./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-match-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_77163347-5def-4587-b78e-a9cf90857e29/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77163347-5def-4587-b78e-a9cf90857e29/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77163347-5def-4587-b78e-a9cf90857e29/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77163347-5def-4587-b78e-a9cf90857e29/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/chl-match-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77163347-5def-4587-b78e-a9cf90857e29/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77163347-5def-4587-b78e-a9cf90857e29/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --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 77faa562cc80dab159af187984ab1ce484b13225711253aedc5512d7a84dfd3f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:20:38,919 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:20:39,081 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77163347-5def-4587-b78e-a9cf90857e29/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 06:20:39,087 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:20:39,087 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:20:39,142 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:20:39,144 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:20:39,145 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:20:39,146 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:20:39,147 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:20:39,148 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:20:39,148 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:20:39,150 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:20:39,150 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:20:39,151 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:20:39,153 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:20:39,153 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:20:39,154 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:20:39,154 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:20:39,154 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:20:39,159 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:20:39,160 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:20:39,160 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:20:39,160 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:20:39,161 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:20:39,161 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:20:39,161 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:20:39,161 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:20:39,162 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:20:39,162 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:20:39,162 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:20:39,162 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:20:39,163 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 06:20:39,165 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:20:39,165 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:20:39,165 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:20:39,166 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:20:39,166 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:20:39,167 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:20:39,168 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:20:39,168 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:20:39,169 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:20:39,169 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:20:39,169 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:20:39,169 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:20:39,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:20:39,170 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:20:39,170 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:20:39,171 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:20:39,171 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_77163347-5def-4587-b78e-a9cf90857e29/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77163347-5def-4587-b78e-a9cf90857e29/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77faa562cc80dab159af187984ab1ce484b13225711253aedc5512d7a84dfd3f [2024-11-09 06:20:39,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:20:39,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:20:39,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:20:39,608 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:20:39,612 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:20:39,614 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77163347-5def-4587-b78e-a9cf90857e29/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/weaver/chl-match-symm.wvr.c Unable to find full path for "g++" [2024-11-09 06:20:41,837 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:20:42,019 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:20:42,019 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77163347-5def-4587-b78e-a9cf90857e29/sv-benchmarks/c/weaver/chl-match-symm.wvr.c [2024-11-09 06:20:42,028 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77163347-5def-4587-b78e-a9cf90857e29/bin/utaipan-verify-YMUCfTKeje/data/7a0280997/9e69f820bb0846e6a0287573d88f3c1d/FLAG0d836b829 [2024-11-09 06:20:42,042 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77163347-5def-4587-b78e-a9cf90857e29/bin/utaipan-verify-YMUCfTKeje/data/7a0280997/9e69f820bb0846e6a0287573d88f3c1d [2024-11-09 06:20:42,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:20:42,046 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:20:42,048 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:20:42,048 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:20:42,056 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:20:42,057 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:20:42" (1/1) ... [2024-11-09 06:20:42,059 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10fe5e64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:20:42, skipping insertion in model container [2024-11-09 06:20:42,063 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:20:42" (1/1) ... [2024-11-09 06:20:42,089 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:20:42,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:20:42,330 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:20:42,353 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:20:42,372 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:20:42,373 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:20:42 WrapperNode [2024-11-09 06:20:42,373 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:20:42,374 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:20:42,374 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:20:42,375 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:20:42,382 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:20:42" (1/1) ... [2024-11-09 06:20:42,390 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:20:42" (1/1) ... [2024-11-09 06:20:42,431 INFO L138 Inliner]: procedures = 21, calls = 18, calls flagged for inlining = 12, calls inlined = 18, statements flattened = 201 [2024-11-09 06:20:42,431 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:20:42,432 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:20:42,432 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:20:42,432 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:20:42,441 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:20:42" (1/1) ... [2024-11-09 06:20:42,441 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:20:42" (1/1) ... [2024-11-09 06:20:42,444 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:20:42" (1/1) ... [2024-11-09 06:20:42,444 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:20:42" (1/1) ... [2024-11-09 06:20:42,450 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:20:42" (1/1) ... [2024-11-09 06:20:42,453 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:20:42" (1/1) ... [2024-11-09 06:20:42,454 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:20:42" (1/1) ... [2024-11-09 06:20:42,456 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:20:42" (1/1) ... [2024-11-09 06:20:42,459 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:20:42,460 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:20:42,460 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:20:42,460 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:20:42,461 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:20:42" (1/1) ... [2024-11-09 06:20:42,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:20:42,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77163347-5def-4587-b78e-a9cf90857e29/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:20:42,497 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77163347-5def-4587-b78e-a9cf90857e29/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:20:42,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77163347-5def-4587-b78e-a9cf90857e29/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:20:42,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:20:42,531 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-09 06:20:42,531 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-09 06:20:42,532 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-09 06:20:42,533 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-09 06:20:42,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:20:42,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:20:42,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:20:42,538 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 06:20:42,662 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:20:42,664 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:20:43,208 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 06:20:43,208 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:20:43,599 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:20:43,600 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:20:43,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:20:43 BoogieIcfgContainer [2024-11-09 06:20:43,601 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:20:43,604 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:20:43,605 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:20:43,610 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:20:43,610 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:20:42" (1/3) ... [2024-11-09 06:20:43,611 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37a0d97e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:20:43, skipping insertion in model container [2024-11-09 06:20:43,612 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:20:42" (2/3) ... [2024-11-09 06:20:43,613 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37a0d97e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:20:43, skipping insertion in model container [2024-11-09 06:20:43,613 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:20:43" (3/3) ... [2024-11-09 06:20:43,615 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-match-symm.wvr.c [2024-11-09 06:20:43,638 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:20:43,638 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2024-11-09 06:20:43,638 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 06:20:43,738 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 06:20:43,783 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 83 places, 84 transitions, 182 flow [2024-11-09 06:20:43,966 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2413 states, 2245 states have (on average 2.8489977728285076) internal successors, (6396), 2412 states have internal predecessors, (6396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:43,996 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:20:44,003 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@732117e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:20:44,004 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-11-09 06:20:44,013 INFO L276 IsEmpty]: Start isEmpty. Operand has 2413 states, 2245 states have (on average 2.8489977728285076) internal successors, (6396), 2412 states have internal