./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4d17ed8dd7de3007f02b2c3df3a75e1fbb5469b0133c538c149df8a118a565d0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:30:45,054 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:30:45,116 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 03:30:45,120 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:30:45,121 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:30:45,143 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:30:45,144 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:30:45,144 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:30:45,145 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:30:45,146 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:30:45,146 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:30:45,147 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:30:45,147 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:30:45,148 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:30:45,148 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:30:45,149 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:30:45,150 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:30:45,150 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:30:45,151 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:30:45,151 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:30:45,152 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:30:45,152 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:30:45,153 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:30:45,153 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:30:45,154 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 03:30:45,154 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:30:45,154 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:30:45,155 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:30:45,155 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:30:45,156 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:30:45,156 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:30:45,157 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:30:45,157 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:30:45,157 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:30:45,157 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:30:45,158 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:30:45,158 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:30:45,158 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:30:45,158 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:30:45,158 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:30:45,159 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:30:45,159 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:30:45,159 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:30:45,159 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:30:45,159 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d17ed8dd7de3007f02b2c3df3a75e1fbb5469b0133c538c149df8a118a565d0 [2023-11-29 03:30:45,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:30:45,412 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:30:45,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:30:45,416 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:30:45,417 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:30:45,418 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound100.c [2023-11-29 03:30:48,256 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:30:48,446 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:30:48,447 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound100.c [2023-11-29 03:30:48,456 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/data/fde8c44ae/028c38e50f674099ac52af77ec5fc5b1/FLAG84eb3fbf1 [2023-11-29 03:30:48,472 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/data/fde8c44ae/028c38e50f674099ac52af77ec5fc5b1 [2023-11-29 03:30:48,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:30:48,476 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:30:48,478 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:30:48,478 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:30:48,483 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:30:48,484 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:30:48" (1/1) ... [2023-11-29 03:30:48,486 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40252067 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:48, skipping insertion in model container [2023-11-29 03:30:48,486 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:30:48" (1/1) ... [2023-11-29 03:30:48,510 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:30:48,687 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:30:48,699 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:30:48,721 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:30:48,736 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:30:48,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:48 WrapperNode [2023-11-29 03:30:48,737 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:30:48,738 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:30:48,738 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:30:48,738 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:30:48,746 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:48" (1/1) ... [2023-11-29 03:30:48,753 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:48" (1/1) ... [2023-11-29 03:30:48,777 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 110 [2023-11-29 03:30:48,778 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:30:48,779 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:30:48,779 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:30:48,779 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:30:48,791 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:48" (1/1) ... [2023-11-29 03:30:48,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:48" (1/1) ... [2023-11-29 03:30:48,793 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:48" (1/1) ... [2023-11-29 03:30:48,806 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 03:30:48,806 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:48" (1/1) ... [2023-11-29 03:30:48,806 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:48" (1/1) ... [2023-11-29 03:30:48,810 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:48" (1/1) ... [2023-11-29 03:30:48,813 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:48" (1/1) ... [2023-11-29 03:30:48,815 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:48" (1/1) ... [2023-11-29 03:30:48,816 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:48" (1/1) ... [2023-11-29 03:30:48,818 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:30:48,819 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:30:48,819 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:30:48,819 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:30:48,820 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:48" (1/1) ... [2023-11-29 03:30:48,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:30:48,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:48,849 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:30:48,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:30:48,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:30:48,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 03:30:48,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:30:48,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:30:48,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 03:30:48,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 03:30:48,959 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:30:48,962 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:30:49,293 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:30:49,318 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:30:49,318 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 03:30:49,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:30:49 BoogieIcfgContainer [2023-11-29 03:30:49,319 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:30:49,322 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:30:49,322 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:30:49,326 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:30:49,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:30:48" (1/3) ... [2023-11-29 03:30:49,327 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58734ec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:30:49, skipping insertion in model container [2023-11-29 03:30:49,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:48" (2/3) ... [2023-11-29 03:30:49,327 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58734ec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:30:49, skipping insertion in model container [2023-11-29 03:30:49,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:30:49" (3/3) ... [2023-11-29 03:30:49,329 INFO L112 eAbstractionObserver]: Analyzing ICFG prod4br-ll_unwindbound100.c [2023-11-29 03:30:49,348 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:30:49,348 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2023-11-29 03:30:49,389 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:30:49,395 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@cf4774, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:30:49,395 INFO L358 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2023-11-29 03:30:49,400 INFO L276 IsEmpty]: Start isEmpty. Operand has 106 states, 57 states have (on average 1.912280701754386) internal successors, (109), 101 states have internal predecessors, (109), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 03:30:49,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 03:30:49,406 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:49,407 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 03:30:49,408 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:30:49,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:49,414 INFO L85 PathProgramCache]: Analyzing trace with hash 175630532, now seen corresponding path program 1 times [2023-11-29 03:30:49,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:49,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929451142] [2023-11-29 03:30:49,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:49,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:49,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:49,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:49,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929451142] [2023-11-29 03:30:49,542 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 03:30:49,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000859527] [2023-11-29 03:30:49,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:49,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:49,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:49,547 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:49,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 03:30:49,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:49,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 03:30:49,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:49,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:30:49,624 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:30:49,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000859527] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:49,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:49,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:30:49,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746811264] [2023-11-29 03:30:49,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:49,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 03:30:49,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:49,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 03:30:49,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 03:30:49,664 INFO L87 Difference]: Start difference. First operand has 106 states, 57 states have (on average 1.912280701754386) internal successors, (109), 101 states have internal predecessors, (109), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:30:49,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:49,701 INFO L93 Difference]: Finished difference Result 210 states and 230 transitions. [2023-11-29 03:30:49,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 03:30:49,704 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-29 03:30:49,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:49,711 INFO L225 Difference]: With dead ends: 210 [2023-11-29 03:30:49,711 INFO L226 Difference]: Without dead ends: 103 [2023-11-29 03:30:49,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 03:30:49,718 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:49,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 110 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:30:49,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-11-29 03:30:49,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2023-11-29 03:30:49,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 56 states have (on average 1.8571428571428572) internal successors, (104), 99 states have internal predecessors, (104), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:30:49,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 108 transitions. [2023-11-29 03:30:49,760 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 108 transitions. Word has length 5 [2023-11-29 03:30:49,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:49,760 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 108 transitions. [2023-11-29 03:30:49,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:30:49,761 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 108 transitions. [2023-11-29 03:30:49,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 03:30:49,761 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:49,761 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 03:30:49,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:30:49,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 03:30:49,963 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:30:49,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:49,963 INFO L85 PathProgramCache]: Analyzing trace with hash 175686625, now seen corresponding path program 1 times [2023-11-29 03:30:49,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:49,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270913570] [2023-11-29 03:30:49,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:49,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:49,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:50,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:30:50,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:50,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270913570] [2023-11-29 03:30:50,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270913570] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:50,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:50,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:30:50,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226828044] [2023-11-29 03:30:50,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:50,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:30:50,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:50,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:30:50,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:30:50,080 INFO L87 Difference]: Start difference. First operand 103 states and 108 transitions. 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) [2023-11-29 03:30:50,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:50,157 INFO L93 Difference]: Finished difference Result 122 states and 127 transitions. [2023-11-29 03:30:50,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:30:50,158 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 [2023-11-29 03:30:50,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:50,159 INFO L225 Difference]: With dead ends: 122 [2023-11-29 03:30:50,159 INFO L226 Difference]: Without dead ends: 107 [2023-11-29 03:30:50,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:30:50,162 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 4 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:50,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 305 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:30:50,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-29 03:30:50,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2023-11-29 03:30:50,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 60 states have (on average 1.8) internal successors, (108), 103 states have internal predecessors, (108), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:30:50,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 112 transitions. [2023-11-29 03:30:50,175 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 112 transitions. Word has length 5 [2023-11-29 03:30:50,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:50,175 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 112 transitions. [2023-11-29 03:30:50,175 INFO L496 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) [2023-11-29 03:30:50,176 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 112 transitions. [2023-11-29 03:30:50,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 03:30:50,176 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:50,176 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:30:50,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 03:30:50,190 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:30:50,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:50,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1684840623, now seen corresponding path program 1 times [2023-11-29 03:30:50,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:50,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967360328] [2023-11-29 03:30:50,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:50,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:50,206 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:50,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [303417281] [2023-11-29 03:30:50,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:50,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:50,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:50,208 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:50,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 03:30:50,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:50,260 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 03:30:50,262 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:50,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:30:50,428 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:30:50,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:50,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967360328] [2023-11-29 03:30:50,429 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:50,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303417281] [2023-11-29 03:30:50,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303417281] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:50,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:50,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:30:50,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151671330] [2023-11-29 03:30:50,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:50,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:30:50,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:50,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:30:50,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:30:50,433 INFO L87 Difference]: Start difference. First operand 107 states and 112 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) [2023-11-29 03:30:50,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:50,757 INFO L93 Difference]: Finished difference Result 155 states and 167 transitions. [2023-11-29 03:30:50,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:30:50,758 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 [2023-11-29 03:30:50,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:50,760 INFO L225 Difference]: With dead ends: 155 [2023-11-29 03:30:50,760 INFO L226 Difference]: Without dead ends: 144 [2023-11-29 03:30:50,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:30:50,762 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 177 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:50,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 147 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:30:50,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-11-29 03:30:50,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 130. [2023-11-29 03:30:50,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 83 states have (on average 1.6987951807228916) internal successors, (141), 124 states have internal predecessors, (141), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 03:30:50,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 149 transitions. [2023-11-29 03:30:50,779 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 149 transitions. Word has length 8 [2023-11-29 03:30:50,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:50,780 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 149 transitions. [2023-11-29 03:30:50,780 INFO L496 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) [2023-11-29 03:30:50,780 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 149 transitions. [2023-11-29 03:30:50,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-29 03:30:50,781 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:50,781 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:30:50,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 03:30:50,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:50,986 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:30:50,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:50,987 INFO L85 PathProgramCache]: Analyzing trace with hash -690451704, now seen corresponding path program 1 times [2023-11-29 03:30:50,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:50,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777579106] [2023-11-29 03:30:50,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:50,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:50,999 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:50,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [916562463] [2023-11-29 03:30:51,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:51,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:51,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:51,001 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:51,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 03:30:51,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:51,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 03:30:51,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:51,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:30:51,155 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:30:51,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:51,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777579106] [2023-11-29 03:30:51,155 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:51,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916562463] [2023-11-29 03:30:51,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [916562463] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:51,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:51,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:30:51,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621698050] [2023-11-29 03:30:51,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:51,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:30:51,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:51,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:30:51,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:30:51,158 INFO L87 Difference]: Start difference. First operand 130 states and 149 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2023-11-29 03:30:51,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:51,430 INFO L93 Difference]: Finished difference Result 194 states and 221 transitions. [2023-11-29 03:30:51,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:30:51,431 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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 [2023-11-29 03:30:51,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:51,432 INFO L225 Difference]: With dead ends: 194 [2023-11-29 03:30:51,433 INFO L226 Difference]: Without dead ends: 176 [2023-11-29 03:30:51,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:30:51,434 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 189 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:51,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 140 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:30:51,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-11-29 03:30:51,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 156. [2023-11-29 03:30:51,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 110 states have (on average 1.6363636363636365) internal successors, (180), 149 states have internal predecessors, (180), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 03:30:51,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 190 transitions. [2023-11-29 03:30:51,449 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 190 transitions. Word has length 9 [2023-11-29 03:30:51,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:51,449 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 190 transitions. [2023-11-29 03:30:51,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2023-11-29 03:30:51,450 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 190 transitions. [2023-11-29 03:30:51,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 03:30:51,451 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:51,451 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:30:51,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 03:30:51,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:51,657 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:30:51,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:51,658 INFO L85 PathProgramCache]: Analyzing trace with hash 70833715, now seen corresponding path program 1 times [2023-11-29 03:30:51,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:51,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031017069] [2023-11-29 03:30:51,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:51,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:51,665 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:51,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1913746834] [2023-11-29 03:30:51,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:51,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:51,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:51,666 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:51,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 03:30:51,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:51,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 03:30:51,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:51,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:30:51,731 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:30:51,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:51,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031017069] [2023-11-29 03:30:51,732 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:51,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913746834] [2023-11-29 03:30:51,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913746834] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:51,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:51,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:30:51,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074706185] [2023-11-29 03:30:51,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:51,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:30:51,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:51,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:30:51,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:30:51,735 INFO L87 Difference]: Start difference. First operand 156 states and 190 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) [2023-11-29 03:30:51,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:51,925 INFO L93 Difference]: Finished difference Result 257 states and 299 transitions. [2023-11-29 03:30:51,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:30:51,926 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 [2023-11-29 03:30:51,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:51,927 INFO L225 Difference]: With dead ends: 257 [2023-11-29 03:30:51,928 INFO L226 Difference]: Without dead ends: 249 [2023-11-29 03:30:51,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:30:51,929 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 121 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:51,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 137 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:30:51,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2023-11-29 03:30:51,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 207. [2023-11-29 03:30:51,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 159 states have (on average 1.6729559748427674) internal successors, (266), 198 states have internal predecessors, (266), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 03:30:51,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 280 transitions. [2023-11-29 03:30:51,949 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 280 transitions. Word has length 10 [2023-11-29 03:30:51,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:51,949 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 280 transitions. [2023-11-29 03:30:51,949 INFO L496 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) [2023-11-29 03:30:51,950 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 280 transitions. [2023-11-29 03:30:51,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-29 03:30:51,950 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:51,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:30:51,956 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 03:30:52,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:52,157 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:30:52,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:52,157 INFO L85 PathProgramCache]: Analyzing trace with hash -2099122070, now seen corresponding path program 1 times [2023-11-29 03:30:52,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:52,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911699218] [2023-11-29 03:30:52,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:52,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:52,166 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:52,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [284188604] [2023-11-29 03:30:52,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:52,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:52,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:52,167 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:52,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 03:30:52,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:52,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 03:30:52,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:52,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:30:52,242 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:30:52,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:52,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911699218] [2023-11-29 03:30:52,242 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:52,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284188604] [2023-11-29 03:30:52,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284188604] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:52,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:52,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:30:52,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664252179] [2023-11-29 03:30:52,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:52,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:30:52,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:52,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:30:52,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:30:52,244 INFO L87 Difference]: Start difference. First operand 207 states and 280 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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) [2023-11-29 03:30:52,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:52,465 INFO L93 Difference]: Finished difference Result 251 states and 288 transitions. [2023-11-29 03:30:52,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:30:52,465 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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 [2023-11-29 03:30:52,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:52,467 INFO L225 Difference]: With dead ends: 251 [2023-11-29 03:30:52,467 INFO L226 Difference]: Without dead ends: 244 [2023-11-29 03:30:52,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:30:52,468 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 81 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:52,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 166 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:30:52,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2023-11-29 03:30:52,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 203. [2023-11-29 03:30:52,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 156 states have (on average 1.6602564102564104) internal successors, (259), 195 states have internal predecessors, (259), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 03:30:52,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 271 transitions. [2023-11-29 03:30:52,501 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 271 transitions. Word has length 11 [2023-11-29 03:30:52,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:52,501 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 271 transitions. [2023-11-29 03:30:52,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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) [2023-11-29 03:30:52,501 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 271 transitions. [2023-11-29 03:30:52,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 03:30:52,502 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:52,502 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:30:52,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 03:30:52,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 03:30:52,702 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:30:52,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:52,703 INFO L85 PathProgramCache]: Analyzing trace with hash -648274667, now seen corresponding path program 1 times [2023-11-29 03:30:52,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:52,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252956024] [2023-11-29 03:30:52,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:52,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:52,711 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:52,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [7559264] [2023-11-29 03:30:52,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:52,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:52,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:52,713 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:52,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 03:30:52,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:52,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:30:52,748 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:52,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:30:52,773 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:30:52,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:52,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252956024] [2023-11-29 03:30:52,774 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:52,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7559264] [2023-11-29 03:30:52,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [7559264] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:52,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:52,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:30:52,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620854891] [2023-11-29 03:30:52,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:52,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:30:52,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:52,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:30:52,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:30:52,776 INFO L87 Difference]: Start difference. First operand 203 states and 271 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) [2023-11-29 03:30:53,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:53,446 INFO L93 Difference]: Finished difference Result 329 states and 419 transitions. [2023-11-29 03:30:53,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:30:53,446 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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 [2023-11-29 03:30:53,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:53,449 INFO L225 Difference]: With dead ends: 329 [2023-11-29 03:30:53,449 INFO L226 Difference]: Without dead ends: 328 [2023-11-29 03:30:53,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:30:53,450 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 85 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:53,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 167 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 03:30:53,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2023-11-29 03:30:53,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 229. [2023-11-29 03:30:53,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 181 states have (on average 1.6519337016574585) internal successors, (299), 220 states have internal predecessors, (299), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 03:30:53,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 313 transitions. [2023-11-29 03:30:53,466 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 313 transitions. Word has length 12 [2023-11-29 03:30:53,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:53,466 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 313 transitions. [2023-11-29 03:30:53,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) [2023-11-29 03:30:53,467 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 313 transitions. [2023-11-29 03:30:53,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-29 03:30:53,467 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:53,467 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:30:53,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 03:30:53,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 03:30:53,672 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:30:53,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:53,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1378321868, now seen corresponding path program 1 times [2023-11-29 03:30:53,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:53,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034504568] [2023-11-29 03:30:53,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:53,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:53,682 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:53,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1268246247] [2023-11-29 03:30:53,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:53,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:53,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:53,684 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:53,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 03:30:53,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:53,725 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:30:53,726 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:53,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:30:53,756 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:30:53,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:53,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034504568] [2023-11-29 03:30:53,756 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:53,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268246247] [2023-11-29 03:30:53,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268246247] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:53,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:53,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:30:53,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326051969] [2023-11-29 03:30:53,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:53,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:30:53,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:53,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:30:53,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:30:53,758 INFO L87 Difference]: Start difference. First operand 229 states and 313 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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) [2023-11-29 03:30:54,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:54,447 INFO L93 Difference]: Finished difference Result 328 states and 417 transitions. [2023-11-29 03:30:54,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:30:54,447 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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 [2023-11-29 03:30:54,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:54,449 INFO L225 Difference]: With dead ends: 328 [2023-11-29 03:30:54,449 INFO L226 Difference]: Without dead ends: 327 [2023-11-29 03:30:54,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:30:54,451 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 114 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:54,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 162 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 03:30:54,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2023-11-29 03:30:54,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 229. [2023-11-29 03:30:54,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 181 states have (on average 1.6408839779005524) internal successors, (297), 220 states have internal predecessors, (297), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 03:30:54,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 311 transitions. [2023-11-29 03:30:54,461 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 311 transitions. Word has length 13 [2023-11-29 03:30:54,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:54,461 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 311 transitions. [2023-11-29 03:30:54,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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) [2023-11-29 03:30:54,462 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 311 transitions. [2023-11-29 03:30:54,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 03:30:54,463 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:54,463 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:30:54,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 03:30:54,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-29 03:30:54,664 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:30:54,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:54,664 INFO L85 PathProgramCache]: Analyzing trace with hash 668928103, now seen corresponding path program 1 times [2023-11-29 03:30:54,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:54,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945637598] [2023-11-29 03:30:54,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:54,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:54,673 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:54,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [160669281] [2023-11-29 03:30:54,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:54,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:54,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:54,675 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:54,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 03:30:54,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:54,716 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 03:30:54,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:54,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:30:54,818 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:30:54,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:54,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945637598] [2023-11-29 03:30:54,818 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:54,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160669281] [2023-11-29 03:30:54,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160669281] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:54,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:54,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:30:54,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845450405] [2023-11-29 03:30:54,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:54,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:30:54,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:54,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:30:54,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:30:54,820 INFO L87 Difference]: Start difference. First operand 229 states and 311 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:30:54,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:54,986 INFO L93 Difference]: Finished difference Result 242 states and 311 transitions. [2023-11-29 03:30:54,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:30:54,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2023-11-29 03:30:54,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:54,989 INFO L225 Difference]: With dead ends: 242 [2023-11-29 03:30:54,989 INFO L226 Difference]: Without dead ends: 241 [2023-11-29 03:30:54,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:30:54,990 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 169 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:54,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 178 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:30:54,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2023-11-29 03:30:55,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 229. [2023-11-29 03:30:55,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 181 states have (on average 1.6353591160220995) internal successors, (296), 220 states have internal predecessors, (296), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 03:30:55,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 310 transitions. [2023-11-29 03:30:55,003 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 310 transitions. Word has length 26 [2023-11-29 03:30:55,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:55,004 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 310 transitions. [2023-11-29 03:30:55,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:30:55,004 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 310 transitions. [2023-11-29 03:30:55,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 03:30:55,005 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:55,005 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:30:55,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 03:30:55,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:55,211 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:30:55,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:55,212 INFO L85 PathProgramCache]: Analyzing trace with hash -738065184, now seen corresponding path program 1 times [2023-11-29 03:30:55,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:55,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931189242] [2023-11-29 03:30:55,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:55,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:55,221 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:55,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [293253982] [2023-11-29 03:30:55,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:55,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:55,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:55,222 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:55,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 03:30:55,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:55,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:30:55,266 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:55,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:30:55,344 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:30:55,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:55,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931189242] [2023-11-29 03:30:55,345 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:55,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293253982] [2023-11-29 03:30:55,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293253982] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:55,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:55,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:30:55,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68115632] [2023-11-29 03:30:55,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:55,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:30:55,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:55,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:30:55,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:30:55,347 INFO L87 Difference]: Start difference. First operand 229 states and 310 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:30:55,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:55,565 INFO L93 Difference]: Finished difference Result 270 states and 317 transitions. [2023-11-29 03:30:55,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:30:55,565 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2023-11-29 03:30:55,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:55,567 INFO L225 Difference]: With dead ends: 270 [2023-11-29 03:30:55,567 INFO L226 Difference]: Without dead ends: 266 [2023-11-29 03:30:55,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:30:55,568 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 226 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:55,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 86 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:30:55,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2023-11-29 03:30:55,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 226. [2023-11-29 03:30:55,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 178 states have (on average 1.6179775280898876) internal successors, (288), 217 states have internal predecessors, (288), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 03:30:55,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 302 transitions. [2023-11-29 03:30:55,579 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 302 transitions. Word has length 27 [2023-11-29 03:30:55,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:55,579 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 302 transitions. [2023-11-29 03:30:55,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:30:55,579 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 302 transitions. [2023-11-29 03:30:55,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 03:30:55,580 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:55,580 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:30:55,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 03:30:55,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 03:30:55,781 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:30:55,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:55,782 INFO L85 PathProgramCache]: Analyzing trace with hash -724674130, now seen corresponding path program 1 times [2023-11-29 03:30:55,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:55,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970857472] [2023-11-29 03:30:55,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:55,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:55,791 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:55,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [335663420] [2023-11-29 03:30:55,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:55,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:55,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:55,792 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:55,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 03:30:55,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:55,833 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 03:30:55,834 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:55,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:30:55,949 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:30:55,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:55,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970857472] [2023-11-29 03:30:55,949 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:55,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335663420] [2023-11-29 03:30:55,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335663420] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:55,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:55,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:30:55,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422183990] [2023-11-29 03:30:55,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:55,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:30:55,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:55,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:30:55,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:30:55,951 INFO L87 Difference]: Start difference. First operand 226 states and 302 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:30:56,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:56,653 INFO L93 Difference]: Finished difference Result 287 states and 368 transitions. [2023-11-29 03:30:56,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:30:56,654 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2023-11-29 03:30:56,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:56,656 INFO L225 Difference]: With dead ends: 287 [2023-11-29 03:30:56,656 INFO L226 Difference]: Without dead ends: 283 [2023-11-29 03:30:56,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:30:56,658 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 183 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:56,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 142 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 03:30:56,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-11-29 03:30:56,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 253. [2023-11-29 03:30:56,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 204 states have (on average 1.607843137254902) internal successors, (328), 243 states have internal predecessors, (328), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 03:30:56,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 344 transitions. [2023-11-29 03:30:56,672 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 344 transitions. Word has length 27 [2023-11-29 03:30:56,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:56,673 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 344 transitions. [2023-11-29 03:30:56,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:30:56,673 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 344 transitions. [2023-11-29 03:30:56,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 03:30:56,674 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:56,674 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:30:56,680 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 03:30:56,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:56,875 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:30:56,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:56,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1405184119, now seen corresponding path program 1 times [2023-11-29 03:30:56,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:56,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763045433] [2023-11-29 03:30:56,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:56,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:56,883 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:56,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [33584127] [2023-11-29 03:30:56,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:56,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:56,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:56,885 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:56,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 03:30:56,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:56,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:30:56,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:56,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:30:56,968 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:30:56,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:56,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763045433] [2023-11-29 03:30:56,969 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:56,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33584127] [2023-11-29 03:30:56,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33584127] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:56,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:56,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:30:56,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910055565] [2023-11-29 03:30:56,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:56,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:30:56,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:56,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:30:56,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:30:56,970 INFO L87 Difference]: Start difference. First operand 253 states and 344 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:30:58,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:58,046 INFO L93 Difference]: Finished difference Result 343 states and 437 transitions. [2023-11-29 03:30:58,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:30:58,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2023-11-29 03:30:58,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:58,049 INFO L225 Difference]: With dead ends: 343 [2023-11-29 03:30:58,049 INFO L226 Difference]: Without dead ends: 342 [2023-11-29 03:30:58,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:30:58,050 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 72 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:58,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 199 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 03:30:58,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2023-11-29 03:30:58,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 263. [2023-11-29 03:30:58,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 214 states have (on average 1.602803738317757) internal successors, (343), 253 states have internal predecessors, (343), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 03:30:58,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 359 transitions. [2023-11-29 03:30:58,062 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 359 transitions. Word has length 28 [2023-11-29 03:30:58,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:58,062 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 359 transitions. [2023-11-29 03:30:58,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:30:58,062 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 359 transitions. [2023-11-29 03:30:58,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 03:30:58,063 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:58,063 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:30:58,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 03:30:58,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 03:30:58,264 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:30:58,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:58,264 INFO L85 PathProgramCache]: Analyzing trace with hash -990061430, now seen corresponding path program 1 times [2023-11-29 03:30:58,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:58,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323950266] [2023-11-29 03:30:58,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:58,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:58,270 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:58,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [28107821] [2023-11-29 03:30:58,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:58,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:58,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:58,271 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:58,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 03:30:58,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:58,311 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:30:58,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:58,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:30:58,381 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:30:58,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:58,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323950266] [2023-11-29 03:30:58,382 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:58,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28107821] [2023-11-29 03:30:58,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28107821] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:58,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:58,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:30:58,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738963014] [2023-11-29 03:30:58,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:58,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:30:58,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:58,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:30:58,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:30:58,384 INFO L87 Difference]: Start difference. First operand 263 states and 359 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:30:58,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:58,566 INFO L93 Difference]: Finished difference Result 300 states and 366 transitions. [2023-11-29 03:30:58,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:30:58,567 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2023-11-29 03:30:58,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:58,569 INFO L225 Difference]: With dead ends: 300 [2023-11-29 03:30:58,569 INFO L226 Difference]: Without dead ends: 296 [2023-11-29 03:30:58,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:30:58,570 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 227 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:58,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 77 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:30:58,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2023-11-29 03:30:58,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 263. [2023-11-29 03:30:58,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 214 states have (on average 1.5794392523364487) internal successors, (338), 253 states have internal predecessors, (338), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 03:30:58,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 354 transitions. [2023-11-29 03:30:58,580 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 354 transitions. Word has length 28 [2023-11-29 03:30:58,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:58,581 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 354 transitions. [2023-11-29 03:30:58,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:30:58,581 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 354 transitions. [2023-11-29 03:30:58,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 03:30:58,581 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:58,582 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:30:58,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-29 03:30:58,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 03:30:58,782 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:30:58,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:58,783 INFO L85 PathProgramCache]: Analyzing trace with hash -611034622, now seen corresponding path program 1 times [2023-11-29 03:30:58,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:58,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418007597] [2023-11-29 03:30:58,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:58,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:58,790 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:58,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1128091773] [2023-11-29 03:30:58,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:58,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:58,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:58,791 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:58,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 03:30:58,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:58,834 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:30:58,836 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:58,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:30:58,871 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:30:58,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:58,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418007597] [2023-11-29 03:30:58,871 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:58,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128091773] [2023-11-29 03:30:58,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1128091773] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:58,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:58,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:30:58,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782435623] [2023-11-29 03:30:58,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:58,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:30:58,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:58,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:30:58,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:30:58,873 INFO L87 Difference]: Start difference. First operand 263 states and 354 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:30:59,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:59,321 INFO L93 Difference]: Finished difference Result 342 states and 429 transitions. [2023-11-29 03:30:59,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:30:59,321 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2023-11-29 03:30:59,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:59,323 INFO L225 Difference]: With dead ends: 342 [2023-11-29 03:30:59,324 INFO L226 Difference]: Without dead ends: 341 [2023-11-29 03:30:59,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:30:59,325 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 67 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:59,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 202 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:30:59,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2023-11-29 03:30:59,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 265. [2023-11-29 03:30:59,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 216 states have (on average 1.5740740740740742) internal successors, (340), 255 states have internal predecessors, (340), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 03:30:59,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 356 transitions. [2023-11-29 03:30:59,339 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 356 transitions. Word has length 29 [2023-11-29 03:30:59,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:59,339 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 356 transitions. [2023-11-29 03:30:59,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:30:59,339 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 356 transitions. [2023-11-29 03:30:59,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 03:30:59,340 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:59,340 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:30:59,345 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 03:30:59,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 03:30:59,541 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:30:59,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:59,541 INFO L85 PathProgramCache]: Analyzing trace with hash -212964752, now seen corresponding path program 1 times [2023-11-29 03:30:59,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:59,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096014098] [2023-11-29 03:30:59,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:59,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:59,546 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:59,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [408910989] [2023-11-29 03:30:59,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:59,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:59,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:59,548 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:59,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 03:30:59,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:59,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 03:30:59,589 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:59,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:30:59,695 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:30:59,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:59,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096014098] [2023-11-29 03:30:59,695 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:59,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408910989] [2023-11-29 03:30:59,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408910989] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:59,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:59,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:30:59,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143699084] [2023-11-29 03:30:59,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:59,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:30:59,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:59,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:30:59,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:30:59,698 INFO L87 Difference]: Start difference. First operand 265 states and 356 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:01,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:01,314 INFO L93 Difference]: Finished difference Result 489 states and 647 transitions. [2023-11-29 03:31:01,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:31:01,314 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2023-11-29 03:31:01,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:01,317 INFO L225 Difference]: With dead ends: 489 [2023-11-29 03:31:01,317 INFO L226 Difference]: Without dead ends: 481 [2023-11-29 03:31:01,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:31:01,318 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 462 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:01,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 65 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 03:31:01,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2023-11-29 03:31:01,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 369. [2023-11-29 03:31:01,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 317 states have (on average 1.5899053627760253) internal successors, (504), 356 states have internal predecessors, (504), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 03:31:01,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 526 transitions. [2023-11-29 03:31:01,339 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 526 transitions. Word has length 29 [2023-11-29 03:31:01,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:01,339 INFO L495 AbstractCegarLoop]: Abstraction has 369 states and 526 transitions. [2023-11-29 03:31:01,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:01,340 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 526 transitions. [2023-11-29 03:31:01,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 03:31:01,341 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:01,341 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:01,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-29 03:31:01,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 03:31:01,546 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:31:01,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:01,547 INFO L85 PathProgramCache]: Analyzing trace with hash -627133136, now seen corresponding path program 1 times [2023-11-29 03:31:01,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:01,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609747845] [2023-11-29 03:31:01,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:01,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:01,554 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:31:01,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [489787072] [2023-11-29 03:31:01,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:01,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:01,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:01,556 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:01,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 03:31:01,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:01,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:31:01,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:31:01,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:01,642 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:31:01,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:01,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609747845] [2023-11-29 03:31:01,643 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:01,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489787072] [2023-11-29 03:31:01,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489787072] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:01,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:01,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:31:01,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965373868] [2023-11-29 03:31:01,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:01,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:31:01,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:01,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:31:01,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:31:01,645 INFO L87 Difference]: Start difference. First operand 369 states and 526 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:02,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:02,192 INFO L93 Difference]: Finished difference Result 427 states and 574 transitions. [2023-11-29 03:31:02,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:31:02,193 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2023-11-29 03:31:02,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:02,195 INFO L225 Difference]: With dead ends: 427 [2023-11-29 03:31:02,195 INFO L226 Difference]: Without dead ends: 426 [2023-11-29 03:31:02,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:31:02,196 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 58 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:02,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 210 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:31:02,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2023-11-29 03:31:02,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 380. [2023-11-29 03:31:02,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 328 states have (on average 1.5823170731707317) internal successors, (519), 367 states have internal predecessors, (519), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 03:31:02,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 541 transitions. [2023-11-29 03:31:02,210 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 541 transitions. Word has length 29 [2023-11-29 03:31:02,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:02,210 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 541 transitions. [2023-11-29 03:31:02,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:02,211 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 541 transitions. [2023-11-29 03:31:02,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 03:31:02,211 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:02,212 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:02,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 03:31:02,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 03:31:02,412 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:31:02,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:02,413 INFO L85 PathProgramCache]: Analyzing trace with hash 823564061, now seen corresponding path program 1 times [2023-11-29 03:31:02,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:02,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753713167] [2023-11-29 03:31:02,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:02,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:02,419 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:31:02,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1512458407] [2023-11-29 03:31:02,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:02,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:02,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:02,421 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:02,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 03:31:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:02,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:31:02,466 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:31:02,510 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:02,511 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:31:02,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:02,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753713167] [2023-11-29 03:31:02,511 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:02,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512458407] [2023-11-29 03:31:02,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512458407] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:02,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:02,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:31:02,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880728439] [2023-11-29 03:31:02,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:02,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:31:02,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:02,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:31:02,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:31:02,513 INFO L87 Difference]: Start difference. First operand 380 states and 541 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:02,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:02,539 INFO L93 Difference]: Finished difference Result 380 states and 541 transitions. [2023-11-29 03:31:02,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:31:02,540 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2023-11-29 03:31:02,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:02,542 INFO L225 Difference]: With dead ends: 380 [2023-11-29 03:31:02,542 INFO L226 Difference]: Without dead ends: 379 [2023-11-29 03:31:02,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:31:02,543 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 84 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:02,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 192 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:31:02,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2023-11-29 03:31:02,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2023-11-29 03:31:02,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 328 states have (on average 1.5579268292682926) internal successors, (511), 366 states have internal predecessors, (511), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 03:31:02,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 533 transitions. [2023-11-29 03:31:02,562 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 533 transitions. Word has length 30 [2023-11-29 03:31:02,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:02,562 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 533 transitions. [2023-11-29 03:31:02,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:02,562 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 533 transitions. [2023-11-29 03:31:02,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 03:31:02,563 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:02,563 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:02,568 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 03:31:02,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 03:31:02,764 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:31:02,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:02,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1988027418, now seen corresponding path program 1 times [2023-11-29 03:31:02,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:02,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476126732] [2023-11-29 03:31:02,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:02,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:02,772 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:31:02,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1009538125] [2023-11-29 03:31:02,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:02,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:02,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:02,774 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:02,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 03:31:02,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:02,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 03:31:02,815 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:31:02,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:02,909 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:31:02,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:02,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476126732] [2023-11-29 03:31:02,909 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:02,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009538125] [2023-11-29 03:31:02,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009538125] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:02,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:02,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:31:02,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003318967] [2023-11-29 03:31:02,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:02,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:31:02,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:02,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:31:02,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:31:02,911 INFO L87 Difference]: Start difference. First operand 379 states and 533 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:03,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:03,407 INFO L93 Difference]: Finished difference Result 411 states and 570 transitions. [2023-11-29 03:31:03,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:31:03,408 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2023-11-29 03:31:03,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:03,410 INFO L225 Difference]: With dead ends: 411 [2023-11-29 03:31:03,410 INFO L226 Difference]: Without dead ends: 403 [2023-11-29 03:31:03,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:31:03,411 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 324 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:03,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 49 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:31:03,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2023-11-29 03:31:03,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 371. [2023-11-29 03:31:03,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 328 states have (on average 1.4847560975609757) internal successors, (487), 358 states have internal predecessors, (487), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 03:31:03,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 509 transitions. [2023-11-29 03:31:03,424 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 509 transitions. Word has length 30 [2023-11-29 03:31:03,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:03,424 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 509 transitions. [2023-11-29 03:31:03,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:03,425 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 509 transitions. [2023-11-29 03:31:03,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 03:31:03,425 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:03,425 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:03,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 03:31:03,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 03:31:03,626 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:31:03,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:03,626 INFO L85 PathProgramCache]: Analyzing trace with hash 2033709388, now seen corresponding path program 1 times [2023-11-29 03:31:03,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:03,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099640023] [2023-11-29 03:31:03,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:03,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:03,633 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:31:03,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [437270945] [2023-11-29 03:31:03,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:03,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:03,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:03,634 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:03,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 03:31:03,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:03,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:31:03,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:31:03,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:03,704 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:31:03,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:03,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099640023] [2023-11-29 03:31:03,705 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:03,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437270945] [2023-11-29 03:31:03,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437270945] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:03,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:03,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:31:03,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081213155] [2023-11-29 03:31:03,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:03,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:31:03,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:03,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:31:03,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:31:03,706 INFO L87 Difference]: Start difference. First operand 371 states and 509 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:04,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:04,099 INFO L93 Difference]: Finished difference Result 408 states and 536 transitions. [2023-11-29 03:31:04,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:31:04,100 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2023-11-29 03:31:04,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:04,102 INFO L225 Difference]: With dead ends: 408 [2023-11-29 03:31:04,102 INFO L226 Difference]: Without dead ends: 407 [2023-11-29 03:31:04,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:31:04,104 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 47 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:04,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 181 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:31:04,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2023-11-29 03:31:04,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 373. [2023-11-29 03:31:04,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 330 states have (on average 1.481818181818182) internal successors, (489), 360 states have internal predecessors, (489), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 03:31:04,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 511 transitions. [2023-11-29 03:31:04,123 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 511 transitions. Word has length 30 [2023-11-29 03:31:04,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:04,123 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 511 transitions. [2023-11-29 03:31:04,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:04,124 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 511 transitions. [2023-11-29 03:31:04,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-29 03:31:04,124 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:04,124 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:04,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 03:31:04,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:04,325 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:31:04,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:04,325 INFO L85 PathProgramCache]: Analyzing trace with hash -239317837, now seen corresponding path program 1 times [2023-11-29 03:31:04,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:04,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707839550] [2023-11-29 03:31:04,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:04,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:04,332 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:31:04,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [672755610] [2023-11-29 03:31:04,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:04,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:04,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:04,333 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:04,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 03:31:04,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:04,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:31:04,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:31:04,411 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:04,411 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:31:04,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:04,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707839550] [2023-11-29 03:31:04,411 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:04,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672755610] [2023-11-29 03:31:04,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [672755610] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:04,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:04,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:31:04,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52111055] [2023-11-29 03:31:04,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:04,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:31:04,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:04,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:31:04,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:31:04,413 INFO L87 Difference]: Start difference. First operand 373 states and 511 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:04,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:04,448 INFO L93 Difference]: Finished difference Result 384 states and 521 transitions. [2023-11-29 03:31:04,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:31:04,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2023-11-29 03:31:04,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:04,451 INFO L225 Difference]: With dead ends: 384 [2023-11-29 03:31:04,451 INFO L226 Difference]: Without dead ends: 383 [2023-11-29 03:31:04,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:31:04,452 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 71 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:04,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 291 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:31:04,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2023-11-29 03:31:04,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 379. [2023-11-29 03:31:04,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 335 states have (on average 1.4507462686567165) internal successors, (486), 365 states have internal predecessors, (486), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:31:04,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 510 transitions. [2023-11-29 03:31:04,469 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 510 transitions. Word has length 31 [2023-11-29 03:31:04,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:04,470 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 510 transitions. [2023-11-29 03:31:04,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:04,470 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 510 transitions. [2023-11-29 03:31:04,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-29 03:31:04,470 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:04,470 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:04,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 03:31:04,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:04,671 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:31:04,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:04,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1943794325, now seen corresponding path program 1 times [2023-11-29 03:31:04,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:04,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931299209] [2023-11-29 03:31:04,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:04,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:04,678 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:31:04,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1611170400] [2023-11-29 03:31:04,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:04,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:04,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:04,679 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:04,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 03:31:04,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:04,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 03:31:04,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:31:05,003 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:05,003 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:31:05,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:05,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931299209] [2023-11-29 03:31:05,004 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:05,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611170400] [2023-11-29 03:31:05,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611170400] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:05,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:05,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:31:05,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773117927] [2023-11-29 03:31:05,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:05,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:31:05,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:05,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:31:05,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:31:05,006 INFO L87 Difference]: Start difference. First operand 379 states and 510 transitions. Second operand has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 8 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:06,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:06,429 INFO L93 Difference]: Finished difference Result 485 states and 632 transitions. [2023-11-29 03:31:06,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:31:06,430 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 8 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2023-11-29 03:31:06,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:06,433 INFO L225 Difference]: With dead ends: 485 [2023-11-29 03:31:06,433 INFO L226 Difference]: Without dead ends: 479 [2023-11-29 03:31:06,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:31:06,434 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 199 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:06,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 181 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 03:31:06,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2023-11-29 03:31:06,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 432. [2023-11-29 03:31:06,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 385 states have (on average 1.4467532467532467) internal successors, (557), 416 states have internal predecessors, (557), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 13 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 03:31:06,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 587 transitions. [2023-11-29 03:31:06,463 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 587 transitions. Word has length 33 [2023-11-29 03:31:06,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:06,463 INFO L495 AbstractCegarLoop]: Abstraction has 432 states and 587 transitions. [2023-11-29 03:31:06,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 8 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:06,464 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 587 transitions. [2023-11-29 03:31:06,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-29 03:31:06,464 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:06,464 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:06,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 03:31:06,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:06,665 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:31:06,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:06,665 INFO L85 PathProgramCache]: Analyzing trace with hash 2020904180, now seen corresponding path program 1 times [2023-11-29 03:31:06,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:06,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132602640] [2023-11-29 03:31:06,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:06,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:06,672 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:31:06,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1115787789] [2023-11-29 03:31:06,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:06,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:06,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:06,673 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:06,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 03:31:06,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:06,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 03:31:06,714 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:31:06,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:06,849 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:31:06,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:06,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132602640] [2023-11-29 03:31:06,850 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:06,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115787789] [2023-11-29 03:31:06,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115787789] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:06,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:06,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:31:06,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710664426] [2023-11-29 03:31:06,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:06,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:31:06,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:06,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:31:06,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:31:06,852 INFO L87 Difference]: Start difference. First operand 432 states and 587 transitions. Second operand has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 8 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:07,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:07,537 INFO L93 Difference]: Finished difference Result 496 states and 641 transitions. [2023-11-29 03:31:07,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:31:07,538 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 8 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2023-11-29 03:31:07,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:07,540 INFO L225 Difference]: With dead ends: 496 [2023-11-29 03:31:07,540 INFO L226 Difference]: Without dead ends: 486 [2023-11-29 03:31:07,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:31:07,541 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 277 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:07,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 133 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 03:31:07,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2023-11-29 03:31:07,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 405. [2023-11-29 03:31:07,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 359 states have (on average 1.4122562674094707) internal successors, (507), 390 states have internal predecessors, (507), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 03:31:07,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 535 transitions. [2023-11-29 03:31:07,564 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 535 transitions. Word has length 33 [2023-11-29 03:31:07,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:07,564 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 535 transitions. [2023-11-29 03:31:07,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 8 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:07,564 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 535 transitions. [2023-11-29 03:31:07,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-29 03:31:07,565 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:07,565 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:07,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-29 03:31:07,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-29 03:31:07,768 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:31:07,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:07,769 INFO L85 PathProgramCache]: Analyzing trace with hash 128081988, now seen corresponding path program 1 times [2023-11-29 03:31:07,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:07,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903023504] [2023-11-29 03:31:07,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:07,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:07,775 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:31:07,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1588011942] [2023-11-29 03:31:07,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:07,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:07,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:07,777 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:07,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 03:31:07,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:07,881 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 03:31:07,882 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:31:08,132 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:08,132 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:31:08,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:08,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903023504] [2023-11-29 03:31:08,132 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:08,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588011942] [2023-11-29 03:31:08,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588011942] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:08,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:08,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:31:08,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38205919] [2023-11-29 03:31:08,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:08,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:31:08,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:08,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:31:08,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:31:08,134 INFO L87 Difference]: Start difference. First operand 405 states and 535 transitions. Second operand has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:09,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:09,544 INFO L93 Difference]: Finished difference Result 702 states and 898 transitions. [2023-11-29 03:31:09,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:31:09,545 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2023-11-29 03:31:09,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:09,548 INFO L225 Difference]: With dead ends: 702 [2023-11-29 03:31:09,548 INFO L226 Difference]: Without dead ends: 526 [2023-11-29 03:31:09,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:31:09,550 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 260 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:09,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 221 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 03:31:09,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2023-11-29 03:31:09,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 469. [2023-11-29 03:31:09,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 421 states have (on average 1.4133016627078385) internal successors, (595), 452 states have internal predecessors, (595), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 03:31:09,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 627 transitions. [2023-11-29 03:31:09,577 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 627 transitions. Word has length 34 [2023-11-29 03:31:09,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:09,577 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 627 transitions. [2023-11-29 03:31:09,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:09,578 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 627 transitions. [2023-11-29 03:31:09,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-29 03:31:09,578 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:09,578 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:09,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 03:31:09,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:09,779 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:31:09,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:09,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1776479714, now seen corresponding path program 1 times [2023-11-29 03:31:09,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:09,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448106002] [2023-11-29 03:31:09,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:09,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:09,784 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:31:09,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [843391140] [2023-11-29 03:31:09,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:09,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:09,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:09,786 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:09,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 03:31:09,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:09,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 03:31:09,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:31:09,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:09,961 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:31:09,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:09,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448106002] [2023-11-29 03:31:09,961 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:09,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843391140] [2023-11-29 03:31:09,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843391140] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:09,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:09,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:31:09,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014237503] [2023-11-29 03:31:09,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:09,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:31:09,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:09,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:31:09,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:31:09,963 INFO L87 Difference]: Start difference. First operand 469 states and 627 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:10,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:10,555 INFO L93 Difference]: Finished difference Result 513 states and 663 transitions. [2023-11-29 03:31:10,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:31:10,555 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2023-11-29 03:31:10,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:10,558 INFO L225 Difference]: With dead ends: 513 [2023-11-29 03:31:10,558 INFO L226 Difference]: Without dead ends: 512 [2023-11-29 03:31:10,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:31:10,559 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 290 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:10,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 73 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:31:10,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2023-11-29 03:31:10,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 469. [2023-11-29 03:31:10,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 421 states have (on average 1.4085510688836105) internal successors, (593), 452 states have internal predecessors, (593), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 03:31:10,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 625 transitions. [2023-11-29 03:31:10,578 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 625 transitions. Word has length 34 [2023-11-29 03:31:10,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:10,578 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 625 transitions. [2023-11-29 03:31:10,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:10,578 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 625 transitions. [2023-11-29 03:31:10,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-29 03:31:10,578 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:10,579 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:10,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 03:31:10,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:10,779 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:31:10,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:10,779 INFO L85 PathProgramCache]: Analyzing trace with hash -324425609, now seen corresponding path program 1 times [2023-11-29 03:31:10,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:10,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308697699] [2023-11-29 03:31:10,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:10,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:10,785 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:31:10,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2067512361] [2023-11-29 03:31:10,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:10,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:10,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:10,786 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:10,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 03:31:10,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:10,833 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 03:31:10,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:31:11,147 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:11,147 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:31:16,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:16,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308697699] [2023-11-29 03:31:16,578 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:16,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067512361] [2023-11-29 03:31:16,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2067512361] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:31:16,579 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:31:16,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:31:16,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841821950] [2023-11-29 03:31:16,579 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:31:16,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:31:16,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:16,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:31:16,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:31:16,580 INFO L87 Difference]: Start difference. First operand 469 states and 625 transitions. Second operand has 9 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:17,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:17,698 INFO L93 Difference]: Finished difference Result 534 states and 697 transitions. [2023-11-29 03:31:17,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:31:17,699 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2023-11-29 03:31:17,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:17,701 INFO L225 Difference]: With dead ends: 534 [2023-11-29 03:31:17,701 INFO L226 Difference]: Without dead ends: 533 [2023-11-29 03:31:17,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2023-11-29 03:31:17,702 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 191 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:17,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 173 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 03:31:17,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2023-11-29 03:31:17,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 483. [2023-11-29 03:31:17,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 435 states have (on average 1.3954022988505748) internal successors, (607), 466 states have internal predecessors, (607), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 03:31:17,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 639 transitions. [2023-11-29 03:31:17,720 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 639 transitions. Word has length 35 [2023-11-29 03:31:17,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:17,721 INFO L495 AbstractCegarLoop]: Abstraction has 483 states and 639 transitions. [2023-11-29 03:31:17,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:17,721 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 639 transitions. [2023-11-29 03:31:17,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-29 03:31:17,721 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:17,721 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:17,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-29 03:31:17,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 03:31:17,922 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:31:17,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:17,922 INFO L85 PathProgramCache]: Analyzing trace with hash 763703862, now seen corresponding path program 1 times [2023-11-29 03:31:17,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:17,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863766400] [2023-11-29 03:31:17,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:17,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:17,928 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:31:17,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1966005495] [2023-11-29 03:31:17,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:17,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:17,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:17,930 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:17,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 03:31:17,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:17,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:31:17,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:31:18,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:18,006 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:31:18,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:18,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863766400] [2023-11-29 03:31:18,007 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:18,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966005495] [2023-11-29 03:31:18,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966005495] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:18,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:18,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:31:18,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134058682] [2023-11-29 03:31:18,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:18,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:31:18,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:18,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:31:18,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:31:18,009 INFO L87 Difference]: Start difference. First operand 483 states and 639 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:19,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:31:20,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:20,263 INFO L93 Difference]: Finished difference Result 507 states and 655 transitions. [2023-11-29 03:31:20,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:31:20,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2023-11-29 03:31:20,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:20,266 INFO L225 Difference]: With dead ends: 507 [2023-11-29 03:31:20,266 INFO L226 Difference]: Without dead ends: 506 [2023-11-29 03:31:20,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:31:20,267 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 34 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:20,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 164 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 03:31:20,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2023-11-29 03:31:20,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 494. [2023-11-29 03:31:20,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 446 states have (on average 1.3878923766816142) internal successors, (619), 477 states have internal predecessors, (619), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 03:31:20,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 651 transitions. [2023-11-29 03:31:20,285 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 651 transitions. Word has length 35 [2023-11-29 03:31:20,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:20,286 INFO L495 AbstractCegarLoop]: Abstraction has 494 states and 651 transitions. [2023-11-29 03:31:20,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:20,286 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 651 transitions. [2023-11-29 03:31:20,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-29 03:31:20,286 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:20,287 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:20,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-29 03:31:20,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 03:31:20,487 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:31:20,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:20,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1967696964, now seen corresponding path program 1 times [2023-11-29 03:31:20,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:20,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181480418] [2023-11-29 03:31:20,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:20,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:20,493 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:31:20,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1510647304] [2023-11-29 03:31:20,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:20,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:20,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:20,494 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:20,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 03:31:20,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:20,534 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 03:31:20,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:31:20,692 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:20,692 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:31:20,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:20,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181480418] [2023-11-29 03:31:20,692 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:20,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510647304] [2023-11-29 03:31:20,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510647304] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:20,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:20,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:31:20,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887335354] [2023-11-29 03:31:20,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:20,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:31:20,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:20,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:31:20,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:31:20,694 INFO L87 Difference]: Start difference. First operand 494 states and 651 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:21,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:21,859 INFO L93 Difference]: Finished difference Result 856 states and 1136 transitions. [2023-11-29 03:31:21,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:31:21,859 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2023-11-29 03:31:21,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:21,862 INFO L225 Difference]: With dead ends: 856 [2023-11-29 03:31:21,862 INFO L226 Difference]: Without dead ends: 608 [2023-11-29 03:31:21,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:31:21,863 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 80 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:21,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 139 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 03:31:21,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2023-11-29 03:31:21,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 571. [2023-11-29 03:31:21,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 520 states have (on average 1.3846153846153846) internal successors, (720), 549 states have internal predecessors, (720), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 03:31:21,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 760 transitions. [2023-11-29 03:31:21,890 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 760 transitions. Word has length 35 [2023-11-29 03:31:21,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:21,891 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 760 transitions. [2023-11-29 03:31:21,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:21,891 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 760 transitions. [2023-11-29 03:31:21,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 03:31:21,891 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:21,891 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:21,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 03:31:22,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:22,092 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:31:22,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:22,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1467259226, now seen corresponding path program 1 times [2023-11-29 03:31:22,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:22,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39104069] [2023-11-29 03:31:22,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:22,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:22,098 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:31:22,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2121851451] [2023-11-29 03:31:22,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:22,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:22,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:22,099 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:22,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 03:31:22,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:22,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 03:31:22,347 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:31:22,670 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:22,670 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:31:25,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:25,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39104069] [2023-11-29 03:31:25,038 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:25,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121851451] [2023-11-29 03:31:25,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2121851451] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:31:25,039 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:31:25,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:31:25,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535618860] [2023-11-29 03:31:25,039 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:31:25,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:31:25,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:25,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:31:25,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:31:25,041 INFO L87 Difference]: Start difference. First operand 571 states and 760 transitions. Second operand has 9 states, 8 states have (on average 4.25) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:25,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:25,895 INFO L93 Difference]: Finished difference Result 663 states and 866 transitions. [2023-11-29 03:31:25,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:31:25,895 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.25) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2023-11-29 03:31:25,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:25,898 INFO L225 Difference]: With dead ends: 663 [2023-11-29 03:31:25,898 INFO L226 Difference]: Without dead ends: 660 [2023-11-29 03:31:25,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2023-11-29 03:31:25,899 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 184 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:25,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 158 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 03:31:25,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2023-11-29 03:31:25,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 617. [2023-11-29 03:31:25,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 563 states have (on average 1.3783303730017762) internal successors, (776), 592 states have internal predecessors, (776), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-29 03:31:25,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 822 transitions. [2023-11-29 03:31:25,936 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 822 transitions. Word has length 36 [2023-11-29 03:31:25,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:25,936 INFO L495 AbstractCegarLoop]: Abstraction has 617 states and 822 transitions. [2023-11-29 03:31:25,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.25) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:25,937 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 822 transitions. [2023-11-29 03:31:25,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 03:31:25,937 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:25,937 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:25,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-11-29 03:31:26,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 03:31:26,138 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:31:26,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:26,138 INFO L85 PathProgramCache]: Analyzing trace with hash -2094983904, now seen corresponding path program 1 times [2023-11-29 03:31:26,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:26,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421956011] [2023-11-29 03:31:26,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:26,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:26,145 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:31:26,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2122758563] [2023-11-29 03:31:26,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:26,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:26,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:26,147 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:26,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 03:31:26,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:26,192 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:31:26,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:31:26,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:26,240 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:31:26,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:26,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421956011] [2023-11-29 03:31:26,240 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:26,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122758563] [2023-11-29 03:31:26,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122758563] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:26,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:26,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:31:26,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520570723] [2023-11-29 03:31:26,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:26,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:31:26,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:26,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:31:26,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:31:26,244 INFO L87 Difference]: Start difference. First operand 617 states and 822 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:26,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:26,675 INFO L93 Difference]: Finished difference Result 629 states and 824 transitions. [2023-11-29 03:31:26,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:31:26,676 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2023-11-29 03:31:26,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:26,678 INFO L225 Difference]: With dead ends: 629 [2023-11-29 03:31:26,678 INFO L226 Difference]: Without dead ends: 628 [2023-11-29 03:31:26,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:31:26,679 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 29 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:26,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 165 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:31:26,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2023-11-29 03:31:26,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 618. [2023-11-29 03:31:26,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 564 states have (on average 1.375886524822695) internal successors, (776), 593 states have internal predecessors, (776), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-29 03:31:26,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 822 transitions. [2023-11-29 03:31:26,702 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 822 transitions. Word has length 36 [2023-11-29 03:31:26,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:26,703 INFO L495 AbstractCegarLoop]: Abstraction has 618 states and 822 transitions. [2023-11-29 03:31:26,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:26,703 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 822 transitions. [2023-11-29 03:31:26,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 03:31:26,703 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:26,703 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:26,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-29 03:31:26,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 03:31:26,904 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:31:26,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:26,904 INFO L85 PathProgramCache]: Analyzing trace with hash 869063797, now seen corresponding path program 1 times [2023-11-29 03:31:26,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:26,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319650456] [2023-11-29 03:31:26,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:26,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:26,911 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:31:26,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [76780508] [2023-11-29 03:31:26,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:26,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:26,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:26,913 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:26,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 03:31:26,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:26,987 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:31:26,989 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:31:27,750 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:27,750 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:31:27,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:27,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319650456] [2023-11-29 03:31:27,750 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:27,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76780508] [2023-11-29 03:31:27,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76780508] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:27,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:27,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:31:27,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974833692] [2023-11-29 03:31:27,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:27,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:31:27,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:27,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:31:27,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:31:27,752 INFO L87 Difference]: Start difference. First operand 618 states and 822 transitions. Second operand has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:30,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:30,756 INFO L93 Difference]: Finished difference Result 705 states and 927 transitions. [2023-11-29 03:31:30,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:31:30,756 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2023-11-29 03:31:30,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:30,759 INFO L225 Difference]: With dead ends: 705 [2023-11-29 03:31:30,759 INFO L226 Difference]: Without dead ends: 687 [2023-11-29 03:31:30,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:31:30,760 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 217 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:30,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 76 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-29 03:31:30,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2023-11-29 03:31:30,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 658. [2023-11-29 03:31:30,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 606 states have (on average 1.3564356435643565) internal successors, (822), 634 states have internal predecessors, (822), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 03:31:30,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 864 transitions. [2023-11-29 03:31:30,784 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 864 transitions. Word has length 36 [2023-11-29 03:31:30,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:30,784 INFO L495 AbstractCegarLoop]: Abstraction has 658 states and 864 transitions. [2023-11-29 03:31:30,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:30,785 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 864 transitions. [2023-11-29 03:31:30,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-29 03:31:30,785 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:30,785 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:30,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2023-11-29 03:31:30,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:30,986 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:31:30,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:30,986 INFO L85 PathProgramCache]: Analyzing trace with hash 339393682, now seen corresponding path program 1 times [2023-11-29 03:31:30,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:30,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908323170] [2023-11-29 03:31:30,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:30,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:30,992 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:31:30,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [508193350] [2023-11-29 03:31:30,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:30,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:30,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:30,993 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:30,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 03:31:31,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:31,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:31:31,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:31:31,878 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:31,878 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:31:31,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:31,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908323170] [2023-11-29 03:31:31,879 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:31,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508193350] [2023-11-29 03:31:31,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508193350] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:31,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:31,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:31:31,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472038137] [2023-11-29 03:31:31,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:31,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:31:31,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:31,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:31:31,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:31:31,880 INFO L87 Difference]: Start difference. First operand 658 states and 864 transitions. Second operand has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:33,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:33,396 INFO L93 Difference]: Finished difference Result 669 states and 872 transitions. [2023-11-29 03:31:33,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:31:33,396 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2023-11-29 03:31:33,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:33,400 INFO L225 Difference]: With dead ends: 669 [2023-11-29 03:31:33,400 INFO L226 Difference]: Without dead ends: 667 [2023-11-29 03:31:33,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:31:33,401 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 155 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:33,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 196 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 03:31:33,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2023-11-29 03:31:33,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 658. [2023-11-29 03:31:33,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 606 states have (on average 1.353135313531353) internal successors, (820), 634 states have internal predecessors, (820), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 03:31:33,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 862 transitions. [2023-11-29 03:31:33,424 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 862 transitions. Word has length 38 [2023-11-29 03:31:33,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:33,425 INFO L495 AbstractCegarLoop]: Abstraction has 658 states and 862 transitions. [2023-11-29 03:31:33,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:33,425 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 862 transitions. [2023-11-29 03:31:33,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-29 03:31:33,425 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:33,426 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:33,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-11-29 03:31:33,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:33,626 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:31:33,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:33,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1931269615, now seen corresponding path program 1 times [2023-11-29 03:31:33,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:33,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839109092] [2023-11-29 03:31:33,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:33,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:33,631 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:31:33,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1723992013] [2023-11-29 03:31:33,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:33,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:33,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:33,632 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:33,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 03:31:33,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:33,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 03:31:33,675 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:31:33,966 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:33,966 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:31:34,364 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:34,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:34,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839109092] [2023-11-29 03:31:34,364 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:34,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723992013] [2023-11-29 03:31:34,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723992013] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:31:34,364 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:31:34,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2023-11-29 03:31:34,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461606976] [2023-11-29 03:31:34,364 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:31:34,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 03:31:34,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:34,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 03:31:34,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:31:34,365 INFO L87 Difference]: Start difference. First operand 658 states and 862 transitions. Second operand has 13 states, 12 states have (on average 5.916666666666667) internal successors, (71), 13 states have internal predecessors, (71), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:31:36,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:36,728 INFO L93 Difference]: Finished difference Result 791 states and 1026 transitions. [2023-11-29 03:31:36,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:31:36,729 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.916666666666667) internal successors, (71), 13 states have internal predecessors, (71), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 39 [2023-11-29 03:31:36,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:36,733 INFO L225 Difference]: With dead ends: 791 [2023-11-29 03:31:36,733 INFO L226 Difference]: Without dead ends: 789 [2023-11-29 03:31:36,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=151, Invalid=355, Unknown=0, NotChecked=0, Total=506 [2023-11-29 03:31:36,734 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 450 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:36,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 157 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 03:31:36,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2023-11-29 03:31:36,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 721. [2023-11-29 03:31:36,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 668 states have (on average 1.347305389221557) internal successors, (900), 696 states have internal predecessors, (900), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 03:31:36,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 944 transitions. [2023-11-29 03:31:36,767 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 944 transitions. Word has length 39 [2023-11-29 03:31:36,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:36,768 INFO L495 AbstractCegarLoop]: Abstraction has 721 states and 944 transitions. [2023-11-29 03:31:36,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.916666666666667) internal successors, (71), 13 states have internal predecessors, (71), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:31:36,768 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 944 transitions. [2023-11-29 03:31:36,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-29 03:31:36,768 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:36,768 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:36,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2023-11-29 03:31:36,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:36,969 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:31:36,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:36,969 INFO L85 PathProgramCache]: Analyzing trace with hash 216774792, now seen corresponding path program 1 times [2023-11-29 03:31:36,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:36,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609653122] [2023-11-29 03:31:36,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:36,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:36,974 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:31:36,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [719716800] [2023-11-29 03:31:36,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:36,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:36,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:36,976 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:36,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 03:31:37,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:37,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 03:31:37,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:31:37,371 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:37,371 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:31:37,710 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:37,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:37,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609653122] [2023-11-29 03:31:37,711 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:37,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719716800] [2023-11-29 03:31:37,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719716800] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 03:31:37,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:31:37,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2023-11-29 03:31:37,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703806158] [2023-11-29 03:31:37,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:37,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:31:37,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:37,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:31:37,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:31:37,712 INFO L87 Difference]: Start difference. First operand 721 states and 944 transitions. Second operand has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:42,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.62s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:31:43,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:43,367 INFO L93 Difference]: Finished difference Result 724 states and 944 transitions. [2023-11-29 03:31:43,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:31:43,368 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2023-11-29 03:31:43,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:43,370 INFO L225 Difference]: With dead ends: 724 [2023-11-29 03:31:43,370 INFO L226 Difference]: Without dead ends: 723 [2023-11-29 03:31:43,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:31:43,371 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 127 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:43,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 94 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-11-29 03:31:43,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2023-11-29 03:31:43,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 721. [2023-11-29 03:31:43,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 668 states have (on average 1.341317365269461) internal successors, (896), 696 states have internal predecessors, (896), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 03:31:43,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 940 transitions. [2023-11-29 03:31:43,405 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 940 transitions. Word has length 39 [2023-11-29 03:31:43,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:43,405 INFO L495 AbstractCegarLoop]: Abstraction has 721 states and 940 transitions. [2023-11-29 03:31:43,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:43,405 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 940 transitions. [2023-11-29 03:31:43,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-29 03:31:43,405 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:43,406 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:43,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-29 03:31:43,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:43,606 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:31:43,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:43,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1869915975, now seen corresponding path program 1 times [2023-11-29 03:31:43,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:43,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215652935] [2023-11-29 03:31:43,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:43,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:43,611 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:31:43,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2110637779] [2023-11-29 03:31:43,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:43,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:43,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:43,613 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:43,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-29 03:31:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:43,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:31:43,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:31:43,744 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:43,744 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:31:43,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:43,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215652935] [2023-11-29 03:31:43,745 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:43,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110637779] [2023-11-29 03:31:43,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110637779] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:43,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:43,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:31:43,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564621654] [2023-11-29 03:31:43,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:43,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:31:43,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:43,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:31:43,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:31:43,746 INFO L87 Difference]: Start difference. First operand 721 states and 940 transitions. Second operand has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:44,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:44,113 INFO L93 Difference]: Finished difference Result 744 states and 952 transitions. [2023-11-29 03:31:44,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:31:44,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2023-11-29 03:31:44,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:44,116 INFO L225 Difference]: With dead ends: 744 [2023-11-29 03:31:44,117 INFO L226 Difference]: Without dead ends: 743 [2023-11-29 03:31:44,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:31:44,117 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 42 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:44,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 142 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:31:44,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2023-11-29 03:31:44,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 721. [2023-11-29 03:31:44,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 668 states have (on average 1.3383233532934131) internal successors, (894), 696 states have internal predecessors, (894), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 03:31:44,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 938 transitions. [2023-11-29 03:31:44,161 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 938 transitions. Word has length 40 [2023-11-29 03:31:44,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:44,161 INFO L495 AbstractCegarLoop]: Abstraction has 721 states and 938 transitions. [2023-11-29 03:31:44,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:44,161 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 938 transitions. [2023-11-29 03:31:44,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-29 03:31:44,162 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:44,162 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:44,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-29 03:31:44,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-11-29 03:31:44,362 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:31:44,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:44,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1482738928, now seen corresponding path program 1 times [2023-11-29 03:31:44,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:44,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856331528] [2023-11-29 03:31:44,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:44,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:44,369 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:31:44,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [511735172] [2023-11-29 03:31:44,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:44,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:44,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:44,370 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:44,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-29 03:31:44,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:44,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 03:31:44,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:31:44,581 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:44,581 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:31:44,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:44,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856331528] [2023-11-29 03:31:44,677 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:44,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511735172] [2023-11-29 03:31:44,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511735172] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:31:44,678 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:31:44,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 03:31:44,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038404897] [2023-11-29 03:31:44,678 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:31:44,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:31:44,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:44,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:31:44,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:31:44,679 INFO L87 Difference]: Start difference. First operand 721 states and 938 transitions. Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:45,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:45,881 INFO L93 Difference]: Finished difference Result 847 states and 1091 transitions. [2023-11-29 03:31:45,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:31:45,881 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2023-11-29 03:31:45,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:45,884 INFO L225 Difference]: With dead ends: 847 [2023-11-29 03:31:45,884 INFO L226 Difference]: Without dead ends: 841 [2023-11-29 03:31:45,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:31:45,885 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 260 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:45,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 148 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 03:31:45,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2023-11-29 03:31:45,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 805. [2023-11-29 03:31:45,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 805 states, 748 states have (on average 1.3422459893048129) internal successors, (1004), 776 states have internal predecessors, (1004), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 03:31:45,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 1056 transitions. [2023-11-29 03:31:45,924 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 1056 transitions. Word has length 41 [2023-11-29 03:31:45,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:45,924 INFO L495 AbstractCegarLoop]: Abstraction has 805 states and 1056 transitions. [2023-11-29 03:31:45,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:45,924 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 1056 transitions. [2023-11-29 03:31:45,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 03:31:45,925 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:45,925 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:45,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2023-11-29 03:31:46,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-29 03:31:46,125 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:31:46,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:46,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1279733431, now seen corresponding path program 1 times [2023-11-29 03:31:46,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:46,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907363003] [2023-11-29 03:31:46,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:46,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:46,131 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:31:46,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [733502989] [2023-11-29 03:31:46,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:46,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:46,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:46,132 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:46,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-29 03:31:46,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:46,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 03:31:46,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:31:46,337 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:46,337 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:31:46,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:46,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907363003] [2023-11-29 03:31:46,467 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:46,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733502989] [2023-11-29 03:31:46,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733502989] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:31:46,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:31:46,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 03:31:46,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305397911] [2023-11-29 03:31:46,468 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:31:46,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:31:46,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:46,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:31:46,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:31:46,469 INFO L87 Difference]: Start difference. First operand 805 states and 1056 transitions. Second operand has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:46,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:46,986 INFO L93 Difference]: Finished difference Result 842 states and 1101 transitions. [2023-11-29 03:31:46,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:31:46,987 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2023-11-29 03:31:46,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:46,991 INFO L225 Difference]: With dead ends: 842 [2023-11-29 03:31:46,991 INFO L226 Difference]: Without dead ends: 828 [2023-11-29 03:31:46,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:31:46,992 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 190 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:46,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 134 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:31:46,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2023-11-29 03:31:47,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 728. [2023-11-29 03:31:47,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 677 states have (on average 1.3205317577548006) internal successors, (894), 701 states have internal predecessors, (894), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-29 03:31:47,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 942 transitions. [2023-11-29 03:31:47,035 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 942 transitions. Word has length 42 [2023-11-29 03:31:47,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:47,035 INFO L495 AbstractCegarLoop]: Abstraction has 728 states and 942 transitions. [2023-11-29 03:31:47,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:47,035 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 942 transitions. [2023-11-29 03:31:47,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-29 03:31:47,035 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:47,036 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:47,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2023-11-29 03:31:47,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-11-29 03:31:47,236 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:31:47,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:47,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1886102324, now seen corresponding path program 1 times [2023-11-29 03:31:47,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:47,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385143944] [2023-11-29 03:31:47,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:47,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:47,241 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:31:47,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [299634544] [2023-11-29 03:31:47,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:47,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:47,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:47,242 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:47,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-29 03:31:47,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:47,283 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 03:31:47,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:31:47,635 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:47,635 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:31:47,801 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 03:31:47,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:47,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385143944] [2023-11-29 03:31:47,801 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:47,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299634544] [2023-11-29 03:31:47,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [299634544] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 03:31:47,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:31:47,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2023-11-29 03:31:47,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654081670] [2023-11-29 03:31:47,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:47,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:31:47,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:47,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:31:47,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:31:47,803 INFO L87 Difference]: Start difference. First operand 728 states and 942 transitions. Second operand has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:49,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:49,181 INFO L93 Difference]: Finished difference Result 739 states and 956 transitions. [2023-11-29 03:31:49,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:31:49,181 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2023-11-29 03:31:49,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:49,184 INFO L225 Difference]: With dead ends: 739 [2023-11-29 03:31:49,184 INFO L226 Difference]: Without dead ends: 738 [2023-11-29 03:31:49,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2023-11-29 03:31:49,185 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 117 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:49,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 72 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 03:31:49,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2023-11-29 03:31:49,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 736. [2023-11-29 03:31:49,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 685 states have (on average 1.3065693430656935) internal successors, (895), 709 states have internal predecessors, (895), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-29 03:31:49,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 943 transitions. [2023-11-29 03:31:49,225 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 943 transitions. Word has length 45 [2023-11-29 03:31:49,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:49,226 INFO L495 AbstractCegarLoop]: Abstraction has 736 states and 943 transitions. [2023-11-29 03:31:49,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:49,226 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 943 transitions. [2023-11-29 03:31:49,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-29 03:31:49,226 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:49,226 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:49,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2023-11-29 03:31:49,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-11-29 03:31:49,427 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:31:49,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:49,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1660370035, now seen corresponding path program 1 times [2023-11-29 03:31:49,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:49,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630976689] [2023-11-29 03:31:49,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:49,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:49,432 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:31:49,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [473436522] [2023-11-29 03:31:49,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:49,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:49,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:49,433 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:49,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-29 03:31:49,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:49,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 03:31:49,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:31:49,817 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:49,817 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:31:49,952 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 03:31:49,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:49,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630976689] [2023-11-29 03:31:49,952 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:49,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473436522] [2023-11-29 03:31:49,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473436522] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 03:31:49,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:31:49,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2023-11-29 03:31:49,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776452042] [2023-11-29 03:31:49,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:49,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:31:49,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:49,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:31:49,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:31:49,954 INFO L87 Difference]: Start difference. First operand 736 states and 943 transitions. Second operand has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:51,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:51,560 INFO L93 Difference]: Finished difference Result 741 states and 947 transitions. [2023-11-29 03:31:51,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:31:51,561 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 46 [2023-11-29 03:31:51,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:51,564 INFO L225 Difference]: With dead ends: 741 [2023-11-29 03:31:51,564 INFO L226 Difference]: Without dead ends: 740 [2023-11-29 03:31:51,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2023-11-29 03:31:51,565 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 117 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:51,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 73 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 03:31:51,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2023-11-29 03:31:51,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 698. [2023-11-29 03:31:51,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 647 states have (on average 1.304482225656878) internal successors, (844), 671 states have internal predecessors, (844), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-29 03:31:51,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 892 transitions. [2023-11-29 03:31:51,602 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 892 transitions. Word has length 46 [2023-11-29 03:31:51,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:51,602 INFO L495 AbstractCegarLoop]: Abstraction has 698 states and 892 transitions. [2023-11-29 03:31:51,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:31:51,602 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 892 transitions. [2023-11-29 03:31:51,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-29 03:31:51,603 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:51,603 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:51,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2023-11-29 03:31:51,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-29 03:31:51,803 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:31:51,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:51,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1559151077, now seen corresponding path program 1 times [2023-11-29 03:31:51,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:51,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607195971] [2023-11-29 03:31:51,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:51,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:51,808 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:31:51,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1980886734] [2023-11-29 03:31:51,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:51,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:51,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:51,817 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:51,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-29 03:31:51,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:51,856 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:31:51,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:31:51,903 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:31:51,904 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:31:51,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:51,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607195971] [2023-11-29 03:31:51,904 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:51,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980886734] [2023-11-29 03:31:51,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980886734] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:51,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:51,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:31:51,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475544950] [2023-11-29 03:31:51,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:51,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:31:51,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:51,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:31:51,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:31:51,905 INFO L87 Difference]: Start difference. First operand 698 states and 892 transitions. Second operand has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:31:52,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:52,350 INFO L93 Difference]: Finished difference Result 711 states and 897 transitions. [2023-11-29 03:31:52,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:31:52,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 52 [2023-11-29 03:31:52,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:52,353 INFO L225 Difference]: With dead ends: 711 [2023-11-29 03:31:52,353 INFO L226 Difference]: Without dead ends: 710 [2023-11-29 03:31:52,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:31:52,354 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 98 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:52,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 142 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:31:52,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2023-11-29 03:31:52,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 697. [2023-11-29 03:31:52,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 647 states have (on average 1.295208655332303) internal successors, (838), 670 states have internal predecessors, (838), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-29 03:31:52,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 886 transitions. [2023-11-29 03:31:52,390 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 886 transitions. Word has length 52 [2023-11-29 03:31:52,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:52,391 INFO L495 AbstractCegarLoop]: Abstraction has 697 states and 886 transitions. [2023-11-29 03:31:52,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:31:52,391 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 886 transitions. [2023-11-29 03:31:52,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-29 03:31:52,391 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:52,391 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:52,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2023-11-29 03:31:52,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-29 03:31:52,592 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:31:52,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:52,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1130637334, now seen corresponding path program 1 times [2023-11-29 03:31:52,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:52,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112866417] [2023-11-29 03:31:52,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:52,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:52,599 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:31:52,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1955388552] [2023-11-29 03:31:52,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:52,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:52,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:52,600 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:52,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-29 03:31:52,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:52,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:31:52,650 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:31:52,779 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:31:52,780 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:31:53,660 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:31:53,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:53,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112866417] [2023-11-29 03:31:53,661 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:53,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955388552] [2023-11-29 03:31:53,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955388552] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:31:53,661 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:31:53,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 03:31:53,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958891158] [2023-11-29 03:31:53,661 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:31:53,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:31:53,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:53,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:31:53,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:31:53,662 INFO L87 Difference]: Start difference. First operand 697 states and 886 transitions. Second operand has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 03:32:06,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:32:07,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:32:07,616 INFO L93 Difference]: Finished difference Result 2208 states and 2800 transitions. [2023-11-29 03:32:07,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:32:07,617 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 52 [2023-11-29 03:32:07,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:32:07,625 INFO L225 Difference]: With dead ends: 2208 [2023-11-29 03:32:07,625 INFO L226 Difference]: Without dead ends: 1831 [2023-11-29 03:32:07,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=157, Invalid=305, Unknown=0, NotChecked=0, Total=462 [2023-11-29 03:32:07,626 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 594 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:32:07,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 207 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 13.3s Time] [2023-11-29 03:32:07,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1831 states. [2023-11-29 03:32:07,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1831 to 1630. [2023-11-29 03:32:07,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1630 states, 1544 states have (on average 1.3050518134715026) internal successors, (2015), 1567 states have internal predecessors, (2015), 60 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-29 03:32:07,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1630 states to 1630 states and 2135 transitions. [2023-11-29 03:32:07,739 INFO L78 Accepts]: Start accepts. Automaton has 1630 states and 2135 transitions. Word has length 52 [2023-11-29 03:32:07,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:32:07,739 INFO L495 AbstractCegarLoop]: Abstraction has 1630 states and 2135 transitions. [2023-11-29 03:32:07,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 03:32:07,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1630 states and 2135 transitions. [2023-11-29 03:32:07,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 03:32:07,740 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:32:07,740 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:32:07,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2023-11-29 03:32:07,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-29 03:32:07,940 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:32:07,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:32:07,941 INFO L85 PathProgramCache]: Analyzing trace with hash -690018866, now seen corresponding path program 1 times [2023-11-29 03:32:07,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:32:07,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808430858] [2023-11-29 03:32:07,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:07,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:32:07,947 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:32:07,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1963742060] [2023-11-29 03:32:07,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:07,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:32:07,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:32:07,948 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:32:07,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-29 03:32:07,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:32:07,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 03:32:07,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:32:08,148 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:32:08,148 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:32:09,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:32:09,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808430858] [2023-11-29 03:32:09,909 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:32:09,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963742060] [2023-11-29 03:32:09,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963742060] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:32:09,909 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:32:09,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 03:32:09,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364669027] [2023-11-29 03:32:09,909 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:32:09,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:32:09,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:32:09,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:32:09,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:32:09,910 INFO L87 Difference]: Start difference. First operand 1630 states and 2135 transitions. Second operand has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:32:11,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:32:11,448 INFO L93 Difference]: Finished difference Result 2171 states and 2851 transitions. [2023-11-29 03:32:11,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:32:11,449 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 53 [2023-11-29 03:32:11,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:32:11,456 INFO L225 Difference]: With dead ends: 2171 [2023-11-29 03:32:11,457 INFO L226 Difference]: Without dead ends: 2169 [2023-11-29 03:32:11,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:32:11,457 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 355 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:32:11,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 163 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 03:32:11,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2169 states. [2023-11-29 03:32:11,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2169 to 2123. [2023-11-29 03:32:11,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2123 states, 2019 states have (on average 1.3164933135215453) internal successors, (2658), 2042 states have internal predecessors, (2658), 78 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-29 03:32:11,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2123 states to 2123 states and 2814 transitions. [2023-11-29 03:32:11,585 INFO L78 Accepts]: Start accepts. Automaton has 2123 states and 2814 transitions. Word has length 53 [2023-11-29 03:32:11,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:32:11,585 INFO L495 AbstractCegarLoop]: Abstraction has 2123 states and 2814 transitions. [2023-11-29 03:32:11,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:32:11,585 INFO L276 IsEmpty]: Start isEmpty. Operand 2123 states and 2814 transitions. [2023-11-29 03:32:11,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 03:32:11,586 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:32:11,586 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:32:11,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2023-11-29 03:32:11,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:32:11,787 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:32:11,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:32:11,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1909629101, now seen corresponding path program 1 times [2023-11-29 03:32:11,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:32:11,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198829870] [2023-11-29 03:32:11,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:11,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:32:11,794 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:32:11,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2068798352] [2023-11-29 03:32:11,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:11,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:32:11,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:32:11,795 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:32:11,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-29 03:32:11,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:32:11,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 03:32:11,840 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:32:11,902 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:32:11,903 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:32:11,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:32:11,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198829870] [2023-11-29 03:32:11,903 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:32:11,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068798352] [2023-11-29 03:32:11,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068798352] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:32:11,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:32:11,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:32:11,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139566761] [2023-11-29 03:32:11,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:32:11,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:32:11,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:32:11,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:32:11,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:32:11,904 INFO L87 Difference]: Start difference. First operand 2123 states and 2814 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:32:12,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:32:12,377 INFO L93 Difference]: Finished difference Result 3558 states and 4744 transitions. [2023-11-29 03:32:12,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:32:12,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 55 [2023-11-29 03:32:12,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:32:12,386 INFO L225 Difference]: With dead ends: 3558 [2023-11-29 03:32:12,387 INFO L226 Difference]: Without dead ends: 2140 [2023-11-29 03:32:12,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:32:12,389 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 21 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:32:12,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 124 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:32:12,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2023-11-29 03:32:12,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1765. [2023-11-29 03:32:12,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1765 states, 1675 states have (on average 1.3044776119402985) internal successors, (2185), 1698 states have internal predecessors, (2185), 64 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-11-29 03:32:12,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1765 states to 1765 states and 2313 transitions. [2023-11-29 03:32:12,496 INFO L78 Accepts]: Start accepts. Automaton has 1765 states and 2313 transitions. Word has length 55 [2023-11-29 03:32:12,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:32:12,496 INFO L495 AbstractCegarLoop]: Abstraction has 1765 states and 2313 transitions. [2023-11-29 03:32:12,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:32:12,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1765 states and 2313 transitions. [2023-11-29 03:32:12,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-29 03:32:12,496 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:32:12,497 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:32:12,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2023-11-29 03:32:12,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:32:12,697 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:32:12,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:32:12,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1235316272, now seen corresponding path program 1 times [2023-11-29 03:32:12,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:32:12,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493031714] [2023-11-29 03:32:12,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:12,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:32:12,704 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:32:12,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [473789237] [2023-11-29 03:32:12,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:12,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:32:12,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:32:12,705 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:32:12,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-29 03:32:12,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:32:12,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 03:32:12,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:32:13,074 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:32:13,074 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:32:17,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:32:17,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493031714] [2023-11-29 03:32:17,315 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:32:17,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473789237] [2023-11-29 03:32:17,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473789237] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:32:17,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:32:17,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 03:32:17,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403945972] [2023-11-29 03:32:17,315 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:32:17,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:32:17,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:32:17,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:32:17,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=143, Unknown=1, NotChecked=0, Total=210 [2023-11-29 03:32:17,317 INFO L87 Difference]: Start difference. First operand 1765 states and 2313 transitions. Second operand has 11 states, 10 states have (on average 5.1) internal successors, (51), 11 states have internal predecessors, (51), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:32:18,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:32:18,974 INFO L93 Difference]: Finished difference Result 2015 states and 2623 transitions. [2023-11-29 03:32:18,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:32:18,975 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.1) internal successors, (51), 11 states have internal predecessors, (51), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 58 [2023-11-29 03:32:18,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:32:18,986 INFO L225 Difference]: With dead ends: 2015 [2023-11-29 03:32:18,986 INFO L226 Difference]: Without dead ends: 2013 [2023-11-29 03:32:18,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=140, Invalid=365, Unknown=1, NotChecked=0, Total=506 [2023-11-29 03:32:18,988 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 219 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:32:18,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 192 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 03:32:18,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2013 states. [2023-11-29 03:32:19,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2013 to 1947. [2023-11-29 03:32:19,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1947 states, 1849 states have (on average 1.30881557598702) internal successors, (2420), 1872 states have internal predecessors, (2420), 72 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2023-11-29 03:32:19,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1947 states to 1947 states and 2564 transitions. [2023-11-29 03:32:19,127 INFO L78 Accepts]: Start accepts. Automaton has 1947 states and 2564 transitions. Word has length 58 [2023-11-29 03:32:19,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:32:19,127 INFO L495 AbstractCegarLoop]: Abstraction has 1947 states and 2564 transitions. [2023-11-29 03:32:19,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.1) internal successors, (51), 11 states have internal predecessors, (51), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:32:19,128 INFO L276 IsEmpty]: Start isEmpty. Operand 1947 states and 2564 transitions. [2023-11-29 03:32:19,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 03:32:19,128 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:32:19,128 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:32:19,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2023-11-29 03:32:19,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:32:19,329 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:32:19,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:32:19,329 INFO L85 PathProgramCache]: Analyzing trace with hash -359901086, now seen corresponding path program 1 times [2023-11-29 03:32:19,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:32:19,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928139631] [2023-11-29 03:32:19,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:19,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:32:19,336 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:32:19,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1663774232] [2023-11-29 03:32:19,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:19,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:32:19,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:32:19,337 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:32:19,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-29 03:32:19,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:32:19,393 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 03:32:19,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:32:19,724 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:32:19,724 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:32:23,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:32:23,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928139631] [2023-11-29 03:32:23,890 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:32:23,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663774232] [2023-11-29 03:32:23,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663774232] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:32:23,890 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:32:23,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 03:32:23,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600888119] [2023-11-29 03:32:23,890 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:32:23,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:32:23,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:32:23,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:32:23,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=130, Unknown=1, NotChecked=0, Total=182 [2023-11-29 03:32:23,891 INFO L87 Difference]: Start difference. First operand 1947 states and 2564 transitions. Second operand has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:32:26,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:32:26,021 INFO L93 Difference]: Finished difference Result 2235 states and 2919 transitions. [2023-11-29 03:32:26,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:32:26,022 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 59 [2023-11-29 03:32:26,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:32:26,026 INFO L225 Difference]: With dead ends: 2235 [2023-11-29 03:32:26,026 INFO L226 Difference]: Without dead ends: 2233 [2023-11-29 03:32:26,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=114, Invalid=347, Unknown=1, NotChecked=0, Total=462 [2023-11-29 03:32:26,027 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 286 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:32:26,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 216 Invalid, 843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 03:32:26,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2233 states. [2023-11-29 03:32:26,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2233 to 2150. [2023-11-29 03:32:26,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2150 states, 2044 states have (on average 1.3140900195694716) internal successors, (2686), 2067 states have internal predecessors, (2686), 80 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2023-11-29 03:32:26,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 2846 transitions. [2023-11-29 03:32:26,156 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 2846 transitions. Word has length 59 [2023-11-29 03:32:26,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:32:26,157 INFO L495 AbstractCegarLoop]: Abstraction has 2150 states and 2846 transitions. [2023-11-29 03:32:26,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:32:26,157 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 2846 transitions. [2023-11-29 03:32:26,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-29 03:32:26,157 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:32:26,158 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-29 03:32:26,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2023-11-29 03:32:26,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:32:26,358 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:32:26,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:32:26,358 INFO L85 PathProgramCache]: Analyzing trace with hash 639838899, now seen corresponding path program 2 times [2023-11-29 03:32:26,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:32:26,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860623291] [2023-11-29 03:32:26,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:26,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:32:26,365 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:32:26,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1218055824] [2023-11-29 03:32:26,365 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:32:26,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:32:26,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:32:26,366 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:32:26,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-29 03:32:26,437 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:32:26,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:32:26,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 03:32:26,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:32:26,932 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:32:26,932 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:32:33,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:32:33,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860623291] [2023-11-29 03:32:33,407 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:32:33,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218055824] [2023-11-29 03:32:33,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218055824] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:32:33,407 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:32:33,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 03:32:33,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696798805] [2023-11-29 03:32:33,408 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:32:33,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 03:32:33,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:32:33,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 03:32:33,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2023-11-29 03:32:33,409 INFO L87 Difference]: Start difference. First operand 2150 states and 2846 transitions. Second operand has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:32:34,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:32:34,696 INFO L93 Difference]: Finished difference Result 2259 states and 2970 transitions. [2023-11-29 03:32:34,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:32:34,696 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 60 [2023-11-29 03:32:34,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:32:34,701 INFO L225 Difference]: With dead ends: 2259 [2023-11-29 03:32:34,701 INFO L226 Difference]: Without dead ends: 2258 [2023-11-29 03:32:34,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=174, Invalid=582, Unknown=0, NotChecked=0, Total=756 [2023-11-29 03:32:34,703 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 175 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:32:34,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 271 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1173 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 03:32:34,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2258 states. [2023-11-29 03:32:34,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2258 to 2189. [2023-11-29 03:32:34,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2189 states, 2083 states have (on average 1.3062890062409986) internal successors, (2721), 2106 states have internal predecessors, (2721), 80 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2023-11-29 03:32:34,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2189 states to 2189 states and 2881 transitions. [2023-11-29 03:32:34,852 INFO L78 Accepts]: Start accepts. Automaton has 2189 states and 2881 transitions. Word has length 60 [2023-11-29 03:32:34,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:32:34,852 INFO L495 AbstractCegarLoop]: Abstraction has 2189 states and 2881 transitions. [2023-11-29 03:32:34,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:32:34,852 INFO L276 IsEmpty]: Start isEmpty. Operand 2189 states and 2881 transitions. [2023-11-29 03:32:34,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 03:32:34,853 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:32:34,853 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-29 03:32:34,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2023-11-29 03:32:35,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:32:35,054 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:32:35,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:32:35,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1639830550, now seen corresponding path program 2 times [2023-11-29 03:32:35,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:32:35,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452494111] [2023-11-29 03:32:35,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:35,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:32:35,059 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:32:35,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [340892978] [2023-11-29 03:32:35,059 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:32:35,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:32:35,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:32:35,060 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:32:35,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-29 03:32:35,335 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:32:35,336 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:32:35,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 03:32:35,338 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:32:35,808 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:32:35,808 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:32:59,926 WARN L293 SmtUtils]: Spent 11.11s on a formula simplification. DAG size of input: 51 DAG size of output: 45 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:33:08,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:08,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452494111] [2023-11-29 03:33:08,503 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:33:08,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340892978] [2023-11-29 03:33:08,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340892978] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:33:08,503 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:33:08,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 03:33:08,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673138362] [2023-11-29 03:33:08,504 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:33:08,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 03:33:08,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:08,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 03:33:08,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=330, Unknown=1, NotChecked=0, Total=462 [2023-11-29 03:33:08,505 INFO L87 Difference]: Start difference. First operand 2189 states and 2881 transitions. Second operand has 13 states, 12 states have (on average 4.5) internal successors, (54), 13 states have internal predecessors, (54), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:33:10,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:10,149 INFO L93 Difference]: Finished difference Result 2317 states and 3034 transitions. [2023-11-29 03:33:10,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:33:10,150 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.5) internal successors, (54), 13 states have internal predecessors, (54), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 61 [2023-11-29 03:33:10,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:10,154 INFO L225 Difference]: With dead ends: 2317 [2023-11-29 03:33:10,154 INFO L226 Difference]: Without dead ends: 2314 [2023-11-29 03:33:10,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 22.8s TimeCoverageRelationStatistics Valid=254, Invalid=737, Unknown=1, NotChecked=0, Total=992 [2023-11-29 03:33:10,155 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 211 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 999 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:10,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 232 Invalid, 1012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 999 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 03:33:10,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2314 states. [2023-11-29 03:33:10,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2314 to 2259. [2023-11-29 03:33:10,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2259 states, 2148 states have (on average 1.3054003724394785) internal successors, (2804), 2171 states have internal predecessors, (2804), 85 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2023-11-29 03:33:10,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2259 states to 2259 states and 2974 transitions. [2023-11-29 03:33:10,295 INFO L78 Accepts]: Start accepts. Automaton has 2259 states and 2974 transitions. Word has length 61 [2023-11-29 03:33:10,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:10,295 INFO L495 AbstractCegarLoop]: Abstraction has 2259 states and 2974 transitions. [2023-11-29 03:33:10,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.5) internal successors, (54), 13 states have internal predecessors, (54), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:33:10,296 INFO L276 IsEmpty]: Start isEmpty. Operand 2259 states and 2974 transitions. [2023-11-29 03:33:10,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 03:33:10,296 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:10,297 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:33:10,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2023-11-29 03:33:10,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:33:10,497 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:33:10,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:10,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1654229479, now seen corresponding path program 1 times [2023-11-29 03:33:10,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:10,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090924566] [2023-11-29 03:33:10,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:10,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:10,504 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:33:10,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1762573174] [2023-11-29 03:33:10,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:10,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:33:10,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:33:10,505 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:33:10,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-29 03:33:10,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:10,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 03:33:10,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:33:10,648 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:33:10,648 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:33:10,827 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:33:10,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:10,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090924566] [2023-11-29 03:33:10,827 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:33:10,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762573174] [2023-11-29 03:33:10,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762573174] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 03:33:10,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:33:10,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-29 03:33:10,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152137325] [2023-11-29 03:33:10,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:10,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:33:10,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:10,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:33:10,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:33:10,829 INFO L87 Difference]: Start difference. First operand 2259 states and 2974 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:33:11,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:11,378 INFO L93 Difference]: Finished difference Result 2949 states and 3878 transitions. [2023-11-29 03:33:11,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:33:11,378 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 61 [2023-11-29 03:33:11,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:11,381 INFO L225 Difference]: With dead ends: 2949 [2023-11-29 03:33:11,382 INFO L226 Difference]: Without dead ends: 2286 [2023-11-29 03:33:11,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 113 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:33:11,383 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 14 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:11,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 115 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:33:11,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2286 states. [2023-11-29 03:33:11,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2286 to 2273. [2023-11-29 03:33:11,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2273 states, 2159 states have (on average 1.2968967114404817) internal successors, (2800), 2181 states have internal predecessors, (2800), 89 states have call successors, (89), 2 states have call predecessors, (89), 2 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2023-11-29 03:33:11,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2273 states to 2273 states and 2978 transitions. [2023-11-29 03:33:11,546 INFO L78 Accepts]: Start accepts. Automaton has 2273 states and 2978 transitions. Word has length 61 [2023-11-29 03:33:11,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:11,547 INFO L495 AbstractCegarLoop]: Abstraction has 2273 states and 2978 transitions. [2023-11-29 03:33:11,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:33:11,547 INFO L276 IsEmpty]: Start isEmpty. Operand 2273 states and 2978 transitions. [2023-11-29 03:33:11,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 03:33:11,547 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:11,548 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:33:11,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2023-11-29 03:33:11,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:33:11,748 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:33:11,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:11,748 INFO L85 PathProgramCache]: Analyzing trace with hash -200015960, now seen corresponding path program 1 times [2023-11-29 03:33:11,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:11,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968441286] [2023-11-29 03:33:11,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:11,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:11,754 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:33:11,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [81071495] [2023-11-29 03:33:11,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:11,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:33:11,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:33:11,755 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:33:11,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-29 03:33:11,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:11,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 03:33:11,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:33:12,180 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:33:12,180 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:33:12,501 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:33:12,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:12,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968441286] [2023-11-29 03:33:12,502 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:33:12,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81071495] [2023-11-29 03:33:12,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81071495] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:33:12,502 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:33:12,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2023-11-29 03:33:12,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053114414] [2023-11-29 03:33:12,502 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:33:12,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 03:33:12,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:12,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 03:33:12,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2023-11-29 03:33:12,504 INFO L87 Difference]: Start difference. First operand 2273 states and 2978 transitions. Second operand has 19 states, 19 states have (on average 5.2631578947368425) internal successors, (100), 19 states have internal predecessors, (100), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 03:33:16,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:16,285 INFO L93 Difference]: Finished difference Result 3729 states and 4890 transitions. [2023-11-29 03:33:16,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-11-29 03:33:16,286 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.2631578947368425) internal successors, (100), 19 states have internal predecessors, (100), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 61 [2023-11-29 03:33:16,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:16,290 INFO L225 Difference]: With dead ends: 3729 [2023-11-29 03:33:16,290 INFO L226 Difference]: Without dead ends: 1802 [2023-11-29 03:33:16,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 585 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=582, Invalid=1868, Unknown=0, NotChecked=0, Total=2450 [2023-11-29 03:33:16,294 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 385 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 1438 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 1502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:16,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 389 Invalid, 1502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1438 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-29 03:33:16,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2023-11-29 03:33:16,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 1634. [2023-11-29 03:33:16,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1548 states have (on average 1.2848837209302326) internal successors, (1989), 1570 states have internal predecessors, (1989), 61 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2023-11-29 03:33:16,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2111 transitions. [2023-11-29 03:33:16,451 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2111 transitions. Word has length 61 [2023-11-29 03:33:16,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:16,452 INFO L495 AbstractCegarLoop]: Abstraction has 1634 states and 2111 transitions. [2023-11-29 03:33:16,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.2631578947368425) internal successors, (100), 19 states have internal predecessors, (100), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 03:33:16,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2111 transitions. [2023-11-29 03:33:16,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 03:33:16,452 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:16,452 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:33:16,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2023-11-29 03:33:16,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-11-29 03:33:16,653 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:33:16,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:16,653 INFO L85 PathProgramCache]: Analyzing trace with hash 116430242, now seen corresponding path program 1 times [2023-11-29 03:33:16,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:16,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188695723] [2023-11-29 03:33:16,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:16,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:16,659 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:33:16,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1717597960] [2023-11-29 03:33:16,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:16,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:33:16,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:33:16,661 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:33:16,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-29 03:33:16,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:16,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 03:33:16,741 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:33:16,985 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:33:16,985 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:33:16,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:16,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188695723] [2023-11-29 03:33:16,985 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:33:16,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717597960] [2023-11-29 03:33:16,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717597960] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:16,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:16,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:33:16,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819565617] [2023-11-29 03:33:16,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:16,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:33:16,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:16,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:33:16,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:33:16,987 INFO L87 Difference]: Start difference. First operand 1634 states and 2111 transitions. Second operand has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:33:21,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:21,683 INFO L93 Difference]: Finished difference Result 1639 states and 2111 transitions. [2023-11-29 03:33:21,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:33:21,683 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 62 [2023-11-29 03:33:21,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:21,686 INFO L225 Difference]: With dead ends: 1639 [2023-11-29 03:33:21,686 INFO L226 Difference]: Without dead ends: 1637 [2023-11-29 03:33:21,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:33:21,686 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 132 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:21,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 162 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-11-29 03:33:21,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1637 states. [2023-11-29 03:33:21,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1637 to 1028. [2023-11-29 03:33:21,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 966 states have (on average 1.25879917184265) internal successors, (1216), 987 states have internal predecessors, (1216), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 03:33:21,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1292 transitions. [2023-11-29 03:33:21,757 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1292 transitions. Word has length 62 [2023-11-29 03:33:21,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:21,757 INFO L495 AbstractCegarLoop]: Abstraction has 1028 states and 1292 transitions. [2023-11-29 03:33:21,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:33:21,757 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1292 transitions. [2023-11-29 03:33:21,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 03:33:21,758 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:21,758 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:33:21,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2023-11-29 03:33:21,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:33:21,959 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:33:21,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:21,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1921625871, now seen corresponding path program 1 times [2023-11-29 03:33:21,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:21,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447291135] [2023-11-29 03:33:21,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:21,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:21,966 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:33:21,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [218354324] [2023-11-29 03:33:21,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:21,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:33:21,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:33:21,967 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:33:21,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-29 03:33:22,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:22,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 03:33:22,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:33:25,809 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 03:33:25,809 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:33:46,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:46,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447291135] [2023-11-29 03:33:46,478 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:33:46,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218354324] [2023-11-29 03:33:46,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [218354324] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:33:46,478 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:33:46,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 03:33:46,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737823367] [2023-11-29 03:33:46,479 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:33:46,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 03:33:46,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:46,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 03:33:46,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=419, Unknown=2, NotChecked=0, Total=506 [2023-11-29 03:33:46,480 INFO L87 Difference]: Start difference. First operand 1028 states and 1292 transitions. Second operand has 14 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:33:51,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:33:55,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:33:59,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:34:03,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:34:07,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:34:11,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:34:22,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:34:26,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:34:32,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:34:33,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:34:33,209 INFO L93 Difference]: Finished difference Result 1032 states and 1294 transitions. [2023-11-29 03:34:33,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 03:34:33,209 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 62 [2023-11-29 03:34:33,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:34:33,211 INFO L225 Difference]: With dead ends: 1032 [2023-11-29 03:34:33,211 INFO L226 Difference]: Without dead ends: 1030 [2023-11-29 03:34:33,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 25.1s TimeCoverageRelationStatistics Valid=145, Invalid=664, Unknown=3, NotChecked=0, Total=812 [2023-11-29 03:34:33,212 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 109 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 874 mSolverCounterSat, 3 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 874 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:34:33,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 232 Invalid, 886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 874 Invalid, 9 Unknown, 0 Unchecked, 38.6s Time] [2023-11-29 03:34:33,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2023-11-29 03:34:33,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1028. [2023-11-29 03:34:33,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 966 states have (on average 1.2567287784679089) internal successors, (1214), 987 states have internal predecessors, (1214), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 03:34:33,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1290 transitions. [2023-11-29 03:34:33,320 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1290 transitions. Word has length 62 [2023-11-29 03:34:33,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:34:33,320 INFO L495 AbstractCegarLoop]: Abstraction has 1028 states and 1290 transitions. [2023-11-29 03:34:33,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:34:33,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1290 transitions. [2023-11-29 03:34:33,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 03:34:33,322 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:34:33,322 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:34:33,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2023-11-29 03:34:33,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-11-29 03:34:33,522 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:34:33,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:34:33,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1315888036, now seen corresponding path program 2 times [2023-11-29 03:34:33,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:34:33,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536497731] [2023-11-29 03:34:33,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:34:33,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:34:33,528 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:34:33,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1038053345] [2023-11-29 03:34:33,528 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:34:33,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:34:33,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:34:33,529 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:34:33,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-29 03:34:33,603 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:34:33,603 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:34:33,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 03:34:33,605 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:34:34,176 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 1 proven. 28 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:34:34,177 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:34:57,336 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:34:57,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:34:57,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536497731] [2023-11-29 03:34:57,336 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:34:57,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038053345] [2023-11-29 03:34:57,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038053345] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:34:57,337 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:34:57,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 20 [2023-11-29 03:34:57,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441070007] [2023-11-29 03:34:57,337 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:34:57,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-29 03:34:57,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:34:57,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-29 03:34:57,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=303, Unknown=2, NotChecked=0, Total=420 [2023-11-29 03:34:57,338 INFO L87 Difference]: Start difference. First operand 1028 states and 1290 transitions. Second operand has 21 states, 20 states have (on average 5.35) internal successors, (107), 21 states have internal predecessors, (107), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 03:35:09,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:35:13,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:35:17,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:35:21,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:35:26,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:35:30,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:35:34,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.87s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:35:37,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.55s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:35:42,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:35:46,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:35:50,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:35:53,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:35:57,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:36:01,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:36:05,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:36:09,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:36:13,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:36:17,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:36:23,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:36:27,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:36:32,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.35s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:36:33,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:36:37,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:36:41,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:36:44,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:36:48,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:36:52,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:36:58,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:37:02,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:37:04,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:37:09,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:37:13,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:37:17,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:37:18,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:37:18,420 INFO L93 Difference]: Finished difference Result 1146 states and 1418 transitions. [2023-11-29 03:37:18,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 03:37:18,420 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 5.35) internal successors, (107), 21 states have internal predecessors, (107), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 62 [2023-11-29 03:37:18,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:37:18,422 INFO L225 Difference]: With dead ends: 1146 [2023-11-29 03:37:18,423 INFO L226 Difference]: Without dead ends: 1145 [2023-11-29 03:37:18,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 20.6s TimeCoverageRelationStatistics Valid=422, Invalid=1057, Unknown=3, NotChecked=0, Total=1482 [2023-11-29 03:37:18,423 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 470 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 997 mSolverCounterSat, 68 mSolverCounterUnsat, 25 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 131.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 997 IncrementalHoareTripleChecker+Invalid, 25 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 132.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:37:18,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 209 Invalid, 1090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 997 Invalid, 25 Unknown, 0 Unchecked, 132.0s Time] [2023-11-29 03:37:18,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1145 states. [2023-11-29 03:37:18,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1145 to 1063. [2023-11-29 03:37:18,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1063 states, 1000 states have (on average 1.248) internal successors, (1248), 1021 states have internal predecessors, (1248), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2023-11-29 03:37:18,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1326 transitions. [2023-11-29 03:37:18,507 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1326 transitions. Word has length 62 [2023-11-29 03:37:18,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:37:18,507 INFO L495 AbstractCegarLoop]: Abstraction has 1063 states and 1326 transitions. [2023-11-29 03:37:18,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 5.35) internal successors, (107), 21 states have internal predecessors, (107), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 03:37:18,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1326 transitions. [2023-11-29 03:37:18,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 03:37:18,508 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:37:18,508 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:37:18,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2023-11-29 03:37:18,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:37:18,709 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:37:18,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:37:18,709 INFO L85 PathProgramCache]: Analyzing trace with hash -685629733, now seen corresponding path program 1 times [2023-11-29 03:37:18,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:37:18,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942322116] [2023-11-29 03:37:18,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:37:18,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:37:18,716 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:37:18,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1342446513] [2023-11-29 03:37:18,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:37:18,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:37:18,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:37:18,717 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:37:18,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-29 03:37:18,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:37:18,780 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 03:37:18,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:37:20,000 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:37:20,000 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:37:20,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:37:20,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942322116] [2023-11-29 03:37:20,000 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:37:20,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1342446513] [2023-11-29 03:37:20,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1342446513] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:37:20,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:37:20,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:37:20,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572961611] [2023-11-29 03:37:20,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:37:20,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:37:20,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:37:20,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:37:20,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:37:20,002 INFO L87 Difference]: Start difference. First operand 1063 states and 1326 transitions. Second operand has 8 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:37:23,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:37:23,140 INFO L93 Difference]: Finished difference Result 1065 states and 1326 transitions. [2023-11-29 03:37:23,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:37:23,141 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 63 [2023-11-29 03:37:23,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:37:23,143 INFO L225 Difference]: With dead ends: 1065 [2023-11-29 03:37:23,143 INFO L226 Difference]: Without dead ends: 1063 [2023-11-29 03:37:23,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:37:23,143 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 114 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:37:23,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 153 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-29 03:37:23,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2023-11-29 03:37:23,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 1062. [2023-11-29 03:37:23,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 1000 states have (on average 1.238) internal successors, (1238), 1020 states have internal predecessors, (1238), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2023-11-29 03:37:23,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1316 transitions. [2023-11-29 03:37:23,227 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1316 transitions. Word has length 63 [2023-11-29 03:37:23,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:37:23,227 INFO L495 AbstractCegarLoop]: Abstraction has 1062 states and 1316 transitions. [2023-11-29 03:37:23,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:37:23,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1316 transitions. [2023-11-29 03:37:23,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 03:37:23,228 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:37:23,228 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:37:23,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2023-11-29 03:37:23,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2023-11-29 03:37:23,428 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:37:23,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:37:23,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1702970748, now seen corresponding path program 1 times [2023-11-29 03:37:23,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:37:23,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656682993] [2023-11-29 03:37:23,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:37:23,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:37:23,434 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:37:23,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [430617656] [2023-11-29 03:37:23,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:37:23,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:37:23,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:37:23,435 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:37:23,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-29 03:37:23,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:37:23,488 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:37:23,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:37:24,545 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-29 03:37:24,545 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:37:24,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:37:24,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656682993] [2023-11-29 03:37:24,711 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:37:24,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430617656] [2023-11-29 03:37:24,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430617656] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:37:24,712 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:37:24,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 03:37:24,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068071685] [2023-11-29 03:37:24,712 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:37:24,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:37:24,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:37:24,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:37:24,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:37:24,713 INFO L87 Difference]: Start difference. First operand 1062 states and 1316 transitions. Second operand has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:37:27,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:37:27,872 INFO L93 Difference]: Finished difference Result 1157 states and 1424 transitions. [2023-11-29 03:37:27,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:37:27,872 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 63 [2023-11-29 03:37:27,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:37:27,875 INFO L225 Difference]: With dead ends: 1157 [2023-11-29 03:37:27,875 INFO L226 Difference]: Without dead ends: 1156 [2023-11-29 03:37:27,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:37:27,876 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 188 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:37:27,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 223 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-29 03:37:27,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2023-11-29 03:37:27,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1104. [2023-11-29 03:37:27,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1104 states, 1040 states have (on average 1.2336538461538462) internal successors, (1283), 1060 states have internal predecessors, (1283), 41 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2023-11-29 03:37:27,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1365 transitions. [2023-11-29 03:37:27,981 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1365 transitions. Word has length 63 [2023-11-29 03:37:27,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:37:27,981 INFO L495 AbstractCegarLoop]: Abstraction has 1104 states and 1365 transitions. [2023-11-29 03:37:27,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:37:27,981 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1365 transitions. [2023-11-29 03:37:27,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 03:37:27,982 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:37:27,982 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:37:27,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2023-11-29 03:37:28,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:37:28,182 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:37:28,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:37:28,182 INFO L85 PathProgramCache]: Analyzing trace with hash 2137823513, now seen corresponding path program 2 times [2023-11-29 03:37:28,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:37:28,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940216051] [2023-11-29 03:37:28,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:37:28,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:37:28,187 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:37:28,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1805779239] [2023-11-29 03:37:28,188 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:37:28,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:37:28,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:37:28,189 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:37:28,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-29 03:37:28,251 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:37:28,251 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:37:28,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 03:37:28,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:37:28,827 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 1 proven. 30 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:37:28,827 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:37:31,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:37:31,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940216051] [2023-11-29 03:37:31,297 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:37:31,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805779239] [2023-11-29 03:37:31,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805779239] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:37:31,297 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:37:31,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 03:37:31,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373623045] [2023-11-29 03:37:31,297 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:37:31,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:37:31,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:37:31,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:37:31,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:37:31,298 INFO L87 Difference]: Start difference. First operand 1104 states and 1365 transitions. Second operand has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 12 states have internal predecessors, (56), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:37:32,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:37:32,123 INFO L93 Difference]: Finished difference Result 1130 states and 1387 transitions. [2023-11-29 03:37:32,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:37:32,123 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 12 states have internal predecessors, (56), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 63 [2023-11-29 03:37:32,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:37:32,125 INFO L225 Difference]: With dead ends: 1130 [2023-11-29 03:37:32,125 INFO L226 Difference]: Without dead ends: 1127 [2023-11-29 03:37:32,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=168, Invalid=482, Unknown=0, NotChecked=0, Total=650 [2023-11-29 03:37:32,125 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 205 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:37:32,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 185 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 03:37:32,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2023-11-29 03:37:32,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1105. [2023-11-29 03:37:32,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1105 states, 1041 states have (on average 1.2305475504322767) internal successors, (1281), 1061 states have internal predecessors, (1281), 41 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2023-11-29 03:37:32,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 1363 transitions. [2023-11-29 03:37:32,212 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 1363 transitions. Word has length 63 [2023-11-29 03:37:32,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:37:32,212 INFO L495 AbstractCegarLoop]: Abstraction has 1105 states and 1363 transitions. [2023-11-29 03:37:32,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 12 states have internal predecessors, (56), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:37:32,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 1363 transitions. [2023-11-29 03:37:32,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 03:37:32,213 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:37:32,213 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:37:32,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2023-11-29 03:37:32,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:37:32,414 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 03:37:32,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:37:32,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1252485701, now seen corresponding path program 1 times [2023-11-29 03:37:32,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:37:32,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997680991] [2023-11-29 03:37:32,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:37:32,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:37:32,419 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:37:32,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1362881202] [2023-11-29 03:37:32,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:37:32,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:37:32,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:37:32,420 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:37:32,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_964be9da-3bc4-4400-b17d-065216822d5e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-29 03:37:32,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:37:32,470 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-29 03:37:32,472 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:37:33,434 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:37:33,434 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:38:08,549 WARN L293 SmtUtils]: Spent 5.03s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:38:40,847 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:38:40,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:38:40,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997680991] [2023-11-29 03:38:40,848 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:38:40,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362881202] [2023-11-29 03:38:40,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362881202] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:38:40,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:38:40,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 27 [2023-11-29 03:38:40,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407630508] [2023-11-29 03:38:40,848 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:38:40,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-29 03:38:40,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:38:40,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-29 03:38:40,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=617, Unknown=1, NotChecked=0, Total=756 [2023-11-29 03:38:40,849 INFO L87 Difference]: Start difference. First operand 1105 states and 1363 transitions. Second operand has 28 states, 27 states have (on average 4.185185185185185) internal successors, (113), 26 states have internal predecessors, (113), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 03:38:42,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-29 03:38:46,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:39:15,348 WARN L293 SmtUtils]: Spent 26.17s on a formula simplification. DAG size of input: 130 DAG size of output: 97 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:39:18,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:39:45,320 WARN L293 SmtUtils]: Spent 19.00s on a formula simplification. DAG size of input: 127 DAG size of output: 112 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:39:49,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:39:53,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.82s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:40:37,506 WARN L293 SmtUtils]: Spent 24.14s on a formula simplification. DAG size of input: 114 DAG size of output: 104 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:40:42,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:40:44,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:40:50,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:40:52,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:40:56,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:41:00,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:41:25,805 WARN L293 SmtUtils]: Spent 17.09s on a formula simplification. DAG size of input: 117 DAG size of output: 107 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:41:29,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:41:35,959 WARN L293 SmtUtils]: Spent 5.49s on a formula simplification. DAG size of input: 50 DAG size of output: 43 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:41:38,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:41:42,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:41:46,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:41:51,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:42:28,925 WARN L293 SmtUtils]: Spent 29.97s on a formula simplification. DAG size of input: 103 DAG size of output: 93 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:42:32,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:42:37,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:42:41,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:42:45,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:42:51,954 WARN L293 SmtUtils]: Spent 5.21s on a formula simplification. DAG size of input: 79 DAG size of output: 69 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:42:56,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:42:58,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:43:02,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:43:19,686 WARN L293 SmtUtils]: Spent 12.27s on a formula simplification that was a NOOP. DAG size: 59 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:44:07,693 WARN L293 SmtUtils]: Spent 35.23s on a formula simplification. DAG size of input: 112 DAG size of output: 97 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:44:11,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:44:16,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:44:20,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:44:25,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:44:30,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:44:31,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:44:36,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:44:39,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.85s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:44:44,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:44:48,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.82s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:44:52,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:44:55,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.83s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:44:57,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:45:01,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:45:07,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:45:12,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:45:42,094 WARN L293 SmtUtils]: Spent 7.76s on a formula simplification. DAG size of input: 75 DAG size of output: 67 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:45:45,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []