treesize of output 56302 [2022-11-16 20:05:43,598 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:05:43,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 56247 treesize of output 55910 [2022-11-16 20:05:46,345 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:05:46,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 55827 treesize of output 54230 [2022-11-16 20:05:49,391 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:05:49,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 54147 treesize of output 53390 [2022-11-16 20:05:52,396 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:05:52,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 53307 treesize of output 52498 [2022-11-16 20:05:55,409 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:05:55,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 52443 treesize of output 52282