predecessors, (6396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:44,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 06:20:44,020 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:20:44,020 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 06:20:44,021 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 06:20:44,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:20:44,028 INFO L85 PathProgramCache]: Analyzing trace with hash 639002098, now seen corresponding path program 1 times [2024-11-09 06:20:44,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:20:44,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366454040] [2024-11-09 06:20:44,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:44,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:20:44,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:20:44,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:20:44,320 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:20:44,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366454040] [2024-11-09 06:20:44,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366454040] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:20:44,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:20:44,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:20:44,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367926995] [2024-11-09 06:20:44,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:20:44,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:20:44,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:20:44,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:20:44,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:20:44,385 INFO L87 Difference]: Start difference. First operand has 2413 states, 2245 states have (on average 2.8489977728285076) internal successors, (6396), 2412 states have internal predecessors, (6396), 0 states have call successors, (0), 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 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2024-11-09 06:20:44,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:20:44,713 INFO L93 Difference]: Finished difference Result 2413 states and 6396 transitions. [2024-11-09 06:20:44,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:20:44,716 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 [2024-11-09 06:20:44,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:20:44,764 INFO L225 Difference]: With dead ends: 2413 [2024-11-09 06:20:44,765 INFO L226 Difference]: Without dead ends: 2273 [2024-11-09 06:20:44,770 INFO L431 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 [2024-11-09 06:20:44,776 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 130 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:20:44,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 99 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:20:44,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2273 states. [2024-11-09 06:20:44,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2273 to 2273. [2024-11-09 06:20:44,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2273 states, 2131 states have (on average 2.8324730173627404) internal successors, (6036), 2272 states have internal predecessors, (6036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:44,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2273 states to 2273 states and 6036 transitions. [2024-11-09 06:20:44,948 INFO L78 Accepts]: Start accepts. Automaton has 2273 states and 6036 transitions. Word has length 5 [2024-11-09 06:20:44,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:20:44,949 INFO L471 AbstractCegarLoop]: Abstraction has 2273 states and 6036 transitions. [2024-11-09 06:20:44,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2024-11-09 06:20:44,950 INFO L276 IsEmpty]: Start isEmpty. Operand 2273 states and 6036 transitions. [2024-11-09 06:20:44,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 06:20:44,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:20:44,951 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 06:20:44,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:20:44,951 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 06:20:44,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:20:44,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1665770728, now seen corresponding path program 1 times [2024-11-09 06:20:44,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:20:44,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714563932] [2024-11-09 06:20:44,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:44,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:20:44,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:20:45,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:20:45,124 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:20:45,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714563932] [2024-11-09 06:20:45,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714563932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:20:45,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:20:45,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:20:45,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500473074] [2024-11-09 06:20:45,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:20:45,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:20:45,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:20:45,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:20:45,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:20:45,130 INFO L87 Difference]: Start difference. First operand 2273 states and 6036 transitions. Second operand has 4 states, 3 states have (on average 2.0) 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) [2024-11-09 06:20:45,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:20:45,329 INFO L93 Difference]: Finished difference Result 2623 states and 6934 transitions. [2024-11-09 06:20:45,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:20:45,330 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) 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 [2024-11-09 06:20:45,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:20:45,353 INFO L225 Difference]: With dead ends: 2623 [2024-11-09 06:20:45,353 INFO L226 Difference]: Without dead ends: 2553 [2024-11-09 06:20:45,355 INFO L431 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 [2024-11-09 06:20:45,357 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 131 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:20:45,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 99 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:20:45,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2553 states. [2024-11-09 06:20:45,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2553 to 2203. [2024-11-09 06:20:45,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2203 states, 2074 states have (on average 2.823529411764706) internal successors, (5856), 2202 states have internal predecessors, (5856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:45,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2203 states to 2203 states and 5856 transitions. [2024-11-09 06:20:45,471 INFO L78 Accepts]: Start accepts. Automaton has 2203 states and 5856 transitions. Word has length 6 [2024-11-09 06:20:45,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:20:45,472 INFO L471 AbstractCegarLoop]: Abstraction has 2203 states and 5856 transitions. [2024-11-09 06:20:45,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) 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) [2024-11-09 06:20:45,472 INFO L276 IsEmpty]: Start isEmpty. Operand 2203 states and 5856 transitions. [2024-11-09 06:20:45,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 06:20:45,473 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:20:45,473 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:20:45,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:20:45,474 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 06:20:45,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:20:45,474 INFO L85 PathProgramCache]: Analyzing trace with hash -170899942, now seen corresponding path program 1 times [2024-11-09 06:20:45,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:20:45,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309292455] [2024-11-09 06:20:45,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:45,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:20:45,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:20:45,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:20:45,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:20:45,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309292455] [2024-11-09 06:20:45,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309292455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:20:45,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:20:45,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:20:45,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925522183] [2024-11-09 06:20:45,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:20:45,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:20:45,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:20:45,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:20:45,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:20:45,555 INFO L87 Difference]: Start difference. First operand 2203 states and 5856 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2024-11-09 06:20:45,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:20:45,814 INFO L93 Difference]: Finished difference Result 4720 states and 12807 transitions. [2024-11-09 06:20:45,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:20:45,816 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 [2024-11-09 06:20:45,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:20:45,842 INFO L225 Difference]: With dead ends: 4720 [2024-11-09 06:20:45,845 INFO L226 Difference]: Without dead ends: 3211 [2024-11-09 06:20:45,853 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:20:45,855 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 96 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:20:45,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 166 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:20:45,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3211 states. [2024-11-09 06:20:45,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3211 to 2581. [2024-11-09 06:20:45,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2581 states, 2472 states have (on average 2.8155339805825244) internal successors, (6960), 2580 states have internal predecessors, (6960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:45,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2581 states to 2581 states and 6960 transitions. [2024-11-09 06:20:45,968 INFO L78 Accepts]: Start accepts. Automaton has 2581 states and 6960 transitions. Word has length 7 [2024-11-09 06:20:45,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:20:45,969 INFO L471 AbstractCegarLoop]: Abstraction has 2581 states and 6960 transitions. [2024-11-09 06:20:45,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2024-11-09 06:20:45,969 INFO L276 IsEmpty]: Start isEmpty. Operand 2581 states and 6960 transitions. [2024-11-09 06:20:45,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 06:20:45,972 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:20:45,972 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:20:45,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:20:45,973 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 06:20:45,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:20:45,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1002930155, now seen corresponding path program 1 times [2024-11-09 06:20:45,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:20:45,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713768878] [2024-11-09 06:20:45,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:45,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:20:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:20:46,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:20:46,125 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:20:46,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713768878] [2024-11-09 06:20:46,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713768878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:20:46,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:20:46,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:20:46,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59408981] [2024-11-09 06:20:46,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:20:46,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:20:46,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:20:46,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:20:46,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:20:46,127 INFO L87 Difference]: Start difference. First operand 2581 states and 6960 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) [2024-11-09 06:20:46,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:20:46,282 INFO L93 Difference]: Finished difference Result 2896 states and 7772 transitions. [2024-11-09 06:20:46,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:20:46,283 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 [2024-11-09 06:20:46,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:20:46,304 INFO L225 Difference]: With dead ends: 2896 [2024-11-09 06:20:46,305 INFO L226 Difference]: Without dead ends: 2833 [2024-11-09 06:20:46,306 INFO L431 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 [2024-11-09 06:20:46,308 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 123 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:20:46,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 89 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:20:46,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2833 states. [2024-11-09 06:20:46,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2833 to 2518. [2024-11-09 06:20:46,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2518 states, 2419 states have (on average 2.8098387763538653) internal successors, (6797), 2517 states have internal predecessors, (6797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:46,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2518 states to 2518 states and 6797 transitions. [2024-11-09 06:20:46,412 INFO L78 Accepts]: Start accepts. Automaton has 2518 states and 6797 transitions. Word has length 8 [2024-11-09 06:20:46,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:20:46,412 INFO L471 AbstractCegarLoop]: Abstraction has 2518 states and 6797 transitions. [2024-11-09 06:20:46,413 INFO L472 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) [2024-11-09 06:20:46,413 INFO L276 IsEmpty]: Start isEmpty. Operand 2518 states and 6797 transitions. [2024-11-09 06:20:46,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 06:20:46,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:20:46,414 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:20:46,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:20:46,414 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 06:20:46,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:20:46,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1216168698, now seen corresponding path program 1 times [2024-11-09 06:20:46,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:20:46,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165116400] [2024-11-09 06:20:46,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:46,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:20:46,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:20:46,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:20:46,526 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:20:46,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165116400] [2024-11-09 06:20:46,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165116400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:20:46,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:20:46,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:20:46,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654428517] [2024-11-09 06:20:46,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:20:46,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:20:46,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:20:46,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:20:46,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:20:46,528 INFO L87 Difference]: Start difference. First operand 2518 states and 6797 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2024-11-09 06:20:46,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:20:46,754 INFO L93 Difference]: Finished difference Result 3318 states and 8967 transitions. [2024-11-09 06:20:46,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:20:46,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 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 [2024-11-09 06:20:46,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:20:46,810 INFO L225 Difference]: With dead ends: 3318 [2024-11-09 06:20:46,810 INFO L226 Difference]: Without dead ends: 3158 [2024-11-09 06:20:46,812 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:20:46,815 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 165 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:20:46,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 157 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:20:46,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3158 states. [2024-11-09 06:20:46,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3158 to 2918. [2024-11-09 06:20:46,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2918 states, 2829 states have (on average 2.8568398727465536) internal successors, (8082), 2917 states have internal predecessors, (8082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:46,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2918 states to 2918 states and 8082 transitions. [2024-11-09 06:20:46,965 INFO L78 Accepts]: Start accepts. Automaton has 2918 states and 8082 transitions. Word has length 8 [2024-11-09 06:20:46,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:20:46,967 INFO L471 AbstractCegarLoop]: Abstraction has 2918 states and 8082 transitions. [2024-11-09 06:20:46,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2024-11-09 06:20:46,968 INFO L276 IsEmpty]: Start isEmpty. Operand 2918 states and 8082 transitions. [2024-11-09 06:20:46,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 06:20:46,971 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:20:46,971 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:20:46,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 06:20:46,972 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 06:20:46,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:20:46,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1216169723, now seen corresponding path program 1 times [2024-11-09 06:20:46,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:20:46,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071479679] [2024-11-09 06:20:46,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:46,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:20:46,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:20:47,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:20:47,051 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:20:47,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071479679] [2024-11-09 06:20:47,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071479679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:20:47,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:20:47,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:20:47,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236351467] [2024-11-09 06:20:47,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:20:47,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:20:47,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:20:47,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:20:47,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:20:47,054 INFO L87 Difference]: Start difference. First operand 2918 states and 8082 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2024-11-09 06:20:47,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:20:47,254 INFO L93 Difference]: Finished difference Result 4038 states and 11006 transitions. [2024-11-09 06:20:47,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:20:47,255 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 [2024-11-09 06:20:47,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:20:47,290 INFO L225 Difference]: With dead ends: 4038 [2024-11-09 06:20:47,290 INFO L226 Difference]: Without dead ends: 3878 [2024-11-09 06:20:47,293 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:20:47,295 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 94 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:20:47,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 152 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:20:47,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3878 states. [2024-11-09 06:20:47,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3878 to 3238. [2024-11-09 06:20:47,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3238 states, 3149 states have (on average 2.8320101619561764) internal successors, (8918), 3237 states have internal predecessors, (8918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:47,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3238 states to 3238 states and 8918 transitions. [2024-11-09 06:20:47,418 INFO L78 Accepts]: Start accepts. Automaton has 3238 states and 8918 transitions. Word has length 8 [2024-11-09 06:20:47,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:20:47,418 INFO L471 AbstractCegarLoop]: Abstraction has 3238 states and 8918 transitions. [2024-11-09 06:20:47,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2024-11-09 06:20:47,419 INFO L276 IsEmpty]: Start isEmpty. Operand 3238 states and 8918 transitions. [2024-11-09 06:20:47,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 06:20:47,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:20:47,420 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:20:47,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 06:20:47,421 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 06:20:47,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:20:47,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1026094754, now seen corresponding path program 1 times [2024-11-09 06:20:47,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:20:47,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888285402] [2024-11-09 06:20:47,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:47,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:20:47,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:20:47,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:20:47,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:20:47,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888285402] [2024-11-09 06:20:47,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888285402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:20:47,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:20:47,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:20:47,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937775923] [2024-11-09 06:20:47,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:20:47,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:20:47,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:20:47,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:20:47,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:20:47,497 INFO L87 Difference]: Start difference. First operand 3238 states and 8918 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:47,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:20:47,629 INFO L93 Difference]: Finished difference Result 3238 states and 8918 transitions. [2024-11-09 06:20:47,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:20:47,629 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-09 06:20:47,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:20:47,648 INFO L225 Difference]: With dead ends: 3238 [2024-11-09 06:20:47,649 INFO L226 Difference]: Without dead ends: 3157 [2024-11-09 06:20:47,651 INFO L431 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 [2024-11-09 06:20:47,652 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 114 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:20:47,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 86 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:20:47,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3157 states. [2024-11-09 06:20:47,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3157 to 3157. [2024-11-09 06:20:47,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3157 states, 3077 states have (on average 2.8287292817679557) internal successors, (8704), 3156 states have internal predecessors, (8704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:47,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3157 states to 3157 states and 8704 transitions. [2024-11-09 06:20:47,760 INFO L78 Accepts]: Start accepts. Automaton has 3157 states and 8704 transitions. Word has length 9 [2024-11-09 06:20:47,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:20:47,760 INFO L471 AbstractCegarLoop]: Abstraction has 3157 states and 8704 transitions. [2024-11-09 06:20:47,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:47,761 INFO L276 IsEmpty]: Start isEmpty. Operand 3157 states and 8704 transitions. [2024-11-09 06:20:47,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 06:20:47,762 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:20:47,762 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:20:47,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 06:20:47,762 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 06:20:47,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:20:47,763 INFO L85 PathProgramCache]: Analyzing trace with hash -953475303, now seen corresponding path program 1 times [2024-11-09 06:20:47,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:20:47,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442070271] [2024-11-09 06:20:47,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:47,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:20:47,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:20:47,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:20:47,878 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:20:47,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442070271] [2024-11-09 06:20:47,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442070271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:20:47,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:20:47,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:20:47,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047118103] [2024-11-09 06:20:47,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:20:47,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:20:47,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:20:47,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:20:47,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:20:47,880 INFO L87 Difference]: Start difference. First operand 3157 states and 8704 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:48,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:20:48,275 INFO L93 Difference]: Finished difference Result 3703 states and 10208 transitions. [2024-11-09 06:20:48,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:20:48,276 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-09 06:20:48,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:20:48,298 INFO L225 Difference]: With dead ends: 3703 [2024-11-09 06:20:48,298 INFO L226 Difference]: Without dead ends: 3541 [2024-11-09 06:20:48,300 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-09 06:20:48,301 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 268 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:20:48,301 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 294 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:20:48,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3541 states. [2024-11-09 06:20:48,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3541 to 3463. [2024-11-09 06:20:48,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3463 states, 3392 states have (on average 2.823997641509434) internal successors, (9579), 3462 states have internal predecessors, (9579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:48,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3463 states to 3463 states and 9579 transitions. [2024-11-09 06:20:48,435 INFO L78 Accepts]: Start accepts. Automaton has 3463 states and 9579 transitions. Word has length 9 [2024-11-09 06:20:48,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:20:48,436 INFO L471 AbstractCegarLoop]: Abstraction has 3463 states and 9579 transitions. [2024-11-09 06:20:48,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:48,436 INFO L276 IsEmpty]: Start isEmpty. Operand 3463 states and 9579 transitions. [2024-11-09 06:20:48,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 06:20:48,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:20:48,438 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:20:48,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 06:20:48,439 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 06:20:48,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:20:48,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1744166569, now seen corresponding path program 1 times [2024-11-09 06:20:48,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:20:48,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401540661] [2024-11-09 06:20:48,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:48,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:20:48,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:20:48,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:20:48,551 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:20:48,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401540661] [2024-11-09 06:20:48,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401540661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:20:48,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:20:48,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:20:48,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592888349] [2024-11-09 06:20:48,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:20:48,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:20:48,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:20:48,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:20:48,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:20:48,553 INFO L87 Difference]: Start difference. First operand 3463 states and 9579 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:48,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:20:48,795 INFO L93 Difference]: Finished difference Result 3819 states and 10434 transitions. [2024-11-09 06:20:48,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:20:48,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2024-11-09 06:20:48,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:20:48,819 INFO L225 Difference]: With dead ends: 3819 [2024-11-09 06:20:48,819 INFO L226 Difference]: Without dead ends: 3641 [2024-11-09 06:20:48,821 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:20:48,823 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 151 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:20:48,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 145 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:20:48,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3641 states. [2024-11-09 06:20:48,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3641 to 3552. [2024-11-09 06:20:48,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3552 states, 3489 states have (on average 2.8131269704786472) internal successors, (9815), 3551 states have internal predecessors, (9815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:48,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3552 states to 3552 states and 9815 transitions. [2024-11-09 06:20:48,937 INFO L78 Accepts]: Start accepts. Automaton has 3552 states and 9815 transitions. Word has length 10 [2024-11-09 06:20:48,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:20:48,938 INFO L471 AbstractCegarLoop]: Abstraction has 3552 states and 9815 transitions. [2024-11-09 06:20:48,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:48,938 INFO L276 IsEmpty]: Start isEmpty. Operand 3552 states and 9815 transitions. [2024-11-09 06:20:48,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 06:20:48,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:20:48,940 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:20:48,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 06:20:48,940 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 06:20:48,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:20:48,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1744165544, now seen corresponding path program 1 times [2024-11-09 06:20:48,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:20:48,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347259790] [2024-11-09 06:20:48,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:48,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:20:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:20:48,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:20:48,990 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:20:48,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347259790] [2024-11-09 06:20:48,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347259790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:20:48,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:20:48,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:20:48,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900832198] [2024-11-09 06:20:48,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:20:48,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:20:48,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:20:48,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:20:48,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:20:48,992 INFO L87 Difference]: Start difference. First operand 3552 states and 9815 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:49,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:20:49,185 INFO L93 Difference]: Finished difference Result 4264 states and 11516 transitions. [2024-11-09 06:20:49,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:20:49,185 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2024-11-09 06:20:49,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:20:49,207 INFO L225 Difference]: With dead ends: 4264 [2024-11-09 06:20:49,208 INFO L226 Difference]: Without dead ends: 4086 [2024-11-09 06:20:49,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:20:49,211 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 104 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:20:49,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 115 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:20:49,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4086 states. [2024-11-09 06:20:49,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4086 to 3552. [2024-11-09 06:20:49,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3552 states, 3489 states have (on average 2.762109486959014) internal successors, (9637), 3551 states have internal predecessors, (9637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:49,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3552 states to 3552 states and 9637 transitions. [2024-11-09 06:20:49,325 INFO L78 Accepts]: Start accepts. Automaton has 3552 states and 9637 transitions. Word has length 10 [2024-11-09 06:20:49,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:20:49,325 INFO L471 AbstractCegarLoop]: Abstraction has 3552 states and 9637 transitions. [2024-11-09 06:20:49,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:49,326 INFO L276 IsEmpty]: Start isEmpty. Operand 3552 states and 9637 transitions. [2024-11-09 06:20:49,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 06:20:49,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:20:49,327 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:20:49,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 06:20:49,327 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 06:20:49,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:20:49,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1454354496, now seen corresponding path program 1 times [2024-11-09 06:20:49,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:20:49,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167575401] [2024-11-09 06:20:49,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:49,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:20:49,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:20:49,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:20:49,389 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:20:49,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167575401] [2024-11-09 06:20:49,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167575401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:20:49,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:20:49,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:20:49,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705039239] [2024-11-09 06:20:49,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:20:49,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:20:49,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:20:49,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:20:49,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:20:49,391 INFO L87 Difference]: Start difference. First operand 3552 states and 9637 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:49,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:20:49,678 INFO L93 Difference]: Finished difference Result 6066 states and 16377 transitions. [2024-11-09 06:20:49,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:20:49,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2024-11-09 06:20:49,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:20:49,698 INFO L225 Difference]: With dead ends: 6066 [2024-11-09 06:20:49,699 INFO L226 Difference]: Without dead ends: 3316 [2024-11-09 06:20:49,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:20:49,705 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 132 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:20:49,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 253 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:20:49,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3316 states. [2024-11-09 06:20:49,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3316 to 2836. [2024-11-09 06:20:49,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2836 states, 2797 states have (on average 2.704326063639614) internal successors, (7564), 2835 states have internal predecessors, (7564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:49,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2836 states to 2836 states and 7564 transitions. [2024-11-09 06:20:49,836 INFO L78 Accepts]: Start accepts. Automaton has 2836 states and 7564 transitions. Word has length 10 [2024-11-09 06:20:49,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:20:49,837 INFO L471 AbstractCegarLoop]: Abstraction has 2836 states and 7564 transitions. [2024-11-09 06:20:49,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:49,837 INFO L276 IsEmpty]: Start isEmpty. Operand 2836 states and 7564 transitions. [2024-11-09 06:20:49,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 06:20:49,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:20:49,839 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:20:49,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 06:20:49,839 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 06:20:49,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:20:49,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1765411969, now seen corresponding path program 1 times [2024-11-09 06:20:49,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:20:49,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174080778] [2024-11-09 06:20:49,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:49,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:20:49,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:20:49,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:20:49,961 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:20:49,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174080778] [2024-11-09 06:20:49,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174080778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:20:49,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:20:49,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:20:49,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428780632] [2024-11-09 06:20:49,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:20:49,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:20:49,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:20:49,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:20:49,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:20:49,964 INFO L87 Difference]: Start difference. First operand 2836 states and 7564 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:50,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:20:50,340 INFO L93 Difference]: Finished difference Result 3191 states and 8555 transitions. [2024-11-09 06:20:50,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:20:50,341 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-09 06:20:50,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:20:50,358 INFO L225 Difference]: With dead ends: 3191 [2024-11-09 06:20:50,358 INFO L226 Difference]: Without dead ends: 3044 [2024-11-09 06:20:50,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-09 06:20:50,361 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 236 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:20:50,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 244 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:20:50,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3044 states. [2024-11-09 06:20:50,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3044 to 2973. [2024-11-09 06:20:50,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2973 states, 2939 states have (on average 2.717250765566519) internal successors, (7986), 2972 states have internal predecessors, (7986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:50,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2973 states to 2973 states and 7986 transitions. [2024-11-09 06:20:50,449 INFO L78 Accepts]: Start accepts. Automaton has 2973 states and 7986 transitions. Word has length 11 [2024-11-09 06:20:50,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:20:50,449 INFO L471 AbstractCegarLoop]: Abstraction has 2973 states and 7986 transitions. [2024-11-09 06:20:50,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:50,449 INFO L276 IsEmpty]: Start isEmpty. Operand 2973 states and 7986 transitions. [2024-11-09 06:20:50,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 06:20:50,451 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:20:50,451 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:20:50,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 06:20:50,452 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 06:20:50,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:20:50,452 INFO L85 PathProgramCache]: Analyzing trace with hash -159485955, now seen corresponding path program 1 times [2024-11-09 06:20:50,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:20:50,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340445497] [2024-11-09 06:20:50,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:50,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:20:50,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:20:50,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:20:50,515 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:20:50,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340445497] [2024-11-09 06:20:50,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340445497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:20:50,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:20:50,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:20:50,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816649410] [2024-11-09 06:20:50,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:20:50,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:20:50,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:20:50,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:20:50,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:20:50,519 INFO L87 Difference]: Start difference. First operand 2973 states and 7986 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:50,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:20:50,757 INFO L93 Difference]: Finished difference Result 3399 states and 9091 transitions. [2024-11-09 06:20:50,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:20:50,758 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-09 06:20:50,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:20:50,772 INFO L225 Difference]: With dead ends: 3399 [2024-11-09 06:20:50,773 INFO L226 Difference]: Without dead ends: 2973 [2024-11-09 06:20:50,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:20:50,775 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 120 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:20:50,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 220 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:20:50,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2973 states. [2024-11-09 06:20:50,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2973 to 2547. [2024-11-09 06:20:50,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2547 states, 2523 states have (on average 2.7253269916765754) internal successors, (6876), 2546 states have internal predecessors, (6876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:50,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2547 states to 2547 states and 6876 transitions. [2024-11-09 06:20:50,873 INFO L78 Accepts]: Start accepts. Automaton has 2547 states and 6876 transitions. Word has length 12 [2024-11-09 06:20:50,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:20:50,873 INFO L471 AbstractCegarLoop]: Abstraction has 2547 states and 6876 transitions. [2024-11-09 06:20:50,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:50,874 INFO L276 IsEmpty]: Start isEmpty. Operand 2547 states and 6876 transitions. [2024-11-09 06:20:50,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 06:20:50,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:20:50,875 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:20:50,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 06:20:50,875 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 06:20:50,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:20:50,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1931664096, now seen corresponding path program 1 times [2024-11-09 06:20:50,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:20:50,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771664402] [2024-11-09 06:20:50,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:50,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:20:50,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:20:50,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:20:50,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:20:50,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771664402] [2024-11-09 06:20:50,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771664402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:20:50,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:20:50,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:20:50,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216941752] [2024-11-09 06:20:50,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:20:50,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:20:50,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:20:50,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:20:50,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:20:50,928 INFO L87 Difference]: Start difference. First operand 2547 states and 6876 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:51,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:20:51,038 INFO L93 Difference]: Finished difference Result 2763 states and 7437 transitions. [2024-11-09 06:20:51,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:20:51,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-09 06:20:51,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:20:51,053 INFO L225 Difference]: With dead ends: 2763 [2024-11-09 06:20:51,053 INFO L226 Difference]: Without dead ends: 2691 [2024-11-09 06:20:51,055 INFO L431 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 [2024-11-09 06:20:51,055 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 101 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:20:51,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 69 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:20:51,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2024-11-09 06:20:51,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 2475. [2024-11-09 06:20:51,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2475 states, 2456 states have (on average 2.7235342019543975) internal successors, (6689), 2474 states have internal predecessors, (6689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:51,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2475 states to 2475 states and 6689 transitions. [2024-11-09 06:20:51,119 INFO L78 Accepts]: Start accepts. Automaton has 2475 states and 6689 transitions. Word has length 12 [2024-11-09 06:20:51,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:20:51,120 INFO L471 AbstractCegarLoop]: Abstraction has 2475 states and 6689 transitions. [2024-11-09 06:20:51,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:51,120 INFO L276 IsEmpty]: Start isEmpty. Operand 2475 states and 6689 transitions. [2024-11-09 06:20:51,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 06:20:51,121 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:20:51,121 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:20:51,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 06:20:51,122 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 06:20:51,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:20:51,122 INFO L85 PathProgramCache]: Analyzing trace with hash -247986208, now seen corresponding path program 1 times [2024-11-09 06:20:51,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:20:51,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080255041] [2024-11-09 06:20:51,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:51,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:20:51,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:20:51,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:20:51,185 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:20:51,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080255041] [2024-11-09 06:20:51,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080255041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:20:51,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:20:51,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:20:51,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391162727] [2024-11-09 06:20:51,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:20:51,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:20:51,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:20:51,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:20:51,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:20:51,187 INFO L87 Difference]: Start difference. First operand 2475 states and 6689 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:51,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:20:51,290 INFO L93 Difference]: Finished difference Result 2475 states and 6689 transitions. [2024-11-09 06:20:51,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:20:51,290 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 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 [2024-11-09 06:20:51,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:20:51,304 INFO L225 Difference]: With dead ends: 2475 [2024-11-09 06:20:51,304 INFO L226 Difference]: Without dead ends: 2403 [2024-11-09 06:20:51,306 INFO L431 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 [2024-11-09 06:20:51,307 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 96 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:20:51,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 69 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:20:51,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2403 states. [2024-11-09 06:20:51,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2403 to 2403. [2024-11-09 06:20:51,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2403 states, 2389 states have (on average 2.7216408539137715) internal successors, (6502), 2402 states have internal predecessors, (6502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:51,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2403 states to 2403 states and 6502 transitions. [2024-11-09 06:20:51,365 INFO L78 Accepts]: Start accepts. Automaton has 2403 states and 6502 transitions. Word has length 13 [2024-11-09 06:20:51,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:20:51,366 INFO L471 AbstractCegarLoop]: Abstraction has 2403 states and 6502 transitions. [2024-11-09 06:20:51,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:51,366 INFO L276 IsEmpty]: Start isEmpty. Operand 2403 states and 6502 transitions. [2024-11-09 06:20:51,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 06:20:51,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:20:51,367 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:20:51,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 06:20:51,368 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 06:20:51,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:20:51,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1514185725, now seen corresponding path program 1 times [2024-11-09 06:20:51,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:20:51,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010108442] [2024-11-09 06:20:51,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:51,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:20:51,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:20:51,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:20:51,411 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:20:51,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010108442] [2024-11-09 06:20:51,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010108442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:20:51,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:20:51,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:20:51,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293305117] [2024-11-09 06:20:51,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:20:51,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:20:51,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:20:51,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:20:51,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:20:51,415 INFO L87 Difference]: Start difference. First operand 2403 states and 6502 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:51,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:20:51,524 INFO L93 Difference]: Finished difference Result 2604 states and 7027 transitions. [2024-11-09 06:20:51,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:20:51,524 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-09 06:20:51,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:20:51,538 INFO L225 Difference]: With dead ends: 2604 [2024-11-09 06:20:51,538 INFO L226 Difference]: Without dead ends: 2537 [2024-11-09 06:20:51,540 INFO L431 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 [2024-11-09 06:20:51,540 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 94 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:20:51,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 63 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:20:51,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2537 states. [2024-11-09 06:20:51,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2537 to 2336. [2024-11-09 06:20:51,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 2325 states have (on average 2.721290322580645) internal successors, (6327), 2335 states have internal predecessors, (6327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:51,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 6327 transitions. [2024-11-09 06:20:51,614 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 6327 transitions. Word has length 14 [2024-11-09 06:20:51,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:20:51,615 INFO L471 AbstractCegarLoop]: Abstraction has 2336 states and 6327 transitions. [2024-11-09 06:20:51,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:51,615 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 6327 transitions. [2024-11-09 06:20:51,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 06:20:51,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:20:51,617 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:20:51,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 06:20:51,617 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 06:20:51,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:20:51,618 INFO L85 PathProgramCache]: Analyzing trace with hash 902361858, now seen corresponding path program 1 times [2024-11-09 06:20:51,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:20:51,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864989746] [2024-11-09 06:20:51,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:51,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:20:51,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:20:51,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:20:51,681 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:20:51,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864989746] [2024-11-09 06:20:51,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864989746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:20:51,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:20:51,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:20:51,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537474437] [2024-11-09 06:20:51,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:20:51,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:20:51,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:20:51,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:20:51,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:20:51,684 INFO L87 Difference]: Start difference. First operand 2336 states and 6327 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:51,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:20:51,863 INFO L93 Difference]: Finished difference Result 2476 states and 6691 transitions. [2024-11-09 06:20:51,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:20:51,864 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-09 06:20:51,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:20:51,877 INFO L225 Difference]: With dead ends: 2476 [2024-11-09 06:20:51,877 INFO L226 Difference]: Without dead ends: 2390 [2024-11-09 06:20:51,878 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:20:51,879 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 125 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:20:51,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 117 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:20:51,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2024-11-09 06:20:51,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 2102. [2024-11-09 06:20:51,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2102 states, 2095 states have (on average 2.6954653937947493) internal successors, (5647), 2101 states have internal predecessors, (5647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:51,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2102 states to 2102 states and 5647 transitions. [2024-11-09 06:20:51,934 INFO L78 Accepts]: Start accepts. Automaton has 2102 states and 5647 transitions. Word has length 14 [2024-11-09 06:20:51,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:20:51,934 INFO L471 AbstractCegarLoop]: Abstraction has 2102 states and 5647 transitions. [2024-11-09 06:20:51,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:51,935 INFO L276 IsEmpty]: Start isEmpty. Operand 2102 states and 5647 transitions. [2024-11-09 06:20:51,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 06:20:51,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:20:51,936 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:20:51,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 06:20:51,937 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 06:20:51,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:20:51,937 INFO L85 PathProgramCache]: Analyzing trace with hash -304913784, now seen corresponding path program 1 times [2024-11-09 06:20:51,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:20:51,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944278079] [2024-11-09 06:20:51,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:51,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:20:51,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:20:51,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:20:51,983 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:20:51,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944278079] [2024-11-09 06:20:51,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944278079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:20:51,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:20:51,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:20:51,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454708647] [2024-11-09 06:20:51,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:20:51,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:20:51,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:20:51,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:20:51,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:20:51,985 INFO L87 Difference]: Start difference. First operand 2102 states and 5647 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:52,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:20:52,090 INFO L93 Difference]: Finished difference Result 2102 states and 5647 transitions. [2024-11-09 06:20:52,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:20:52,090 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-09 06:20:52,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:20:52,101 INFO L225 Difference]: With dead ends: 2102 [2024-11-09 06:20:52,101 INFO L226 Difference]: Without dead ends: 2041 [2024-11-09 06:20:52,102 INFO L431 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 [2024-11-09 06:20:52,103 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 87 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:20:52,103 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 60 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:20:52,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2041 states. [2024-11-09 06:20:52,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2041 to 2041. [2024-11-09 06:20:52,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2041 states, 2036 states have (on average 2.6959724950884087) internal successors, (5489), 2040 states have internal predecessors, (5489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:52,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2041 states to 2041 states and 5489 transitions. [2024-11-09 06:20:52,153 INFO L78 Accepts]: Start accepts. Automaton has 2041 states and 5489 transitions. Word has length 15 [2024-11-09 06:20:52,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:20:52,154 INFO L471 AbstractCegarLoop]: Abstraction has 2041 states and 5489 transitions. [2024-11-09 06:20:52,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:52,154 INFO L276 IsEmpty]: Start isEmpty. Operand 2041 states and 5489 transitions. [2024-11-09 06:20:52,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 06:20:52,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:20:52,156 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:20:52,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 06:20:52,156 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 06:20:52,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:20:52,156 INFO L85 PathProgramCache]: Analyzing trace with hash -2091552733, now seen corresponding path program 1 times [2024-11-09 06:20:52,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:20:52,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918699845] [2024-11-09 06:20:52,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:52,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:20:52,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:20:52,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:20:52,249 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:20:52,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918699845] [2024-11-09 06:20:52,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918699845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:20:52,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:20:52,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:20:52,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187229525] [2024-11-09 06:20:52,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:20:52,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:20:52,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:20:52,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:20:52,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:20:52,251 INFO L87 Difference]: Start difference. First operand 2041 states and 5489 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:52,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:20:52,625 INFO L93 Difference]: Finished difference Result 2245 states and 6020 transitions. [2024-11-09 06:20:52,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:20:52,626 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-09 06:20:52,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:20:52,643 INFO L225 Difference]: With dead ends: 2245 [2024-11-09 06:20:52,643 INFO L226 Difference]: Without dead ends: 2081 [2024-11-09 06:20:52,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-09 06:20:52,645 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 156 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:20:52,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 264 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:20:52,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2081 states. [2024-11-09 06:20:52,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2081 to 1697. [2024-11-09 06:20:52,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1697 states, 1695 states have (on average 2.6837758112094394) internal successors, (4549), 1696 states have internal predecessors, (4549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:52,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 4549 transitions. [2024-11-09 06:20:52,692 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 4549 transitions. Word has length 15 [2024-11-09 06:20:52,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:20:52,693 INFO L471 AbstractCegarLoop]: Abstraction has 1697 states and 4549 transitions. [2024-11-09 06:20:52,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:52,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 4549 transitions. [2024-11-09 06:20:52,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 06:20:52,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:20:52,697 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:20:52,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 06:20:52,697 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 06:20:52,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:20:52,698 INFO L85 PathProgramCache]: Analyzing trace with hash -862392961, now seen corresponding path program 1 times [2024-11-09 06:20:52,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:20:52,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898604619] [2024-11-09 06:20:52,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:52,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:20:52,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:20:52,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:20:52,788 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:20:52,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898604619] [2024-11-09 06:20:52,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898604619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:20:52,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:20:52,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:20:52,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31149241] [2024-11-09 06:20:52,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:20:52,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:20:52,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:20:52,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:20:52,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:20:52,790 INFO L87 Difference]: Start difference. First operand 1697 states and 4549 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:52,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:20:52,961 INFO L93 Difference]: Finished difference Result 1803 states and 4825 transitions. [2024-11-09 06:20:52,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:20:52,962 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 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 16 [2024-11-09 06:20:52,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:20:52,971 INFO L225 Difference]: With dead ends: 1803 [2024-11-09 06:20:52,971 INFO L226 Difference]: Without dead ends: 1538 [2024-11-09 06:20:52,972 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:20:52,973 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 118 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:20:52,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 82 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:20:52,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1538 states. [2024-11-09 06:20:52,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1538 to 1220. [2024-11-09 06:20:52,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1220 states, 1219 states have (on average 2.6694011484823625) internal successors, (3254), 1219 states have internal predecessors, (3254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:53,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 3254 transitions. [2024-11-09 06:20:53,007 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 3254 transitions. Word has length 16 [2024-11-09 06:20:53,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:20:53,007 INFO L471 AbstractCegarLoop]: Abstraction has 1220 states and 3254 transitions. [2024-11-09 06:20:53,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:53,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 3254 transitions. [2024-11-09 06:20:53,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 06:20:53,010 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:20:53,010 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:20:53,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 06:20:53,010 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 06:20:53,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:20:53,010 INFO L85 PathProgramCache]: Analyzing trace with hash -964377237, now seen corresponding path program 1 times [2024-11-09 06:20:53,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:20:53,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72164712] [2024-11-09 06:20:53,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:53,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:20:53,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:20:53,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:20:53,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:20:53,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72164712] [2024-11-09 06:20:53,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72164712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:20:53,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:20:53,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:20:53,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452743673] [2024-11-09 06:20:53,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:20:53,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:20:53,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:20:53,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:20:53,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:20:53,138 INFO L87 Difference]: Start difference. First operand 1220 states and 3254 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:53,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:20:53,455 INFO L93 Difference]: Finished difference Result 1379 states and 3668 transitions. [2024-11-09 06:20:53,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:20:53,455 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2024-11-09 06:20:53,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:20:53,460 INFO L225 Difference]: With dead ends: 1379 [2024-11-09 06:20:53,460 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 06:20:53,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-09 06:20:53,463 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 132 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:20:53,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 234 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:20:53,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 06:20:53,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 06:20:53,465 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) [2024-11-09 06:20:53,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 06:20:53,469 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2024-11-09 06:20:53,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:20:53,469 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 06:20:53,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:20:53,469 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 06:20:53,470 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 06:20:53,472 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 50 remaining) [2024-11-09 06:20:53,473 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 50 remaining) [2024-11-09 06:20:53,473 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 50 remaining) [2024-11-09 06:20:53,473 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 50 remaining) [2024-11-09 06:20:53,473 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 50 remaining) [2024-11-09 06:20:53,474 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 50 remaining) [2024-11-09 06:20:53,474 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 50 remaining) [2024-11-09 06:20:53,474 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 50 remaining) [2024-11-09 06:20:53,474 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 50 remaining) [2024-11-09 06:20:53,474 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 50 remaining) [2024-11-09 06:20:53,474 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 50 remaining) [2024-11-09 06:20:53,475 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 50 remaining) [2024-11-09 06:20:53,475 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 50 remaining) [2024-11-09 06:20:53,475 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 50 remaining) [2024-11-09 06:20:53,475 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 50 remaining) [2024-11-09 06:20:53,475 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 50 remaining) [2024-11-09 06:20:53,475 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 50 remaining) [2024-11-09 06:20:53,476 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 50 remaining) [2024-11-09 06:20:53,476 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 50 remaining) [2024-11-09 06:20:53,476 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 50 remaining) [2024-11-09 06:20:53,476 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 50 remaining) [2024-11-09 06:20:53,476 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 50 remaining) [2024-11-09 06:20:53,476 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 50 remaining) [2024-11-09 06:20:53,476 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 50 remaining) [2024-11-09 06:20:53,476 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 50 remaining) [2024-11-09 06:20:53,477 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 50 remaining) [2024-11-09 06:20:53,477 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 50 remaining) [2024-11-09 06:20:53,477 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 50 remaining) [2024-11-09 06:20:53,477 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 50 remaining) [2024-11-09 06:20:53,477 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 50 remaining) [2024-11-09 06:20:53,478 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 50 remaining) [2024-11-09 06:20:53,478 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 50 remaining) [2024-11-09 06:20:53,478 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 50 remaining) [2024-11-09 06:20:53,478 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 50 remaining) [2024-11-09 06:20:53,478 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 50 remaining) [2024-11-09 06:20:53,479 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 50 remaining) [2024-11-09 06:20:53,479 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 50 remaining) [2024-11-09 06:20:53,479 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 50 remaining) [2024-11-09 06:20:53,479 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 50 remaining) [2024-11-09 06:20:53,479 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 50 remaining) [2024-11-09 06:20:53,479 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 50 remaining) [2024-11-09 06:20:53,480 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 50 remaining) [2024-11-09 06:20:53,480 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 50 remaining) [2024-11-09 06:20:53,480 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 50 remaining) [2024-11-09 06:20:53,480 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 50 remaining) [2024-11-09 06:20:53,480 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 50 remaining) [2024-11-09 06:20:53,480 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 50 remaining) [2024-11-09 06:20:53,481 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 50 remaining) [2024-11-09 06:20:53,481 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 50 remaining) [2024-11-09 06:20:53,481 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 50 remaining) [2024-11-09 06:20:53,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 06:20:53,485 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:20:53,490 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 06:20:53,490 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:20:53,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:20:53 BasicIcfg [2024-11-09 06:20:53,494 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:20:53,494 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:20:53,495 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:20:53,495 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:20:53,495 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:20:43" (3/4) ... [2024-11-09 06:20:53,497 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 06:20:53,500 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-09 06:20:53,501 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-09 06:20:53,505 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 76 nodes and edges [2024-11-09 06:20:53,506 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-09 06:20:53,506 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-09 06:20:53,506 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 06:20:53,602 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77163347-5def-4587-b78e-a9cf90857e29/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 06:20:53,603 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77163347-5def-4587-b78e-a9cf90857e29/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 06:20:53,603 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:20:53,604 INFO L158 Benchmark]: Toolchain (without parser) took 11557.80ms. Allocated memory was 142.6MB in the beginning and 272.6MB in the end (delta: 130.0MB). Free memory was 104.2MB in the beginning and 110.4MB in the end (delta: -6.2MB). Peak memory consumption was 125.9MB. Max. memory is 16.1GB. [2024-11-09 06:20:53,605 INFO L158 Benchmark]: CDTParser took 4.37ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 115.7MB in the end (delta: 161.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:20:53,605 INFO L158 Benchmark]: CACSL2BoogieTranslator took 325.64ms. Allocated memory is still 142.6MB. Free memory was 104.2MB in the beginning and 90.6MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 06:20:53,605 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.27ms. Allocated memory is still 142.6MB. Free memory was 90.6MB in the beginning and 88.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:20:53,606 INFO L158 Benchmark]: Boogie Preprocessor took 27.08ms. Allocated memory is still 142.6MB. Free memory was 88.4MB in the beginning and 86.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:20:53,606 INFO L158 Benchmark]: RCFGBuilder took 1141.61ms. Allocated memory was 142.6MB in the beginning and 180.4MB in the end (delta: 37.7MB). Free memory was 86.8MB in the beginning and 126.9MB in the end (delta: -40.1MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. [2024-11-09 06:20:53,607 INFO L158 Benchmark]: TraceAbstraction took 9889.63ms. Allocated memory was 180.4MB in the beginning and 272.6MB in the end (delta: 92.3MB). Free memory was 126.9MB in the beginning and 115.6MB in the end (delta: 11.3MB). Peak memory consumption was 103.6MB. Max. memory is 16.1GB. [2024-11-09 06:20:53,607 INFO L158 Benchmark]: Witness Printer took 108.97ms. Allocated memory is still 272.6MB. Free memory was 115.6MB in the beginning and 110.4MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 06:20:53,609 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 4.37ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 115.7MB in the end (delta: 161.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 325.64ms. Allocated memory is still 142.6MB. Free memory was 104.2MB in the beginning and 90.6MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.27ms. Allocated memory is still 142.6MB. Free memory was 90.6MB in the beginning and 88.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.08ms. Allocated memory is still 142.6MB. Free memory was 88.4MB in the beginning and 86.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1141.61ms. Allocated memory was 142.6MB in the beginning and 180.4MB in the end (delta: 37.7MB). Free memory was 86.8MB in the beginning and 126.9MB in the end (delta: -40.1MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. * TraceAbstraction took 9889.63ms. Allocated memory was 180.4MB in the beginning and 272.6MB in the end (delta: 92.3MB). Free memory was 126.9MB in the beginning and 115.6MB in the end (delta: 11.3MB). Peak memory consumption was 103.6MB. Max. memory is 16.1GB. * Witness Printer took 108.97ms. Allocated memory is still 272.6MB. Free memory was 115.6MB in the beginning and 110.4MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: 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, 147 locations, 50 error locations. Started 1 CEGAR loops. OverallTime: 9.7s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2773 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2773 mSDsluCounter, 3077 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1537 mSDsCounter, 99 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3101 IncrementalHoareTripleChecker+Invalid, 3200 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 99 mSolverCounterUnsat, 1540 mSDtfsCounter, 3101 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3552occurred in iteration=9, InterpolantAutomatonStates: 108, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 21 MinimizatonAttempts, 5260 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 229 NumberOfCodeBlocks, 229 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 208 ConstructedInterpolants, 0 QuantifiedInterpolants, 862 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 24 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-09 06:20:53,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77163347-5def-4587-b78e-a9cf90857e29/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE