./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread/triangular-longer-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/triangular-longer-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS --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 647bb9f2bc4e44b8324ce986a0773d034e56e6ec110a9fd5233f5c8c0dbbeb10 --- 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-8393723 [2022-11-19 06:46:10,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:46:10,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:46:10,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:46:10,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:46:10,305 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:46:10,308 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:46:10,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:46:10,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:46:10,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:46:10,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:46:10,325 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:46:10,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:46:10,331 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:46:10,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:46:10,334 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:46:10,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:46:10,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:46:10,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:46:10,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:46:10,349 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:46:10,352 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:46:10,353 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:46:10,354 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:46:10,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:46:10,363 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:46:10,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:46:10,365 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:46:10,365 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:46:10,367 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:46:10,367 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:46:10,368 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:46:10,369 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:46:10,370 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:46:10,371 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:46:10,371 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:46:10,372 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:46:10,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:46:10,373 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:46:10,374 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:46:10,374 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:46:10,375 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 06:46:10,417 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:46:10,417 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:46:10,418 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:46:10,418 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:46:10,419 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:46:10,419 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:46:10,419 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:46:10,419 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:46:10,419 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:46:10,420 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:46:10,420 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:46:10,420 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:46:10,420 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:46:10,420 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:46:10,420 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:46:10,421 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:46:10,421 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:46:10,421 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:46:10,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:46:10,422 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:46:10,422 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 06:46:10,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:46:10,425 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:46:10,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:46:10,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:46:10,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:46:10,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:46:10,428 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 06:46:10,429 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:46:10,429 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:46:10,429 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:46:10,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:46:10,430 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:46:10,430 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:46:10,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:46:10,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:46:10,431 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:46:10,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:46:10,432 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:46:10,433 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:46:10,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:46:10,433 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:46:10,433 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:46:10,433 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_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 647bb9f2bc4e44b8324ce986a0773d034e56e6ec110a9fd5233f5c8c0dbbeb10 [2022-11-19 06:46:10,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:46:10,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:46:10,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:46:10,811 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:46:10,812 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:46:10,814 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/pthread/triangular-longer-2.i [2022-11-19 06:46:10,893 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/data/0333ba929/b225bb8f83d542008c35e212b2db3e66/FLAGab88cf5d3 [2022-11-19 06:46:11,511 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:46:11,512 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/sv-benchmarks/c/pthread/triangular-longer-2.i [2022-11-19 06:46:11,532 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/data/0333ba929/b225bb8f83d542008c35e212b2db3e66/FLAGab88cf5d3 [2022-11-19 06:46:11,748 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/data/0333ba929/b225bb8f83d542008c35e212b2db3e66 [2022-11-19 06:46:11,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:46:11,755 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:46:11,761 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:46:11,761 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:46:11,766 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:46:11,767 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:46:11" (1/1) ... [2022-11-19 06:46:11,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ab20436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:46:11, skipping insertion in model container [2022-11-19 06:46:11,769 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:46:11" (1/1) ... [2022-11-19 06:46:11,778 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:46:11,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:46:12,204 WARN L234 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_7da90691-74f3-4b2a-b017-c2f4588a7087/sv-benchmarks/c/pthread/triangular-longer-2.i[30963,30976] [2022-11-19 06:46:12,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:46:12,214 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:46:12,260 WARN L234 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_7da90691-74f3-4b2a-b017-c2f4588a7087/sv-benchmarks/c/pthread/triangular-longer-2.i[30963,30976] [2022-11-19 06:46:12,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:46:12,295 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:46:12,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:46:12 WrapperNode [2022-11-19 06:46:12,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:46:12,297 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:46:12,297 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:46:12,297 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:46:12,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:46:12" (1/1) ... [2022-11-19 06:46:12,319 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:46:12" (1/1) ... [2022-11-19 06:46:12,342 INFO L138 Inliner]: procedures = 169, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 47 [2022-11-19 06:46:12,343 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:46:12,344 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:46:12,344 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:46:12,344 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:46:12,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:46:12" (1/1) ... [2022-11-19 06:46:12,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:46:12" (1/1) ... [2022-11-19 06:46:12,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:46:12" (1/1) ... [2022-11-19 06:46:12,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:46:12" (1/1) ... [2022-11-19 06:46:12,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:46:12" (1/1) ... [2022-11-19 06:46:12,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:46:12" (1/1) ... [2022-11-19 06:46:12,396 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:46:12" (1/1) ... [2022-11-19 06:46:12,407 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:46:12" (1/1) ... [2022-11-19 06:46:12,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:46:12,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:46:12,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:46:12,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:46:12,412 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:46:12" (1/1) ... [2022-11-19 06:46:12,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:46:12,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:46:12,461 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:46:12,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:46:12,519 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-19 06:46:12,520 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-19 06:46:12,520 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-19 06:46:12,520 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-19 06:46:12,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 06:46:12,521 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-19 06:46:12,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:46:12,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 06:46:12,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 06:46:12,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:46:12,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-19 06:46:12,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:46:12,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:46:12,524 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 06:46:12,691 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:46:12,693 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:46:12,897 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:46:12,927 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:46:12,928 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 06:46:12,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:46:12 BoogieIcfgContainer [2022-11-19 06:46:12,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:46:12,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:46:12,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:46:12,938 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:46:12,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:46:11" (1/3) ... [2022-11-19 06:46:12,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f24848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:46:12, skipping insertion in model container [2022-11-19 06:46:12,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:46:12" (2/3) ... [2022-11-19 06:46:12,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f24848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:46:12, skipping insertion in model container [2022-11-19 06:46:12,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:46:12" (3/3) ... [2022-11-19 06:46:12,942 INFO L112 eAbstractionObserver]: Analyzing ICFG triangular-longer-2.i [2022-11-19 06:46:12,952 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-19 06:46:12,965 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:46:12,966 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-19 06:46:12,966 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 06:46:13,036 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-19 06:46:13,074 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 06:46:13,091 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 81 transitions, 172 flow [2022-11-19 06:46:13,095 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 81 transitions, 172 flow [2022-11-19 06:46:13,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 81 transitions, 172 flow [2022-11-19 06:46:13,145 INFO L130 PetriNetUnfolder]: 5/79 cut-off events. [2022-11-19 06:46:13,146 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-19 06:46:13,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 79 events. 5/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 112 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2022-11-19 06:46:13,155 INFO L119 LiptonReduction]: Number of co-enabled transitions 1870 [2022-11-19 06:46:17,050 INFO L134 LiptonReduction]: Checked pairs total: 1993 [2022-11-19 06:46:17,051 INFO L136 LiptonReduction]: Total number of compositions: 76 [2022-11-19 06:46:17,060 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 23 transitions, 56 flow [2022-11-19 06:46:17,093 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 160 states, 136 states have (on average 3.3970588235294117) internal successors, (462), 159 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:17,114 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:46:17,122 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;@50467e8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:46:17,122 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-11-19 06:46:17,125 INFO L276 IsEmpty]: Start isEmpty. Operand has 160 states, 136 states have (on average 3.3970588235294117) internal successors, (462), 159 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:17,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 06:46:17,131 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:46:17,131 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 06:46:17,132 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-11-19 06:46:17,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:46:17,138 INFO L85 PathProgramCache]: Analyzing trace with hash 10266221, now seen corresponding path program 1 times [2022-11-19 06:46:17,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:46:17,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573217685] [2022-11-19 06:46:17,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:46:17,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:46:17,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:46:17,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:17,414 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:46:17,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573217685] [2022-11-19 06:46:17,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573217685] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:46:17,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:46:17,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 06:46:17,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040399201] [2022-11-19 06:46:17,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:46:17,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:46:17,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:46:17,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:46:17,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:46:17,449 INFO L87 Difference]: Start difference. First operand has 160 states, 136 states have (on average 3.3970588235294117) internal successors, (462), 159 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:17,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:46:17,534 INFO L93 Difference]: Finished difference Result 174 states and 463 transitions. [2022-11-19 06:46:17,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:46:17,540 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-19 06:46:17,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:46:17,557 INFO L225 Difference]: With dead ends: 174 [2022-11-19 06:46:17,557 INFO L226 Difference]: Without dead ends: 174 [2022-11-19 06:46:17,558 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 [2022-11-19 06:46:17,565 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 12 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:46:17,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 0 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 06:46:17,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-11-19 06:46:17,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 138. [2022-11-19 06:46:17,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 123 states have (on average 3.227642276422764) internal successors, (397), 137 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:17,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 397 transitions. [2022-11-19 06:46:17,647 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 397 transitions. Word has length 4 [2022-11-19 06:46:17,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:46:17,648 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 397 transitions. [2022-11-19 06:46:17,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:17,649 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 397 transitions. [2022-11-19 06:46:17,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 06:46:17,649 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:46:17,649 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 06:46:17,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:46:17,650 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-11-19 06:46:17,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:46:17,650 INFO L85 PathProgramCache]: Analyzing trace with hash 10266222, now seen corresponding path program 1 times [2022-11-19 06:46:17,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:46:17,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676137421] [2022-11-19 06:46:17,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:46:17,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:46:17,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:46:17,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:17,803 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:46:17,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676137421] [2022-11-19 06:46:17,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676137421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:46:17,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:46:17,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 06:46:17,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250067360] [2022-11-19 06:46:17,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:46:17,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:46:17,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:46:17,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:46:17,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:46:17,808 INFO L87 Difference]: Start difference. First operand 138 states and 397 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:17,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:46:17,860 INFO L93 Difference]: Finished difference Result 169 states and 439 transitions. [2022-11-19 06:46:17,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:46:17,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-19 06:46:17,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:46:17,863 INFO L225 Difference]: With dead ends: 169 [2022-11-19 06:46:17,863 INFO L226 Difference]: Without dead ends: 169 [2022-11-19 06:46:17,863 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 [2022-11-19 06:46:17,865 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 11 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:46:17,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 0 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 06:46:17,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-11-19 06:46:17,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 133. [2022-11-19 06:46:17,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 118 states have (on average 3.1610169491525424) internal successors, (373), 132 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:17,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 373 transitions. [2022-11-19 06:46:17,878 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 373 transitions. Word has length 4 [2022-11-19 06:46:17,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:46:17,878 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 373 transitions. [2022-11-19 06:46:17,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:17,879 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 373 transitions. [2022-11-19 06:46:17,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 06:46:17,879 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:46:17,879 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 06:46:17,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 06:46:17,880 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-11-19 06:46:17,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:46:17,880 INFO L85 PathProgramCache]: Analyzing trace with hash 10266255, now seen corresponding path program 1 times [2022-11-19 06:46:17,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:46:17,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396918546] [2022-11-19 06:46:17,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:46:17,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:46:17,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:46:17,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:17,954 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:46:17,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396918546] [2022-11-19 06:46:17,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396918546] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:46:17,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:46:17,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:46:17,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545312058] [2022-11-19 06:46:17,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:46:17,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:46:17,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:46:17,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:46:17,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:46:17,957 INFO L87 Difference]: Start difference. First operand 133 states and 373 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:18,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:46:18,043 INFO L93 Difference]: Finished difference Result 195 states and 540 transitions. [2022-11-19 06:46:18,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:46:18,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-19 06:46:18,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:46:18,046 INFO L225 Difference]: With dead ends: 195 [2022-11-19 06:46:18,046 INFO L226 Difference]: Without dead ends: 195 [2022-11-19 06:46:18,046 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 [2022-11-19 06:46:18,048 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 12 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:46:18,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 0 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:46:18,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-11-19 06:46:18,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 165. [2022-11-19 06:46:18,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 150 states have (on average 3.2666666666666666) internal successors, (490), 164 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:18,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 490 transitions. [2022-11-19 06:46:18,074 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 490 transitions. Word has length 4 [2022-11-19 06:46:18,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:46:18,074 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 490 transitions. [2022-11-19 06:46:18,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:18,074 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 490 transitions. [2022-11-19 06:46:18,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 06:46:18,075 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:46:18,075 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 06:46:18,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 06:46:18,076 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-11-19 06:46:18,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:46:18,076 INFO L85 PathProgramCache]: Analyzing trace with hash 318254386, now seen corresponding path program 1 times [2022-11-19 06:46:18,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:46:18,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738016546] [2022-11-19 06:46:18,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:46:18,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:46:18,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:46:18,168 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:18,170 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:46:18,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738016546] [2022-11-19 06:46:18,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738016546] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:46:18,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223349869] [2022-11-19 06:46:18,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:46:18,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:46:18,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:46:18,182 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:46:18,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 06:46:18,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:46:18,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 06:46:18,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:46:18,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:18,353 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:46:18,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223349869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:46:18,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 06:46:18,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-11-19 06:46:18,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823486096] [2022-11-19 06:46:18,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:46:18,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:46:18,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:46:18,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:46:18,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:46:18,355 INFO L87 Difference]: Start difference. First operand 165 states and 490 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:18,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:46:18,484 INFO L93 Difference]: Finished difference Result 175 states and 476 transitions. [2022-11-19 06:46:18,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:46:18,485 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-19 06:46:18,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:46:18,487 INFO L225 Difference]: With dead ends: 175 [2022-11-19 06:46:18,488 INFO L226 Difference]: Without dead ends: 166 [2022-11-19 06:46:18,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:46:18,489 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 26 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:46:18,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 0 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:46:18,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-19 06:46:18,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 133. [2022-11-19 06:46:18,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 122 states have (on average 3.2049180327868854) internal successors, (391), 132 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:18,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 391 transitions. [2022-11-19 06:46:18,517 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 391 transitions. Word has length 5 [2022-11-19 06:46:18,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:46:18,518 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 391 transitions. [2022-11-19 06:46:18,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:18,518 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 391 transitions. [2022-11-19 06:46:18,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-19 06:46:18,519 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:46:18,519 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-19 06:46:18,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 06:46:18,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:46:18,725 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-11-19 06:46:18,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:46:18,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1277431167, now seen corresponding path program 1 times [2022-11-19 06:46:18,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:46:18,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402243160] [2022-11-19 06:46:18,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:46:18,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:46:18,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:46:18,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:18,812 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:46:18,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402243160] [2022-11-19 06:46:18,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402243160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:46:18,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:46:18,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 06:46:18,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60375788] [2022-11-19 06:46:18,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:46:18,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:46:18,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:46:18,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:46:18,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:46:18,815 INFO L87 Difference]: Start difference. First operand 133 states and 391 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:18,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:46:18,880 INFO L93 Difference]: Finished difference Result 157 states and 428 transitions. [2022-11-19 06:46:18,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:46:18,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-19 06:46:18,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:46:18,887 INFO L225 Difference]: With dead ends: 157 [2022-11-19 06:46:18,887 INFO L226 Difference]: Without dead ends: 157 [2022-11-19 06:46:18,888 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 [2022-11-19 06:46:18,889 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:46:18,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 0 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:46:18,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-11-19 06:46:18,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 127. [2022-11-19 06:46:18,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 116 states have (on average 3.2844827586206895) internal successors, (381), 126 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:18,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 381 transitions. [2022-11-19 06:46:18,909 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 381 transitions. Word has length 6 [2022-11-19 06:46:18,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:46:18,911 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 381 transitions. [2022-11-19 06:46:18,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:18,914 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 381 transitions. [2022-11-19 06:46:18,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-19 06:46:18,915 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:46:18,915 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-19 06:46:18,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 06:46:18,915 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-11-19 06:46:18,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:46:18,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1277431168, now seen corresponding path program 1 times [2022-11-19 06:46:18,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:46:18,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502298485] [2022-11-19 06:46:18,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:46:18,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:46:18,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:46:18,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:18,991 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:46:18,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502298485] [2022-11-19 06:46:18,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502298485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:46:18,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:46:18,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 06:46:18,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57429641] [2022-11-19 06:46:18,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:46:18,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:46:18,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:46:18,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:46:18,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:46:18,994 INFO L87 Difference]: Start difference. First operand 127 states and 381 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:19,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:46:19,032 INFO L93 Difference]: Finished difference Result 145 states and 384 transitions. [2022-11-19 06:46:19,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:46:19,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-19 06:46:19,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:46:19,034 INFO L225 Difference]: With dead ends: 145 [2022-11-19 06:46:19,034 INFO L226 Difference]: Without dead ends: 145 [2022-11-19 06:46:19,034 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 [2022-11-19 06:46:19,035 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:46:19,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 06:46:19,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-11-19 06:46:19,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 115. [2022-11-19 06:46:19,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 104 states have (on average 3.2403846153846154) internal successors, (337), 114 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:19,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 337 transitions. [2022-11-19 06:46:19,043 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 337 transitions. Word has length 6 [2022-11-19 06:46:19,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:46:19,043 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 337 transitions. [2022-11-19 06:46:19,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:19,044 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 337 transitions. [2022-11-19 06:46:19,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-19 06:46:19,044 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:46:19,044 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-19 06:46:19,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 06:46:19,045 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-11-19 06:46:19,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:46:19,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1277431203, now seen corresponding path program 1 times [2022-11-19 06:46:19,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:46:19,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751331327] [2022-11-19 06:46:19,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:46:19,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:46:19,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:46:19,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:19,086 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:46:19,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751331327] [2022-11-19 06:46:19,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751331327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:46:19,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:46:19,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:46:19,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730403454] [2022-11-19 06:46:19,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:46:19,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:46:19,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:46:19,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:46:19,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:46:19,088 INFO L87 Difference]: Start difference. First operand 115 states and 337 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) [2022-11-19 06:46:19,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:46:19,126 INFO L93 Difference]: Finished difference Result 124 states and 343 transitions. [2022-11-19 06:46:19,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:46:19,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-19 06:46:19,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:46:19,128 INFO L225 Difference]: With dead ends: 124 [2022-11-19 06:46:19,128 INFO L226 Difference]: Without dead ends: 124 [2022-11-19 06:46:19,129 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 [2022-11-19 06:46:19,129 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:46:19,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 0 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 06:46:19,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-11-19 06:46:19,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 118. [2022-11-19 06:46:19,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 107 states have (on average 3.1682242990654204) internal successors, (339), 117 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:19,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 339 transitions. [2022-11-19 06:46:19,170 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 339 transitions. Word has length 6 [2022-11-19 06:46:19,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:46:19,170 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 339 transitions. [2022-11-19 06:46:19,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) [2022-11-19 06:46:19,171 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 339 transitions. [2022-11-19 06:46:19,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-19 06:46:19,174 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:46:19,175 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:46:19,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 06:46:19,175 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-11-19 06:46:19,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:46:19,176 INFO L85 PathProgramCache]: Analyzing trace with hash 945661890, now seen corresponding path program 1 times [2022-11-19 06:46:19,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:46:19,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604781988] [2022-11-19 06:46:19,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:46:19,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:46:19,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:46:19,237 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:19,238 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:46:19,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604781988] [2022-11-19 06:46:19,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604781988] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:46:19,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:46:19,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:46:19,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523073619] [2022-11-19 06:46:19,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:46:19,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:46:19,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:46:19,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:46:19,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:46:19,243 INFO L87 Difference]: Start difference. First operand 118 states and 339 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:19,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:46:19,288 INFO L93 Difference]: Finished difference Result 100 states and 279 transitions. [2022-11-19 06:46:19,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:46:19,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2022-11-19 06:46:19,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:46:19,291 INFO L225 Difference]: With dead ends: 100 [2022-11-19 06:46:19,291 INFO L226 Difference]: Without dead ends: 100 [2022-11-19 06:46:19,291 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 [2022-11-19 06:46:19,297 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:46:19,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 0 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 06:46:19,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-11-19 06:46:19,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 97. [2022-11-19 06:46:19,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 89 states have (on average 3.0112359550561796) internal successors, (268), 96 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:19,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 268 transitions. [2022-11-19 06:46:19,314 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 268 transitions. Word has length 7 [2022-11-19 06:46:19,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:46:19,314 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 268 transitions. [2022-11-19 06:46:19,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:19,315 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 268 transitions. [2022-11-19 06:46:19,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 06:46:19,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:46:19,317 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:46:19,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 06:46:19,318 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-11-19 06:46:19,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:46:19,319 INFO L85 PathProgramCache]: Analyzing trace with hash 2123581793, now seen corresponding path program 1 times [2022-11-19 06:46:19,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:46:19,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132014855] [2022-11-19 06:46:19,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:46:19,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:46:19,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:46:19,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:19,417 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:46:19,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132014855] [2022-11-19 06:46:19,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132014855] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:46:19,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:46:19,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:46:19,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780122520] [2022-11-19 06:46:19,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:46:19,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:46:19,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:46:19,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:46:19,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:46:19,421 INFO L87 Difference]: Start difference. First operand 97 states and 268 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2022-11-19 06:46:19,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:46:19,502 INFO L93 Difference]: Finished difference Result 154 states and 396 transitions. [2022-11-19 06:46:19,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:46:19,503 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 8 [2022-11-19 06:46:19,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:46:19,504 INFO L225 Difference]: With dead ends: 154 [2022-11-19 06:46:19,505 INFO L226 Difference]: Without dead ends: 154 [2022-11-19 06:46:19,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:46:19,506 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 30 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:46:19,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 0 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:46:19,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2022-11-19 06:46:19,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 106. [2022-11-19 06:46:19,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 98 states have (on average 3.163265306122449) internal successors, (310), 105 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:19,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 310 transitions. [2022-11-19 06:46:19,512 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 310 transitions. Word has length 8 [2022-11-19 06:46:19,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:46:19,513 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 310 transitions. [2022-11-19 06:46:19,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2022-11-19 06:46:19,513 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 310 transitions. [2022-11-19 06:46:19,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 06:46:19,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:46:19,514 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:46:19,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 06:46:19,514 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-11-19 06:46:19,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:46:19,515 INFO L85 PathProgramCache]: Analyzing trace with hash 2123581794, now seen corresponding path program 1 times [2022-11-19 06:46:19,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:46:19,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623363707] [2022-11-19 06:46:19,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:46:19,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:46:19,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:46:19,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:19,556 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:46:19,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623363707] [2022-11-19 06:46:19,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623363707] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:46:19,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:46:19,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:46:19,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814491477] [2022-11-19 06:46:19,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:46:19,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:46:19,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:46:19,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:46:19,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:46:19,559 INFO L87 Difference]: Start difference. First operand 106 states and 310 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2022-11-19 06:46:19,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:46:19,633 INFO L93 Difference]: Finished difference Result 148 states and 386 transitions. [2022-11-19 06:46:19,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:46:19,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 8 [2022-11-19 06:46:19,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:46:19,635 INFO L225 Difference]: With dead ends: 148 [2022-11-19 06:46:19,635 INFO L226 Difference]: Without dead ends: 140 [2022-11-19 06:46:19,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:46:19,636 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 23 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:46:19,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 0 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:46:19,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-11-19 06:46:19,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 104. [2022-11-19 06:46:19,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 96 states have (on average 3.15625) internal successors, (303), 103 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:19,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 303 transitions. [2022-11-19 06:46:19,643 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 303 transitions. Word has length 8 [2022-11-19 06:46:19,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:46:19,643 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 303 transitions. [2022-11-19 06:46:19,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2022-11-19 06:46:19,644 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 303 transitions. [2022-11-19 06:46:19,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 06:46:19,644 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:46:19,645 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:46:19,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 06:46:19,645 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-11-19 06:46:19,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:46:19,646 INFO L85 PathProgramCache]: Analyzing trace with hash 2108975838, now seen corresponding path program 1 times [2022-11-19 06:46:19,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:46:19,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926046541] [2022-11-19 06:46:19,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:46:19,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:46:19,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:46:19,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:19,690 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:46:19,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926046541] [2022-11-19 06:46:19,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926046541] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:46:19,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:46:19,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:46:19,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887385725] [2022-11-19 06:46:19,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:46:19,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:46:19,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:46:19,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:46:19,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:46:19,692 INFO L87 Difference]: Start difference. First operand 104 states and 303 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2022-11-19 06:46:19,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:46:19,766 INFO L93 Difference]: Finished difference Result 161 states and 431 transitions. [2022-11-19 06:46:19,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:46:19,767 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 8 [2022-11-19 06:46:19,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:46:19,769 INFO L225 Difference]: With dead ends: 161 [2022-11-19 06:46:19,769 INFO L226 Difference]: Without dead ends: 161 [2022-11-19 06:46:19,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:46:19,770 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 23 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:46:19,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 0 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:46:19,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-11-19 06:46:19,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 116. [2022-11-19 06:46:19,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 108 states have (on average 3.2685185185185186) internal successors, (353), 115 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:19,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 353 transitions. [2022-11-19 06:46:19,778 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 353 transitions. Word has length 8 [2022-11-19 06:46:19,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:46:19,778 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 353 transitions. [2022-11-19 06:46:19,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2022-11-19 06:46:19,779 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 353 transitions. [2022-11-19 06:46:19,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 06:46:19,779 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:46:19,779 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:46:19,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-19 06:46:19,780 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-11-19 06:46:19,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:46:19,781 INFO L85 PathProgramCache]: Analyzing trace with hash 2108975839, now seen corresponding path program 1 times [2022-11-19 06:46:19,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:46:19,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898559206] [2022-11-19 06:46:19,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:46:19,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:46:19,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:46:19,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:19,824 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:46:19,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898559206] [2022-11-19 06:46:19,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898559206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:46:19,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:46:19,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:46:19,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502032679] [2022-11-19 06:46:19,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:46:19,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:46:19,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:46:19,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:46:19,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:46:19,827 INFO L87 Difference]: Start difference. First operand 116 states and 353 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2022-11-19 06:46:19,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:46:19,858 INFO L93 Difference]: Finished difference Result 89 states and 263 transitions. [2022-11-19 06:46:19,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:46:19,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 8 [2022-11-19 06:46:19,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:46:19,860 INFO L225 Difference]: With dead ends: 89 [2022-11-19 06:46:19,860 INFO L226 Difference]: Without dead ends: 83 [2022-11-19 06:46:19,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:46:19,861 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 19 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:46:19,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 0 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 06:46:19,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-19 06:46:19,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 68. [2022-11-19 06:46:19,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 65 states have (on average 2.8615384615384616) internal successors, (186), 67 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:19,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 186 transitions. [2022-11-19 06:46:19,866 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 186 transitions. Word has length 8 [2022-11-19 06:46:19,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:46:19,867 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 186 transitions. [2022-11-19 06:46:19,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2022-11-19 06:46:19,867 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 186 transitions. [2022-11-19 06:46:19,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 06:46:19,868 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:46:19,868 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:46:19,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-19 06:46:19,869 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-11-19 06:46:19,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:46:19,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1406527489, now seen corresponding path program 1 times [2022-11-19 06:46:19,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:46:19,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480853925] [2022-11-19 06:46:19,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:46:19,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:46:19,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:46:19,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:19,924 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:46:19,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480853925] [2022-11-19 06:46:19,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480853925] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:46:19,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617482286] [2022-11-19 06:46:19,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:46:19,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:46:19,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:46:19,926 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:46:19,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 06:46:20,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:46:20,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 06:46:20,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:46:20,080 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:20,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:46:20,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:20,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1617482286] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:46:20,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1114537581] [2022-11-19 06:46:20,134 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) [2022-11-19 06:46:20,141 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:46:20,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-11-19 06:46:20,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557867673] [2022-11-19 06:46:20,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 06:46:20,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 06:46:20,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:46:20,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 06:46:20,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:46:20,144 INFO L87 Difference]: Start difference. First operand 68 states and 186 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:20,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:46:20,267 INFO L93 Difference]: Finished difference Result 111 states and 278 transitions. [2022-11-19 06:46:20,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 06:46:20,268 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 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 [2022-11-19 06:46:20,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:46:20,269 INFO L225 Difference]: With dead ends: 111 [2022-11-19 06:46:20,269 INFO L226 Difference]: Without dead ends: 90 [2022-11-19 06:46:20,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2022-11-19 06:46:20,271 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 66 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:46:20,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 0 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:46:20,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-11-19 06:46:20,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 61. [2022-11-19 06:46:20,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 58 states have (on average 2.7586206896551726) internal successors, (160), 60 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:20,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 160 transitions. [2022-11-19 06:46:20,276 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 160 transitions. Word has length 9 [2022-11-19 06:46:20,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:46:20,277 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 160 transitions. [2022-11-19 06:46:20,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:20,278 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 160 transitions. [2022-11-19 06:46:20,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 06:46:20,280 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:46:20,280 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:46:20,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 06:46:20,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-19 06:46:20,481 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-11-19 06:46:20,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:46:20,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1719064848, now seen corresponding path program 1 times [2022-11-19 06:46:20,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:46:20,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937359164] [2022-11-19 06:46:20,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:46:20,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:46:20,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:46:20,579 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:20,579 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:46:20,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937359164] [2022-11-19 06:46:20,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937359164] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:46:20,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406171812] [2022-11-19 06:46:20,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:46:20,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:46:20,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:46:20,581 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:46:20,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 06:46:20,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:46:20,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 06:46:20,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:46:20,721 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:20,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:46:20,792 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:20,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406171812] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:46:20,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1135439980] [2022-11-19 06:46:20,793 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) [2022-11-19 06:46:20,793 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:46:20,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-19 06:46:20,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751171970] [2022-11-19 06:46:20,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 06:46:20,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 06:46:20,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:46:20,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 06:46:20,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-11-19 06:46:20,797 INFO L87 Difference]: Start difference. First operand 61 states and 160 transitions. Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:21,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:46:21,011 INFO L93 Difference]: Finished difference Result 126 states and 305 transitions. [2022-11-19 06:46:21,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-19 06:46:21,011 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 06:46:21,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:46:21,013 INFO L225 Difference]: With dead ends: 126 [2022-11-19 06:46:21,013 INFO L226 Difference]: Without dead ends: 101 [2022-11-19 06:46:21,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=166, Invalid=296, Unknown=0, NotChecked=0, Total=462 [2022-11-19 06:46:21,014 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 147 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:46:21,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 0 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:46:21,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-11-19 06:46:21,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 76. [2022-11-19 06:46:21,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 74 states have (on average 2.554054054054054) internal successors, (189), 75 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:21,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 189 transitions. [2022-11-19 06:46:21,018 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 189 transitions. Word has length 11 [2022-11-19 06:46:21,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:46:21,019 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 189 transitions. [2022-11-19 06:46:21,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:21,019 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 189 transitions. [2022-11-19 06:46:21,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-19 06:46:21,020 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:46:21,020 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:46:21,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 06:46:21,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-19 06:46:21,227 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-11-19 06:46:21,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:46:21,229 INFO L85 PathProgramCache]: Analyzing trace with hash 694976981, now seen corresponding path program 2 times [2022-11-19 06:46:21,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:46:21,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918215489] [2022-11-19 06:46:21,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:46:21,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:46:21,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:46:21,354 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:21,355 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:46:21,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918215489] [2022-11-19 06:46:21,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918215489] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:46:21,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253853834] [2022-11-19 06:46:21,355 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 06:46:21,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:46:21,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:46:21,357 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:46:21,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 06:46:21,475 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-19 06:46:21,475 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 06:46:21,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-19 06:46:21,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:46:21,530 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:21,530 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:46:21,628 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:21,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253853834] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:46:21,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1647012747] [2022-11-19 06:46:21,629 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) [2022-11-19 06:46:21,630 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:46:21,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2022-11-19 06:46:21,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944426854] [2022-11-19 06:46:21,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 06:46:21,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-19 06:46:21,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:46:21,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-19 06:46:21,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2022-11-19 06:46:21,632 INFO L87 Difference]: Start difference. First operand 76 states and 189 transitions. Second operand has 16 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 15 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:22,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:46:22,022 INFO L93 Difference]: Finished difference Result 155 states and 352 transitions. [2022-11-19 06:46:22,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-19 06:46:22,023 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 15 states have internal predecessors, (26), 0 states have call successors, (0), 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 13 [2022-11-19 06:46:22,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:46:22,024 INFO L225 Difference]: With dead ends: 155 [2022-11-19 06:46:22,024 INFO L226 Difference]: Without dead ends: 132 [2022-11-19 06:46:22,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=612, Unknown=0, NotChecked=0, Total=930 [2022-11-19 06:46:22,025 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 166 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:46:22,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 0 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 06:46:22,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-11-19 06:46:22,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 82. [2022-11-19 06:46:22,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 80 states have (on average 2.5625) internal successors, (205), 81 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:22,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 205 transitions. [2022-11-19 06:46:22,032 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 205 transitions. Word has length 13 [2022-11-19 06:46:22,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:46:22,032 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 205 transitions. [2022-11-19 06:46:22,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 15 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:22,033 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 205 transitions. [2022-11-19 06:46:22,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-19 06:46:22,033 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:46:22,034 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:46:22,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 06:46:22,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-19 06:46:22,235 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-11-19 06:46:22,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:46:22,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1943780200, now seen corresponding path program 2 times [2022-11-19 06:46:22,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:46:22,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896607759] [2022-11-19 06:46:22,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:46:22,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:46:22,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:46:22,505 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:22,505 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:46:22,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896607759] [2022-11-19 06:46:22,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896607759] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:46:22,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6256999] [2022-11-19 06:46:22,506 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 06:46:22,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:46:22,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:46:22,508 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:46:22,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 06:46:22,643 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2022-11-19 06:46:22,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 06:46:22,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-19 06:46:22,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:46:22,714 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:22,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:46:22,969 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:22,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [6256999] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:46:22,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [78362042] [2022-11-19 06:46:22,970 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) [2022-11-19 06:46:22,971 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:46:22,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 26 [2022-11-19 06:46:22,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334171962] [2022-11-19 06:46:22,972 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 06:46:22,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-19 06:46:22,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:46:22,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-19 06:46:22,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=546, Unknown=0, NotChecked=0, Total=756 [2022-11-19 06:46:22,974 INFO L87 Difference]: Start difference. First operand 82 states and 205 transitions. Second operand has 28 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 27 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:23,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:46:23,736 INFO L93 Difference]: Finished difference Result 251 states and 566 transitions. [2022-11-19 06:46:23,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-19 06:46:23,736 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 27 states have internal predecessors, (38), 0 states have call successors, (0), 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 19 [2022-11-19 06:46:23,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:46:23,738 INFO L225 Difference]: With dead ends: 251 [2022-11-19 06:46:23,738 INFO L226 Difference]: Without dead ends: 207 [2022-11-19 06:46:23,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1086, Invalid=2220, Unknown=0, NotChecked=0, Total=3306 [2022-11-19 06:46:23,739 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 368 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:46:23,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 0 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 06:46:23,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-11-19 06:46:23,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 128. [2022-11-19 06:46:23,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 126 states have (on average 2.5793650793650795) internal successors, (325), 127 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:23,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 325 transitions. [2022-11-19 06:46:23,745 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 325 transitions. Word has length 19 [2022-11-19 06:46:23,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:46:23,746 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 325 transitions. [2022-11-19 06:46:23,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 27 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:23,746 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 325 transitions. [2022-11-19 06:46:23,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-19 06:46:23,747 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:46:23,747 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:46:23,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-19 06:46:23,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-19 06:46:23,953 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-11-19 06:46:23,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:46:23,954 INFO L85 PathProgramCache]: Analyzing trace with hash 2118026533, now seen corresponding path program 3 times [2022-11-19 06:46:23,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:46:23,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807771147] [2022-11-19 06:46:23,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:46:23,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:46:23,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:46:24,605 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:24,605 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:46:24,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807771147] [2022-11-19 06:46:24,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807771147] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:46:24,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670319198] [2022-11-19 06:46:24,606 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 06:46:24,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:46:24,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:46:24,608 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:46:24,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-19 06:46:24,752 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 06:46:24,752 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 06:46:24,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 06:46:24,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:46:25,032 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:25,033 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:46:25,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [670319198] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:46:25,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 06:46:25,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [23] total 36 [2022-11-19 06:46:25,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942456396] [2022-11-19 06:46:25,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:46:25,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 06:46:25,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:46:25,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 06:46:25,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=1015, Unknown=0, NotChecked=0, Total=1260 [2022-11-19 06:46:25,035 INFO L87 Difference]: Start difference. First operand 128 states and 325 transitions. Second operand has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:25,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:46:25,245 INFO L93 Difference]: Finished difference Result 474 states and 1163 transitions. [2022-11-19 06:46:25,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 06:46:25,246 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2022-11-19 06:46:25,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:46:25,246 INFO L225 Difference]: With dead ends: 474 [2022-11-19 06:46:25,247 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 06:46:25,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=245, Invalid=1015, Unknown=0, NotChecked=0, Total=1260 [2022-11-19 06:46:25,248 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 53 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:46:25,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 0 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 06:46:25,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 06:46:25,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 06:46:25,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:25,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 06:46:25,249 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2022-11-19 06:46:25,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:46:25,249 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 06:46:25,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:25,249 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 06:46:25,250 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 06:46:25,253 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2022-11-19 06:46:25,254 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 18 remaining) [2022-11-19 06:46:25,254 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2022-11-19 06:46:25,254 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2022-11-19 06:46:25,254 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2022-11-19 06:46:25,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2022-11-19 06:46:25,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2022-11-19 06:46:25,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2022-11-19 06:46:25,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2022-11-19 06:46:25,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2022-11-19 06:46:25,256 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2022-11-19 06:46:25,256 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2022-11-19 06:46:25,256 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2022-11-19 06:46:25,256 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2022-11-19 06:46:25,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2022-11-19 06:46:25,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2022-11-19 06:46:25,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2022-11-19 06:46:25,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2022-11-19 06:46:25,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-19 06:46:25,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-19 06:46:25,467 INFO L444 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:46:25,472 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-19 06:46:25,472 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 06:46:25,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:46:25 BasicIcfg [2022-11-19 06:46:25,474 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 06:46:25,475 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 06:46:25,475 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 06:46:25,475 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 06:46:25,475 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:46:12" (3/4) ... [2022-11-19 06:46:25,478 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 06:46:25,483 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t1 [2022-11-19 06:46:25,483 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2 [2022-11-19 06:46:25,486 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-19 06:46:25,487 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-19 06:46:25,487 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-19 06:46:25,487 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 06:46:25,529 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 06:46:25,530 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 06:46:25,531 INFO L158 Benchmark]: Toolchain (without parser) took 13775.14ms. Allocated memory was 130.0MB in the beginning and 188.7MB in the end (delta: 58.7MB). Free memory was 93.2MB in the beginning and 126.6MB in the end (delta: -33.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-19 06:46:25,531 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory is still 111.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:46:25,532 INFO L158 Benchmark]: CACSL2BoogieTranslator took 535.42ms. Allocated memory is still 130.0MB. Free memory was 93.0MB in the beginning and 96.2MB in the end (delta: -3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 06:46:25,532 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.26ms. Allocated memory is still 130.0MB. Free memory was 96.2MB in the beginning and 94.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:46:25,533 INFO L158 Benchmark]: Boogie Preprocessor took 66.45ms. Allocated memory is still 130.0MB. Free memory was 94.6MB in the beginning and 93.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:46:25,533 INFO L158 Benchmark]: RCFGBuilder took 520.12ms. Allocated memory is still 130.0MB. Free memory was 93.0MB in the beginning and 78.8MB in the end (delta: 14.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 06:46:25,534 INFO L158 Benchmark]: TraceAbstraction took 12540.63ms. Allocated memory was 130.0MB in the beginning and 188.7MB in the end (delta: 58.7MB). Free memory was 77.8MB in the beginning and 129.6MB in the end (delta: -51.8MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2022-11-19 06:46:25,534 INFO L158 Benchmark]: Witness Printer took 55.21ms. Allocated memory is still 188.7MB. Free memory was 129.6MB in the beginning and 126.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:46:25,543 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory is still 111.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 535.42ms. Allocated memory is still 130.0MB. Free memory was 93.0MB in the beginning and 96.2MB in the end (delta: -3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.26ms. Allocated memory is still 130.0MB. Free memory was 96.2MB in the beginning and 94.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.45ms. Allocated memory is still 130.0MB. Free memory was 94.6MB in the beginning and 93.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 520.12ms. Allocated memory is still 130.0MB. Free memory was 93.0MB in the beginning and 78.8MB in the end (delta: 14.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 12540.63ms. Allocated memory was 130.0MB in the beginning and 188.7MB in the end (delta: 58.7MB). Free memory was 77.8MB in the beginning and 129.6MB in the end (delta: -51.8MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * Witness Printer took 55.21ms. Allocated memory is still 188.7MB. Free memory was 129.6MB in the beginning and 126.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.0s, 83 PlacesBefore, 27 PlacesAfterwards, 81 TransitionsBefore, 23 TransitionsAfterwards, 1870 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 76 TotalNumberOfCompositions, 1993 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1696, independent: 1672, independent conditional: 0, independent unconditional: 1672, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1242, independent: 1228, independent conditional: 0, independent unconditional: 1228, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1242, independent: 1227, independent conditional: 0, independent unconditional: 1227, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 15, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 86, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1696, independent: 444, independent conditional: 0, independent unconditional: 444, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 1242, unknown conditional: 0, unknown unconditional: 1242] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 28, Positive conditional cache size: 0, Positive unconditional cache size: 28, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 698]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 698]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 706]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 706]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 704]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 704]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 111 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 12.4s, OverallIterations: 17, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 992 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 992 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 122 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1232 IncrementalHoareTripleChecker+Invalid, 1354 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 122 mSolverCounterUnsat, 0 mSDtfsCounter, 1232 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 264 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1330 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred in iteration=3, InterpolantAutomatonStates: 132, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 17 MinimizatonAttempts, 531 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 241 NumberOfCodeBlocks, 241 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 266 ConstructedInterpolants, 0 QuantifiedInterpolants, 762 SizeOfPredicates, 24 NumberOfNonLiveVariables, 999 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 27 InterpolantComputations, 13 PerfectInterpolantSequences, 123/395 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-19 06:46:25,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da90691-74f3-4b2a-b017-c2f4588a7087/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE