./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/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_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/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_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/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 97fbca6e87e25b4f87eb503f3dd8cdf02cc5219f6d8160a4d7fb4354cdd218ca --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:03:39,146 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:03:39,214 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 01:03:39,219 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:03:39,219 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:03:39,245 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:03:39,245 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:03:39,246 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:03:39,247 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:03:39,247 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:03:39,248 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:03:39,248 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:03:39,249 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:03:39,250 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:03:39,250 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:03:39,251 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:03:39,252 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:03:39,252 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:03:39,253 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:03:39,253 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:03:39,254 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:03:39,254 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:03:39,255 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:03:39,255 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:03:39,256 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 01:03:39,256 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 01:03:39,257 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:03:39,257 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:03:39,258 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:03:39,258 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:03:39,259 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:03:39,259 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:03:39,259 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:03:39,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:03:39,260 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:03:39,260 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:03:39,260 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:03:39,261 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:03:39,261 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:03:39,261 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:03:39,261 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:03:39,261 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:03:39,262 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:03:39,262 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:03:39,262 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_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97fbca6e87e25b4f87eb503f3dd8cdf02cc5219f6d8160a4d7fb4354cdd218ca [2023-11-29 01:03:39,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:03:39,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:03:39,495 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:03:39,496 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:03:39,497 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:03:39,498 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound20.c [2023-11-29 01:03:42,267 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:03:42,447 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:03:42,447 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound20.c [2023-11-29 01:03:42,455 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/data/175110245/5ed5370c32fb421fac30ae25f5764568/FLAG1ec5cc2f0 [2023-11-29 01:03:42,468 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/data/175110245/5ed5370c32fb421fac30ae25f5764568 [2023-11-29 01:03:42,469 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:03:42,471 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:03:42,472 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:03:42,472 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:03:42,477 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:03:42,478 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:03:42" (1/1) ... [2023-11-29 01:03:42,479 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66e49336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:03:42, skipping insertion in model container [2023-11-29 01:03:42,479 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:03:42" (1/1) ... [2023-11-29 01:03:42,497 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:03:42,631 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:03:42,641 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:03:42,661 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:03:42,675 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:03:42,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:03:42 WrapperNode [2023-11-29 01:03:42,676 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:03:42,677 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:03:42,677 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:03:42,677 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:03:42,682 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:03:42" (1/1) ... [2023-11-29 01:03:42,689 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:03:42" (1/1) ... [2023-11-29 01:03:42,716 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 110 [2023-11-29 01:03:42,716 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:03:42,717 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:03:42,717 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:03:42,717 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:03:42,726 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:03:42" (1/1) ... [2023-11-29 01:03:42,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:03:42" (1/1) ... [2023-11-29 01:03:42,728 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:03:42" (1/1) ... [2023-11-29 01:03:42,741 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 01:03:42,741 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:03:42" (1/1) ... [2023-11-29 01:03:42,741 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:03:42" (1/1) ... [2023-11-29 01:03:42,746 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:03:42" (1/1) ... [2023-11-29 01:03:42,749 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:03:42" (1/1) ... [2023-11-29 01:03:42,751 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:03:42" (1/1) ... [2023-11-29 01:03:42,752 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:03:42" (1/1) ... [2023-11-29 01:03:42,755 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:03:42,756 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:03:42,756 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:03:42,756 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:03:42,757 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:03:42" (1/1) ... [2023-11-29 01:03:42,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:03:42,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:42,787 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:03:42,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:03:42,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:03:42,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 01:03:42,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:03:42,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:03:42,819 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 01:03:42,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 01:03:42,886 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:03:42,888 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:03:43,209 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:03:43,236 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:03:43,236 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 01:03:43,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:03:43 BoogieIcfgContainer [2023-11-29 01:03:43,236 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:03:43,239 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:03:43,239 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:03:43,242 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:03:43,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:03:42" (1/3) ... [2023-11-29 01:03:43,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eaa039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:03:43, skipping insertion in model container [2023-11-29 01:03:43,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:03:42" (2/3) ... [2023-11-29 01:03:43,243 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eaa039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:03:43, skipping insertion in model container [2023-11-29 01:03:43,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:03:43" (3/3) ... [2023-11-29 01:03:43,244 INFO L112 eAbstractionObserver]: Analyzing ICFG prod4br-ll_unwindbound20.c [2023-11-29 01:03:43,259 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:03:43,259 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2023-11-29 01:03:43,307 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:03:43,315 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;@5767d052, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:03:43,316 INFO L358 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2023-11-29 01:03:43,321 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 01:03:43,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 01:03:43,327 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:43,328 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 01:03:43,329 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 01:03:43,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:43,335 INFO L85 PathProgramCache]: Analyzing trace with hash 175630532, now seen corresponding path program 1 times [2023-11-29 01:03:43,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:43,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634655378] [2023-11-29 01:03:43,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:43,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:43,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:43,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:43,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634655378] [2023-11-29 01:03:43,475 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:03:43,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704992223] [2023-11-29 01:03:43,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:43,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:43,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:43,477 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:03:43,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 01:03:43,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:43,554 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 01:03:43,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:03:43,571 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 01:03:43,571 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:03:43,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [704992223] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:43,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:43,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:03:43,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048621129] [2023-11-29 01:03:43,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:43,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 01:03:43,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:43,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 01:03:43,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:03:43,608 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 01:03:43,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:03:43,662 INFO L93 Difference]: Finished difference Result 210 states and 230 transitions. [2023-11-29 01:03:43,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 01:03:43,665 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 01:03:43,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:03:43,672 INFO L225 Difference]: With dead ends: 210 [2023-11-29 01:03:43,673 INFO L226 Difference]: Without dead ends: 103 [2023-11-29 01:03:43,676 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 01:03:43,680 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 01:03:43,682 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 01:03:43,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-11-29 01:03:43,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2023-11-29 01:03:43,721 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 01:03:43,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 108 transitions. [2023-11-29 01:03:43,725 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 108 transitions. Word has length 5 [2023-11-29 01:03:43,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:03:43,725 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 108 transitions. [2023-11-29 01:03:43,726 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 01:03:43,726 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 108 transitions. [2023-11-29 01:03:43,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 01:03:43,726 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:43,727 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 01:03:43,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-29 01:03:43,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 01:03:43,928 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 01:03:43,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:43,929 INFO L85 PathProgramCache]: Analyzing trace with hash 175686625, now seen corresponding path program 1 times [2023-11-29 01:03:43,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:43,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789446661] [2023-11-29 01:03:43,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:43,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:43,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:44,023 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 01:03:44,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:44,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789446661] [2023-11-29 01:03:44,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789446661] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:44,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:44,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:03:44,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163450543] [2023-11-29 01:03:44,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:44,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:03:44,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:44,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:03:44,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:03:44,028 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 01:03:44,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:03:44,084 INFO L93 Difference]: Finished difference Result 122 states and 127 transitions. [2023-11-29 01:03:44,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:03:44,085 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 01:03:44,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:03:44,086 INFO L225 Difference]: With dead ends: 122 [2023-11-29 01:03:44,087 INFO L226 Difference]: Without dead ends: 107 [2023-11-29 01:03:44,087 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 01:03:44,089 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 01:03:44,090 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 01:03:44,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-29 01:03:44,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2023-11-29 01:03:44,100 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 01:03:44,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 112 transitions. [2023-11-29 01:03:44,102 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 112 transitions. Word has length 5 [2023-11-29 01:03:44,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:03:44,102 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 112 transitions. [2023-11-29 01:03:44,102 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 01:03:44,102 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 112 transitions. [2023-11-29 01:03:44,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 01:03:44,103 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:44,103 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:03:44,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 01:03:44,103 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 01:03:44,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:44,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1684840623, now seen corresponding path program 1 times [2023-11-29 01:03:44,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:44,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894688977] [2023-11-29 01:03:44,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:44,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:44,117 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:03:44,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1963268144] [2023-11-29 01:03:44,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:44,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:44,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:44,120 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:03:44,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 01:03:44,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:44,172 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 01:03:44,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:03:44,350 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 01:03:44,350 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:03:44,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:44,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894688977] [2023-11-29 01:03:44,351 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:03:44,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963268144] [2023-11-29 01:03:44,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963268144] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:44,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:44,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:03:44,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712037994] [2023-11-29 01:03:44,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:44,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:03:44,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:44,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:03:44,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:03:44,354 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 01:03:44,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:03:44,663 INFO L93 Difference]: Finished difference Result 155 states and 167 transitions. [2023-11-29 01:03:44,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:03:44,664 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 01:03:44,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:03:44,666 INFO L225 Difference]: With dead ends: 155 [2023-11-29 01:03:44,666 INFO L226 Difference]: Without dead ends: 144 [2023-11-29 01:03:44,667 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 01:03:44,668 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 01:03:44,669 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 01:03:44,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-11-29 01:03:44,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 130. [2023-11-29 01:03:44,682 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 01:03:44,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 149 transitions. [2023-11-29 01:03:44,684 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 149 transitions. Word has length 8 [2023-11-29 01:03:44,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:03:44,684 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 149 transitions. [2023-11-29 01:03:44,685 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 01:03:44,685 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 149 transitions. [2023-11-29 01:03:44,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-29 01:03:44,685 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:44,685 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:03:44,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 01:03:44,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:44,895 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 01:03:44,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:44,895 INFO L85 PathProgramCache]: Analyzing trace with hash -690451704, now seen corresponding path program 1 times [2023-11-29 01:03:44,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:44,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152949015] [2023-11-29 01:03:44,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:44,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:44,903 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:03:44,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1077182026] [2023-11-29 01:03:44,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:44,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:44,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:44,905 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:03:44,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 01:03:44,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:44,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 01:03:44,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:03:45,058 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 01:03:45,059 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:03:45,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:45,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152949015] [2023-11-29 01:03:45,059 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:03:45,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077182026] [2023-11-29 01:03:45,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077182026] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:45,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:45,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:03:45,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991363994] [2023-11-29 01:03:45,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:45,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:03:45,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:45,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:03:45,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:03:45,062 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 01:03:45,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:03:45,330 INFO L93 Difference]: Finished difference Result 194 states and 221 transitions. [2023-11-29 01:03:45,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:03:45,332 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 01:03:45,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:03:45,334 INFO L225 Difference]: With dead ends: 194 [2023-11-29 01:03:45,334 INFO L226 Difference]: Without dead ends: 176 [2023-11-29 01:03:45,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 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 01:03:45,335 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 01:03:45,335 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 01:03:45,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-11-29 01:03:45,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 156. [2023-11-29 01:03:45,348 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 01:03:45,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 190 transitions. [2023-11-29 01:03:45,350 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 190 transitions. Word has length 9 [2023-11-29 01:03:45,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:03:45,351 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 190 transitions. [2023-11-29 01:03:45,351 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 01:03:45,351 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 190 transitions. [2023-11-29 01:03:45,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 01:03:45,352 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:45,352 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:03:45,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-29 01:03:45,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:45,555 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 01:03:45,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:45,555 INFO L85 PathProgramCache]: Analyzing trace with hash 70833715, now seen corresponding path program 1 times [2023-11-29 01:03:45,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:45,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241322996] [2023-11-29 01:03:45,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:45,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:45,564 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:03:45,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1639866205] [2023-11-29 01:03:45,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:45,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:45,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:45,566 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:03:45,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 01:03:45,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:45,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 01:03:45,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:03:45,644 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 01:03:45,644 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:03:45,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:45,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241322996] [2023-11-29 01:03:45,644 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:03:45,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639866205] [2023-11-29 01:03:45,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639866205] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:45,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:45,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:03:45,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461862251] [2023-11-29 01:03:45,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:45,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:03:45,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:45,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:03:45,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:03:45,646 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 01:03:45,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:03:45,835 INFO L93 Difference]: Finished difference Result 257 states and 299 transitions. [2023-11-29 01:03:45,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:03:45,836 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 01:03:45,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:03:45,838 INFO L225 Difference]: With dead ends: 257 [2023-11-29 01:03:45,838 INFO L226 Difference]: Without dead ends: 249 [2023-11-29 01:03:45,838 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 01:03:45,840 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 01:03:45,840 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 01:03:45,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2023-11-29 01:03:45,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 207. [2023-11-29 01:03:45,860 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 01:03:45,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 280 transitions. [2023-11-29 01:03:45,862 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 280 transitions. Word has length 10 [2023-11-29 01:03:45,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:03:45,862 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 280 transitions. [2023-11-29 01:03:45,862 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 01:03:45,862 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 280 transitions. [2023-11-29 01:03:45,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-29 01:03:45,863 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:45,863 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:03:45,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 01:03:46,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:46,067 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 01:03:46,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:46,067 INFO L85 PathProgramCache]: Analyzing trace with hash -2099122070, now seen corresponding path program 1 times [2023-11-29 01:03:46,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:46,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489749889] [2023-11-29 01:03:46,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:46,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:46,075 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:03:46,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1239459207] [2023-11-29 01:03:46,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:46,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:46,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:46,077 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:03:46,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 01:03:46,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:46,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 01:03:46,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:03:46,145 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 01:03:46,145 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:03:46,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:46,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489749889] [2023-11-29 01:03:46,145 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:03:46,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239459207] [2023-11-29 01:03:46,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239459207] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:46,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:46,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:03:46,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813586751] [2023-11-29 01:03:46,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:46,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:03:46,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:46,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:03:46,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:03:46,147 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 01:03:46,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:03:46,365 INFO L93 Difference]: Finished difference Result 251 states and 288 transitions. [2023-11-29 01:03:46,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:03:46,366 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 01:03:46,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:03:46,367 INFO L225 Difference]: With dead ends: 251 [2023-11-29 01:03:46,367 INFO L226 Difference]: Without dead ends: 244 [2023-11-29 01:03:46,367 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 01:03:46,368 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 01:03:46,369 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 01:03:46,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2023-11-29 01:03:46,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 203. [2023-11-29 01:03:46,382 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 01:03:46,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 271 transitions. [2023-11-29 01:03:46,384 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 271 transitions. Word has length 11 [2023-11-29 01:03:46,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:03:46,384 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 271 transitions. [2023-11-29 01:03:46,384 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 01:03:46,384 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 271 transitions. [2023-11-29 01:03:46,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 01:03:46,385 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:46,385 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:03:46,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 01:03:46,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 01:03:46,586 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 01:03:46,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:46,586 INFO L85 PathProgramCache]: Analyzing trace with hash -648274667, now seen corresponding path program 1 times [2023-11-29 01:03:46,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:46,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87675262] [2023-11-29 01:03:46,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:46,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:46,595 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:03:46,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1461961801] [2023-11-29 01:03:46,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:46,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:46,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:46,597 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:03:46,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 01:03:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:46,632 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:03:46,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:03:46,665 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 01:03:46,665 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:03:46,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:46,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87675262] [2023-11-29 01:03:46,665 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:03:46,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461961801] [2023-11-29 01:03:46,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461961801] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:46,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:46,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:03:46,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126233509] [2023-11-29 01:03:46,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:46,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:03:46,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:46,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:03:46,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:03:46,668 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 01:03:47,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:03:47,402 INFO L93 Difference]: Finished difference Result 329 states and 419 transitions. [2023-11-29 01:03:47,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:03:47,403 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 01:03:47,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:03:47,405 INFO L225 Difference]: With dead ends: 329 [2023-11-29 01:03:47,405 INFO L226 Difference]: Without dead ends: 328 [2023-11-29 01:03:47,406 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 01:03:47,407 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 85 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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 01:03:47,409 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 01:03:47,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2023-11-29 01:03:47,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 229. [2023-11-29 01:03:47,430 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 01:03:47,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 313 transitions. [2023-11-29 01:03:47,433 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 313 transitions. Word has length 12 [2023-11-29 01:03:47,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:03:47,433 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 313 transitions. [2023-11-29 01:03:47,433 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 01:03:47,433 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 313 transitions. [2023-11-29 01:03:47,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-29 01:03:47,434 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:47,435 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:03:47,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-29 01:03:47,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:47,636 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 01:03:47,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:47,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1378321868, now seen corresponding path program 1 times [2023-11-29 01:03:47,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:47,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455205832] [2023-11-29 01:03:47,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:47,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:47,645 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:03:47,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1776890381] [2023-11-29 01:03:47,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:47,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:47,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:47,647 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:03:47,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 01:03:47,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:47,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:03:47,683 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:03:47,710 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 01:03:47,710 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:03:47,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:47,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455205832] [2023-11-29 01:03:47,710 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:03:47,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776890381] [2023-11-29 01:03:47,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776890381] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:47,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:47,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:03:47,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267100661] [2023-11-29 01:03:47,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:47,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:03:47,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:47,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:03:47,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:03:47,712 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 01:03:48,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:03:48,394 INFO L93 Difference]: Finished difference Result 328 states and 417 transitions. [2023-11-29 01:03:48,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:03:48,395 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 01:03:48,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:03:48,397 INFO L225 Difference]: With dead ends: 328 [2023-11-29 01:03:48,397 INFO L226 Difference]: Without dead ends: 327 [2023-11-29 01:03:48,398 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 01:03:48,399 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 114 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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 01:03:48,399 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 01:03:48,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2023-11-29 01:03:48,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 229. [2023-11-29 01:03:48,408 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 01:03:48,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 311 transitions. [2023-11-29 01:03:48,409 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 311 transitions. Word has length 13 [2023-11-29 01:03:48,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:03:48,409 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 311 transitions. [2023-11-29 01:03:48,409 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 01:03:48,409 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 311 transitions. [2023-11-29 01:03:48,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 01:03:48,410 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:48,410 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 01:03:48,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 01:03:48,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:48,611 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 01:03:48,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:48,611 INFO L85 PathProgramCache]: Analyzing trace with hash 668928103, now seen corresponding path program 1 times [2023-11-29 01:03:48,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:48,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808836027] [2023-11-29 01:03:48,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:48,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:48,621 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:03:48,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1422911878] [2023-11-29 01:03:48,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:48,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:48,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:48,622 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:03:48,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 01:03:48,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:48,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:03:48,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:03:48,769 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 01:03:48,769 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:03:48,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:48,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808836027] [2023-11-29 01:03:48,770 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:03:48,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422911878] [2023-11-29 01:03:48,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422911878] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:48,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:48,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:03:48,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535882859] [2023-11-29 01:03:48,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:48,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:03:48,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:48,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:03:48,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:03:48,772 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 01:03:48,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:03:48,949 INFO L93 Difference]: Finished difference Result 242 states and 311 transitions. [2023-11-29 01:03:48,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:03:48,950 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 01:03:48,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:03:48,951 INFO L225 Difference]: With dead ends: 242 [2023-11-29 01:03:48,951 INFO L226 Difference]: Without dead ends: 241 [2023-11-29 01:03:48,952 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 01:03:48,953 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, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:03:48,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 178 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:03:48,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2023-11-29 01:03:48,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 229. [2023-11-29 01:03:48,962 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 01:03:48,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 310 transitions. [2023-11-29 01:03:48,963 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 310 transitions. Word has length 26 [2023-11-29 01:03:48,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:03:48,964 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 310 transitions. [2023-11-29 01:03:48,964 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 01:03:48,964 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 310 transitions. [2023-11-29 01:03:48,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 01:03:48,965 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:48,965 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 01:03:48,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-29 01:03:49,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:49,166 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 01:03:49,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:49,166 INFO L85 PathProgramCache]: Analyzing trace with hash -738065184, now seen corresponding path program 1 times [2023-11-29 01:03:49,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:49,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698659866] [2023-11-29 01:03:49,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:49,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:49,176 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:03:49,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1161632285] [2023-11-29 01:03:49,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:49,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:49,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:49,177 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:03:49,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 01:03:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:49,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:03:49,222 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:03:49,301 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 01:03:49,301 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:03:49,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:49,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698659866] [2023-11-29 01:03:49,301 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:03:49,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161632285] [2023-11-29 01:03:49,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161632285] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:49,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:49,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:03:49,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192248608] [2023-11-29 01:03:49,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:49,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:03:49,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:49,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:03:49,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:03:49,303 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 01:03:49,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:03:49,515 INFO L93 Difference]: Finished difference Result 270 states and 317 transitions. [2023-11-29 01:03:49,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:03:49,519 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 01:03:49,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:03:49,521 INFO L225 Difference]: With dead ends: 270 [2023-11-29 01:03:49,521 INFO L226 Difference]: Without dead ends: 266 [2023-11-29 01:03:49,521 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 01:03:49,522 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 01:03:49,522 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 01:03:49,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2023-11-29 01:03:49,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 226. [2023-11-29 01:03:49,533 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 01:03:49,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 302 transitions. [2023-11-29 01:03:49,535 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 302 transitions. Word has length 27 [2023-11-29 01:03:49,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:03:49,535 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 302 transitions. [2023-11-29 01:03:49,535 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 01:03:49,536 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 302 transitions. [2023-11-29 01:03:49,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 01:03:49,536 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:49,536 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 01:03:49,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 01:03:49,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 01:03:49,742 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 01:03:49,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:49,742 INFO L85 PathProgramCache]: Analyzing trace with hash -724674130, now seen corresponding path program 1 times [2023-11-29 01:03:49,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:49,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008231530] [2023-11-29 01:03:49,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:49,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:49,749 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:03:49,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [150736726] [2023-11-29 01:03:49,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:49,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:49,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:49,751 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:03:49,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 01:03:49,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:49,791 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 01:03:49,793 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:03:49,889 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 01:03:49,889 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:03:49,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:49,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008231530] [2023-11-29 01:03:49,889 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:03:49,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150736726] [2023-11-29 01:03:49,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150736726] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:49,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:49,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:03:49,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587775515] [2023-11-29 01:03:49,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:49,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:03:49,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:49,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:03:49,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:03:49,891 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 01:03:50,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:03:50,588 INFO L93 Difference]: Finished difference Result 287 states and 368 transitions. [2023-11-29 01:03:50,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:03:50,588 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 01:03:50,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:03:50,590 INFO L225 Difference]: With dead ends: 287 [2023-11-29 01:03:50,590 INFO L226 Difference]: Without dead ends: 283 [2023-11-29 01:03:50,591 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 01:03:50,592 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 01:03:50,592 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 01:03:50,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-11-29 01:03:50,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 253. [2023-11-29 01:03:50,601 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 01:03:50,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 344 transitions. [2023-11-29 01:03:50,603 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 344 transitions. Word has length 27 [2023-11-29 01:03:50,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:03:50,604 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 344 transitions. [2023-11-29 01:03:50,604 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 01:03:50,604 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 344 transitions. [2023-11-29 01:03:50,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 01:03:50,605 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:50,605 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 01:03:50,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 01:03:50,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:50,806 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 01:03:50,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:50,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1405184119, now seen corresponding path program 1 times [2023-11-29 01:03:50,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:50,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125206770] [2023-11-29 01:03:50,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:50,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:50,814 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:03:50,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1426861875] [2023-11-29 01:03:50,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:50,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:50,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:50,815 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:03:50,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 01:03:50,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:50,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:03:50,860 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:03:50,895 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 01:03:50,895 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:03:50,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:50,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125206770] [2023-11-29 01:03:50,895 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:03:50,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426861875] [2023-11-29 01:03:50,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426861875] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:50,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:50,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:03:50,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292708514] [2023-11-29 01:03:50,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:50,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:03:50,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:50,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:03:50,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:03:50,897 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 01:03:51,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:03:51,962 INFO L93 Difference]: Finished difference Result 343 states and 437 transitions. [2023-11-29 01:03:51,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:03:51,963 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 01:03:51,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:03:51,965 INFO L225 Difference]: With dead ends: 343 [2023-11-29 01:03:51,965 INFO L226 Difference]: Without dead ends: 342 [2023-11-29 01:03:51,965 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 01:03:51,966 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 01:03:51,966 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 01:03:51,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2023-11-29 01:03:51,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 263. [2023-11-29 01:03:51,976 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 01:03:51,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 359 transitions. [2023-11-29 01:03:51,978 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 359 transitions. Word has length 28 [2023-11-29 01:03:51,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:03:51,978 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 359 transitions. [2023-11-29 01:03:51,978 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 01:03:51,978 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 359 transitions. [2023-11-29 01:03:51,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 01:03:51,979 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:51,979 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 01:03:51,984 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 01:03:52,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 01:03:52,182 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 01:03:52,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:52,183 INFO L85 PathProgramCache]: Analyzing trace with hash -990061430, now seen corresponding path program 1 times [2023-11-29 01:03:52,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:52,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921548975] [2023-11-29 01:03:52,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:52,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:52,191 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:03:52,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1713643503] [2023-11-29 01:03:52,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:52,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:52,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:52,193 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:03:52,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 01:03:52,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:52,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:03:52,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:03:52,321 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 01:03:52,321 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:03:52,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:52,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921548975] [2023-11-29 01:03:52,322 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:03:52,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713643503] [2023-11-29 01:03:52,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713643503] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:52,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:52,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:03:52,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746772562] [2023-11-29 01:03:52,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:52,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:03:52,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:52,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:03:52,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:03:52,324 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 01:03:52,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:03:52,511 INFO L93 Difference]: Finished difference Result 300 states and 366 transitions. [2023-11-29 01:03:52,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:03:52,511 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 01:03:52,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:03:52,513 INFO L225 Difference]: With dead ends: 300 [2023-11-29 01:03:52,513 INFO L226 Difference]: Without dead ends: 296 [2023-11-29 01:03:52,514 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 01:03:52,514 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 01:03:52,515 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 01:03:52,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2023-11-29 01:03:52,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 263. [2023-11-29 01:03:52,527 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 01:03:52,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 354 transitions. [2023-11-29 01:03:52,529 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 354 transitions. Word has length 28 [2023-11-29 01:03:52,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:03:52,529 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 354 transitions. [2023-11-29 01:03:52,529 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 01:03:52,530 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 354 transitions. [2023-11-29 01:03:52,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 01:03:52,530 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:52,531 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 01:03:52,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 01:03:52,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 01:03:52,731 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 01:03:52,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:52,731 INFO L85 PathProgramCache]: Analyzing trace with hash -611034622, now seen corresponding path program 1 times [2023-11-29 01:03:52,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:52,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299212710] [2023-11-29 01:03:52,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:52,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:52,740 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:03:52,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1115837883] [2023-11-29 01:03:52,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:52,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:52,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:52,742 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:03:52,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 01:03:52,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:52,788 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:03:52,790 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:03:52,827 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 01:03:52,828 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:03:52,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:52,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299212710] [2023-11-29 01:03:52,828 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:03:52,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115837883] [2023-11-29 01:03:52,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115837883] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:52,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:52,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:03:52,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721309702] [2023-11-29 01:03:52,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:52,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:03:52,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:52,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:03:52,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:03:52,830 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 01:03:53,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:03:53,374 INFO L93 Difference]: Finished difference Result 342 states and 429 transitions. [2023-11-29 01:03:53,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:03:53,375 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 01:03:53,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:03:53,376 INFO L225 Difference]: With dead ends: 342 [2023-11-29 01:03:53,376 INFO L226 Difference]: Without dead ends: 341 [2023-11-29 01:03:53,377 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 01:03:53,377 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 67 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:03:53,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 202 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 01:03:53,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2023-11-29 01:03:53,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 265. [2023-11-29 01:03:53,388 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 01:03:53,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 356 transitions. [2023-11-29 01:03:53,390 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 356 transitions. Word has length 29 [2023-11-29 01:03:53,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:03:53,390 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 356 transitions. [2023-11-29 01:03:53,390 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 01:03:53,390 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 356 transitions. [2023-11-29 01:03:53,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 01:03:53,391 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:53,391 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 01:03:53,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 01:03:53,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 01:03:53,596 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 01:03:53,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:53,597 INFO L85 PathProgramCache]: Analyzing trace with hash -212964752, now seen corresponding path program 1 times [2023-11-29 01:03:53,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:53,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871045533] [2023-11-29 01:03:53,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:53,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:53,604 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:03:53,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [968266110] [2023-11-29 01:03:53,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:53,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:53,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:53,606 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:03:53,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 01:03:53,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:53,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:03:53,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:03:53,764 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 01:03:53,764 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:03:53,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:53,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871045533] [2023-11-29 01:03:53,765 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:03:53,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968266110] [2023-11-29 01:03:53,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [968266110] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:53,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:53,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:03:53,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009446877] [2023-11-29 01:03:53,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:53,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:03:53,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:53,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:03:53,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:03:53,767 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 01:03:55,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:03:55,253 INFO L93 Difference]: Finished difference Result 489 states and 647 transitions. [2023-11-29 01:03:55,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:03:55,253 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 01:03:55,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:03:55,256 INFO L225 Difference]: With dead ends: 489 [2023-11-29 01:03:55,256 INFO L226 Difference]: Without dead ends: 481 [2023-11-29 01:03:55,256 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 01:03:55,257 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 462 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:03:55,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 65 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 01:03:55,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2023-11-29 01:03:55,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 369. [2023-11-29 01:03:55,270 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 01:03:55,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 526 transitions. [2023-11-29 01:03:55,272 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 526 transitions. Word has length 29 [2023-11-29 01:03:55,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:03:55,273 INFO L495 AbstractCegarLoop]: Abstraction has 369 states and 526 transitions. [2023-11-29 01:03:55,273 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 01:03:55,273 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 526 transitions. [2023-11-29 01:03:55,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 01:03:55,274 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:55,274 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 01:03:55,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 01:03:55,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:55,477 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 01:03:55,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:55,477 INFO L85 PathProgramCache]: Analyzing trace with hash -627133136, now seen corresponding path program 1 times [2023-11-29 01:03:55,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:55,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467011851] [2023-11-29 01:03:55,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:55,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:55,484 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:03:55,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1580402391] [2023-11-29 01:03:55,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:55,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:55,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:55,486 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:03:55,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 01:03:55,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:55,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:03:55,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:03:55,591 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 01:03:55,591 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:03:55,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:55,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467011851] [2023-11-29 01:03:55,592 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:03:55,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580402391] [2023-11-29 01:03:55,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580402391] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:55,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:55,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:03:55,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553342073] [2023-11-29 01:03:55,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:55,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:03:55,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:55,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:03:55,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:03:55,594 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 01:03:56,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:03:56,214 INFO L93 Difference]: Finished difference Result 427 states and 574 transitions. [2023-11-29 01:03:56,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:03:56,214 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 01:03:56,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:03:56,217 INFO L225 Difference]: With dead ends: 427 [2023-11-29 01:03:56,217 INFO L226 Difference]: Without dead ends: 426 [2023-11-29 01:03:56,217 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 01:03:56,218 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 58 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:03:56,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 210 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 01:03:56,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2023-11-29 01:03:56,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 380. [2023-11-29 01:03:56,231 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 01:03:56,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 541 transitions. [2023-11-29 01:03:56,232 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 541 transitions. Word has length 29 [2023-11-29 01:03:56,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:03:56,232 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 541 transitions. [2023-11-29 01:03:56,233 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 01:03:56,233 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 541 transitions. [2023-11-29 01:03:56,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 01:03:56,233 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:56,234 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 01:03:56,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 01:03:56,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 01:03:56,434 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 01:03:56,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:56,435 INFO L85 PathProgramCache]: Analyzing trace with hash 823564061, now seen corresponding path program 1 times [2023-11-29 01:03:56,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:56,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908579809] [2023-11-29 01:03:56,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:56,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:56,442 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:03:56,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1540382118] [2023-11-29 01:03:56,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:56,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:56,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:56,444 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:03:56,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 01:03:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:56,488 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:03:56,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:03:56,530 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 01:03:56,530 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:03:56,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:56,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908579809] [2023-11-29 01:03:56,530 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:03:56,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540382118] [2023-11-29 01:03:56,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540382118] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:56,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:56,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:03:56,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678959655] [2023-11-29 01:03:56,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:56,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:03:56,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:56,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:03:56,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:03:56,532 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 01:03:56,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:03:56,555 INFO L93 Difference]: Finished difference Result 380 states and 541 transitions. [2023-11-29 01:03:56,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:03:56,555 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 01:03:56,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:03:56,558 INFO L225 Difference]: With dead ends: 380 [2023-11-29 01:03:56,558 INFO L226 Difference]: Without dead ends: 379 [2023-11-29 01:03:56,558 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 01:03:56,558 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 01:03:56,559 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 01:03:56,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2023-11-29 01:03:56,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2023-11-29 01:03:56,571 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 01:03:56,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 533 transitions. [2023-11-29 01:03:56,573 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 533 transitions. Word has length 30 [2023-11-29 01:03:56,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:03:56,573 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 533 transitions. [2023-11-29 01:03:56,573 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 01:03:56,574 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 533 transitions. [2023-11-29 01:03:56,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 01:03:56,574 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:56,574 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 01:03:56,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 01:03:56,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 01:03:56,779 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 01:03:56,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:56,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1988027418, now seen corresponding path program 1 times [2023-11-29 01:03:56,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:56,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834220154] [2023-11-29 01:03:56,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:56,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:56,786 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:03:56,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1191011519] [2023-11-29 01:03:56,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:56,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:56,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:56,788 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:03:56,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 01:03:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:56,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:03:56,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:03:56,924 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 01:03:56,924 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:03:56,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:56,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834220154] [2023-11-29 01:03:56,925 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:03:56,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191011519] [2023-11-29 01:03:56,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191011519] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:56,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:56,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:03:56,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554386750] [2023-11-29 01:03:56,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:56,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:03:56,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:56,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:03:56,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:03:56,927 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 01:03:57,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:03:57,342 INFO L93 Difference]: Finished difference Result 411 states and 570 transitions. [2023-11-29 01:03:57,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:03:57,342 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 01:03:57,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:03:57,344 INFO L225 Difference]: With dead ends: 411 [2023-11-29 01:03:57,345 INFO L226 Difference]: Without dead ends: 403 [2023-11-29 01:03:57,345 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 01:03:57,345 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, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:03:57,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 49 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:03:57,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2023-11-29 01:03:57,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 371. [2023-11-29 01:03:57,358 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 01:03:57,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 509 transitions. [2023-11-29 01:03:57,359 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 509 transitions. Word has length 30 [2023-11-29 01:03:57,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:03:57,360 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 509 transitions. [2023-11-29 01:03:57,360 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 01:03:57,360 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 509 transitions. [2023-11-29 01:03:57,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 01:03:57,360 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:57,360 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 01:03:57,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-29 01:03:57,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 01:03:57,562 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 01:03:57,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:57,563 INFO L85 PathProgramCache]: Analyzing trace with hash 2033709388, now seen corresponding path program 1 times [2023-11-29 01:03:57,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:57,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859493069] [2023-11-29 01:03:57,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:57,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:57,570 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:03:57,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [158328324] [2023-11-29 01:03:57,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:57,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:57,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:57,571 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:03:57,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 01:03:57,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:57,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:03:57,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:03:57,642 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 01:03:57,642 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:03:57,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:57,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859493069] [2023-11-29 01:03:57,642 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:03:57,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158328324] [2023-11-29 01:03:57,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158328324] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:57,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:57,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:03:57,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174483212] [2023-11-29 01:03:57,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:57,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:03:57,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:57,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:03:57,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:03:57,644 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 01:03:58,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:03:58,004 INFO L93 Difference]: Finished difference Result 408 states and 536 transitions. [2023-11-29 01:03:58,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:03:58,005 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 01:03:58,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:03:58,007 INFO L225 Difference]: With dead ends: 408 [2023-11-29 01:03:58,007 INFO L226 Difference]: Without dead ends: 407 [2023-11-29 01:03:58,007 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 01:03:58,007 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 47 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:03:58,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 181 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:03:58,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2023-11-29 01:03:58,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 373. [2023-11-29 01:03:58,028 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 01:03:58,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 511 transitions. [2023-11-29 01:03:58,029 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 511 transitions. Word has length 30 [2023-11-29 01:03:58,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:03:58,029 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 511 transitions. [2023-11-29 01:03:58,029 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 01:03:58,030 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 511 transitions. [2023-11-29 01:03:58,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-29 01:03:58,030 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:58,030 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 01:03:58,034 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 01:03:58,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:58,231 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 01:03:58,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:58,231 INFO L85 PathProgramCache]: Analyzing trace with hash -239317837, now seen corresponding path program 1 times [2023-11-29 01:03:58,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:58,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869474219] [2023-11-29 01:03:58,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:58,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:58,237 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:03:58,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [359792223] [2023-11-29 01:03:58,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:58,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:58,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:58,239 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:03:58,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 01:03:58,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:58,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:03:58,282 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:03:58,320 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 01:03:58,320 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:03:58,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:58,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869474219] [2023-11-29 01:03:58,320 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:03:58,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359792223] [2023-11-29 01:03:58,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359792223] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:58,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:58,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:03:58,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370778475] [2023-11-29 01:03:58,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:58,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:03:58,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:58,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:03:58,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:03:58,322 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 01:03:58,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:03:58,362 INFO L93 Difference]: Finished difference Result 384 states and 521 transitions. [2023-11-29 01:03:58,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:03:58,363 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 01:03:58,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:03:58,365 INFO L225 Difference]: With dead ends: 384 [2023-11-29 01:03:58,365 INFO L226 Difference]: Without dead ends: 383 [2023-11-29 01:03:58,365 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 01:03:58,366 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 01:03:58,366 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 01:03:58,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2023-11-29 01:03:58,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 379. [2023-11-29 01:03:58,382 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 01:03:58,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 510 transitions. [2023-11-29 01:03:58,384 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 510 transitions. Word has length 31 [2023-11-29 01:03:58,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:03:58,384 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 510 transitions. [2023-11-29 01:03:58,384 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 01:03:58,384 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 510 transitions. [2023-11-29 01:03:58,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-29 01:03:58,385 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:58,385 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 01:03:58,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 01:03:58,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:58,585 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 01:03:58,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:58,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1943794325, now seen corresponding path program 1 times [2023-11-29 01:03:58,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:58,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518969796] [2023-11-29 01:03:58,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:58,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:58,593 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:03:58,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1446701462] [2023-11-29 01:03:58,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:58,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:58,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:58,595 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:03:58,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 01:03:58,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:58,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 01:03:58,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:03:58,910 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 01:03:58,910 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:03:58,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:58,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518969796] [2023-11-29 01:03:58,910 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:03:58,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446701462] [2023-11-29 01:03:58,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446701462] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:58,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:58,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:03:58,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380782301] [2023-11-29 01:03:58,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:58,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:03:58,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:58,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:03:58,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:03:58,912 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 01:04:00,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:04:00,357 INFO L93 Difference]: Finished difference Result 485 states and 632 transitions. [2023-11-29 01:04:00,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 01:04:00,358 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 01:04:00,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:04:00,362 INFO L225 Difference]: With dead ends: 485 [2023-11-29 01:04:00,362 INFO L226 Difference]: Without dead ends: 479 [2023-11-29 01:04:00,362 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 01:04:00,363 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 01:04:00,363 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 01:04:00,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2023-11-29 01:04:00,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 432. [2023-11-29 01:04:00,381 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 01:04:00,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 587 transitions. [2023-11-29 01:04:00,382 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 587 transitions. Word has length 33 [2023-11-29 01:04:00,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:04:00,383 INFO L495 AbstractCegarLoop]: Abstraction has 432 states and 587 transitions. [2023-11-29 01:04:00,383 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 01:04:00,383 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 587 transitions. [2023-11-29 01:04:00,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-29 01:04:00,383 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:04:00,383 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 01:04:00,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 01:04:00,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-29 01:04:00,584 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 01:04:00,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:04:00,584 INFO L85 PathProgramCache]: Analyzing trace with hash 2020904180, now seen corresponding path program 1 times [2023-11-29 01:04:00,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:04:00,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538665903] [2023-11-29 01:04:00,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:00,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:04:00,592 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:04:00,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1209285083] [2023-11-29 01:04:00,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:00,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:04:00,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:04:00,593 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:04:00,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 01:04:00,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:04:00,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 01:04:00,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:04:00,793 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 01:04:00,793 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:04:00,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:04:00,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538665903] [2023-11-29 01:04:00,793 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:04:00,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209285083] [2023-11-29 01:04:00,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209285083] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:04:00,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:04:00,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:04:00,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771522604] [2023-11-29 01:04:00,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:04:00,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:04:00,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:04:00,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:04:00,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:04:00,795 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 01:04:01,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:04:01,516 INFO L93 Difference]: Finished difference Result 496 states and 641 transitions. [2023-11-29 01:04:01,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:04:01,517 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 01:04:01,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:04:01,519 INFO L225 Difference]: With dead ends: 496 [2023-11-29 01:04:01,519 INFO L226 Difference]: Without dead ends: 486 [2023-11-29 01:04:01,520 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 01:04:01,520 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, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:04:01,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 133 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 01:04:01,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2023-11-29 01:04:01,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 405. [2023-11-29 01:04:01,536 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 01:04:01,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 535 transitions. [2023-11-29 01:04:01,538 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 535 transitions. Word has length 33 [2023-11-29 01:04:01,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:04:01,538 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 535 transitions. [2023-11-29 01:04:01,538 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 01:04:01,539 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 535 transitions. [2023-11-29 01:04:01,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-29 01:04:01,539 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:04:01,539 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 01:04:01,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-29 01:04:01,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-29 01:04:01,741 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 01:04:01,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:04:01,741 INFO L85 PathProgramCache]: Analyzing trace with hash 128081988, now seen corresponding path program 1 times [2023-11-29 01:04:01,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:04:01,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430461004] [2023-11-29 01:04:01,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:01,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:04:01,746 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:04:01,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [174104389] [2023-11-29 01:04:01,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:01,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:04:01,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:04:01,747 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:04:01,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 01:04:01,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:04:01,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 01:04:01,846 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:04:02,079 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 01:04:02,079 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:04:02,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:04:02,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430461004] [2023-11-29 01:04:02,079 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:04:02,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174104389] [2023-11-29 01:04:02,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174104389] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:04:02,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:04:02,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:04:02,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519354849] [2023-11-29 01:04:02,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:04:02,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:04:02,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:04:02,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:04:02,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:04:02,081 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 01:04:03,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:04:03,484 INFO L93 Difference]: Finished difference Result 702 states and 898 transitions. [2023-11-29 01:04:03,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 01:04:03,484 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 01:04:03,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:04:03,487 INFO L225 Difference]: With dead ends: 702 [2023-11-29 01:04:03,487 INFO L226 Difference]: Without dead ends: 526 [2023-11-29 01:04:03,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2023-11-29 01:04:03,489 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 01:04:03,489 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 01:04:03,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2023-11-29 01:04:03,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 469. [2023-11-29 01:04:03,507 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 01:04:03,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 627 transitions. [2023-11-29 01:04:03,508 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 627 transitions. Word has length 34 [2023-11-29 01:04:03,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:04:03,509 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 627 transitions. [2023-11-29 01:04:03,509 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 01:04:03,509 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 627 transitions. [2023-11-29 01:04:03,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-29 01:04:03,509 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:04:03,509 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 01:04:03,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 01:04:03,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 01:04:03,710 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 01:04:03,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:04:03,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1776479714, now seen corresponding path program 1 times [2023-11-29 01:04:03,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:04:03,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939617645] [2023-11-29 01:04:03,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:03,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:04:03,715 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:04:03,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [785960679] [2023-11-29 01:04:03,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:03,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:04:03,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:04:03,717 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:04:03,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 01:04:03,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:04:03,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 01:04:03,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:04:03,897 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 01:04:03,897 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:04:03,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:04:03,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939617645] [2023-11-29 01:04:03,898 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:04:03,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785960679] [2023-11-29 01:04:03,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785960679] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:04:03,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:04:03,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:04:03,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890333211] [2023-11-29 01:04:03,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:04:03,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:04:03,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:04:03,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:04:03,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:04:03,899 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 01:04:04,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:04:04,563 INFO L93 Difference]: Finished difference Result 513 states and 663 transitions. [2023-11-29 01:04:04,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:04:04,564 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 01:04:04,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:04:04,567 INFO L225 Difference]: With dead ends: 513 [2023-11-29 01:04:04,567 INFO L226 Difference]: Without dead ends: 512 [2023-11-29 01:04:04,567 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 01:04:04,568 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 290 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:04:04,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 73 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 01:04:04,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2023-11-29 01:04:04,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 469. [2023-11-29 01:04:04,585 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 01:04:04,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 625 transitions. [2023-11-29 01:04:04,587 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 625 transitions. Word has length 34 [2023-11-29 01:04:04,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:04:04,587 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 625 transitions. [2023-11-29 01:04:04,587 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 01:04:04,587 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 625 transitions. [2023-11-29 01:04:04,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-29 01:04:04,588 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:04:04,588 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 01:04:04,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 01:04:04,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 01:04:04,789 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 01:04:04,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:04:04,789 INFO L85 PathProgramCache]: Analyzing trace with hash -324425609, now seen corresponding path program 1 times [2023-11-29 01:04:04,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:04:04,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393292152] [2023-11-29 01:04:04,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:04,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:04:04,796 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:04:04,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1338511046] [2023-11-29 01:04:04,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:04,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:04:04,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:04:04,798 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:04:04,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 01:04:04,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:04:04,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 01:04:04,848 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:04:05,160 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 01:04:05,160 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:04:11,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:04:11,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393292152] [2023-11-29 01:04:11,444 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:04:11,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338511046] [2023-11-29 01:04:11,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1338511046] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:04:11,444 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:04:11,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 01:04:11,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027645482] [2023-11-29 01:04:11,444 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:04:11,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:04:11,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:04:11,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:04:11,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:04:11,445 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 01:04:12,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:04:12,489 INFO L93 Difference]: Finished difference Result 534 states and 697 transitions. [2023-11-29 01:04:12,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:04:12,490 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 01:04:12,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:04:12,493 INFO L225 Difference]: With dead ends: 534 [2023-11-29 01:04:12,493 INFO L226 Difference]: Without dead ends: 533 [2023-11-29 01:04:12,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2023-11-29 01:04:12,494 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 191 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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 01:04:12,494 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 01:04:12,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2023-11-29 01:04:12,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 483. [2023-11-29 01:04:12,520 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 01:04:12,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 639 transitions. [2023-11-29 01:04:12,521 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 639 transitions. Word has length 35 [2023-11-29 01:04:12,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:04:12,521 INFO L495 AbstractCegarLoop]: Abstraction has 483 states and 639 transitions. [2023-11-29 01:04:12,521 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 01:04:12,522 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 639 transitions. [2023-11-29 01:04:12,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-29 01:04:12,522 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:04:12,522 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 01:04:12,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-29 01:04:12,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 01:04:12,723 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 01:04:12,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:04:12,723 INFO L85 PathProgramCache]: Analyzing trace with hash 763703862, now seen corresponding path program 1 times [2023-11-29 01:04:12,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:04:12,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810904389] [2023-11-29 01:04:12,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:12,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:04:12,729 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:04:12,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [713567220] [2023-11-29 01:04:12,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:12,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:04:12,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:04:12,730 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:04:12,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 01:04:12,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:04:12,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:04:12,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:04:12,802 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 01:04:12,803 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:04:12,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:04:12,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810904389] [2023-11-29 01:04:12,803 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:04:12,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713567220] [2023-11-29 01:04:12,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713567220] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:04:12,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:04:12,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:04:12,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252705862] [2023-11-29 01:04:12,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:04:12,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:04:12,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:04:12,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:04:12,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:04:12,805 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 01:04:13,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:04:13,675 INFO L93 Difference]: Finished difference Result 507 states and 655 transitions. [2023-11-29 01:04:13,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:04:13,675 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 01:04:13,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:04:13,677 INFO L225 Difference]: With dead ends: 507 [2023-11-29 01:04:13,678 INFO L226 Difference]: Without dead ends: 506 [2023-11-29 01:04:13,678 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 01:04:13,678 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 34 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 01:04:13,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 164 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 01:04:13,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2023-11-29 01:04:13,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 494. [2023-11-29 01:04:13,700 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 01:04:13,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 651 transitions. [2023-11-29 01:04:13,703 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 651 transitions. Word has length 35 [2023-11-29 01:04:13,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:04:13,703 INFO L495 AbstractCegarLoop]: Abstraction has 494 states and 651 transitions. [2023-11-29 01:04:13,703 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 01:04:13,703 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 651 transitions. [2023-11-29 01:04:13,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-29 01:04:13,704 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:04:13,704 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 01:04:13,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-29 01:04:13,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 01:04:13,904 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 01:04:13,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:04:13,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1967696964, now seen corresponding path program 1 times [2023-11-29 01:04:13,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:04:13,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989120761] [2023-11-29 01:04:13,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:13,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:04:13,911 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:04:13,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [556363888] [2023-11-29 01:04:13,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:13,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:04:13,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:04:13,912 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:04:13,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 01:04:13,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:04:13,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:04:13,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:04:14,131 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 01:04:14,131 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:04:14,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:04:14,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989120761] [2023-11-29 01:04:14,132 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:04:14,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556363888] [2023-11-29 01:04:14,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [556363888] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:04:14,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:04:14,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:04:14,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911429387] [2023-11-29 01:04:14,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:04:14,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:04:14,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:04:14,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:04:14,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:04:14,133 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 01:04:15,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:04:15,306 INFO L93 Difference]: Finished difference Result 856 states and 1136 transitions. [2023-11-29 01:04:15,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:04:15,307 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 01:04:15,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:04:15,310 INFO L225 Difference]: With dead ends: 856 [2023-11-29 01:04:15,310 INFO L226 Difference]: Without dead ends: 608 [2023-11-29 01:04:15,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:04:15,311 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 01:04:15,311 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 01:04:15,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2023-11-29 01:04:15,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 571. [2023-11-29 01:04:15,344 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 01:04:15,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 760 transitions. [2023-11-29 01:04:15,347 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 760 transitions. Word has length 35 [2023-11-29 01:04:15,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:04:15,347 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 760 transitions. [2023-11-29 01:04:15,347 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 01:04:15,347 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 760 transitions. [2023-11-29 01:04:15,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 01:04:15,348 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:04:15,348 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 01:04:15,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 01:04:15,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 01:04:15,549 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 01:04:15,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:04:15,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1467259226, now seen corresponding path program 1 times [2023-11-29 01:04:15,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:04:15,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298537595] [2023-11-29 01:04:15,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:15,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:04:15,553 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:04:15,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1389687150] [2023-11-29 01:04:15,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:15,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:04:15,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:04:15,555 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:04:15,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 01:04:15,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:04:15,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 01:04:15,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:04:16,099 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 01:04:16,099 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:04:18,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:04:18,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298537595] [2023-11-29 01:04:18,267 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:04:18,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389687150] [2023-11-29 01:04:18,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389687150] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:04:18,267 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:04:18,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 01:04:18,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130736677] [2023-11-29 01:04:18,268 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:04:18,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:04:18,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:04:18,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:04:18,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:04:18,269 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 01:04:19,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:04:19,119 INFO L93 Difference]: Finished difference Result 663 states and 866 transitions. [2023-11-29 01:04:19,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:04:19,119 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 01:04:19,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:04:19,123 INFO L225 Difference]: With dead ends: 663 [2023-11-29 01:04:19,123 INFO L226 Difference]: Without dead ends: 660 [2023-11-29 01:04:19,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2023-11-29 01:04:19,124 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 01:04:19,124 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 01:04:19,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2023-11-29 01:04:19,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 617. [2023-11-29 01:04:19,158 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 01:04:19,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 822 transitions. [2023-11-29 01:04:19,160 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 822 transitions. Word has length 36 [2023-11-29 01:04:19,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:04:19,161 INFO L495 AbstractCegarLoop]: Abstraction has 617 states and 822 transitions. [2023-11-29 01:04:19,161 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 01:04:19,161 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 822 transitions. [2023-11-29 01:04:19,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 01:04:19,162 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:04:19,162 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 01:04:19,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-29 01:04:19,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 01:04:19,362 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 01:04:19,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:04:19,363 INFO L85 PathProgramCache]: Analyzing trace with hash -2094983904, now seen corresponding path program 1 times [2023-11-29 01:04:19,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:04:19,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664461132] [2023-11-29 01:04:19,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:19,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:04:19,369 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:04:19,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [608621059] [2023-11-29 01:04:19,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:19,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:04:19,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:04:19,370 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:04:19,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 01:04:19,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:04:19,415 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:04:19,415 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:04:19,451 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 01:04:19,451 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:04:19,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:04:19,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664461132] [2023-11-29 01:04:19,452 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:04:19,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608621059] [2023-11-29 01:04:19,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608621059] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:04:19,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:04:19,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:04:19,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487930505] [2023-11-29 01:04:19,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:04:19,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:04:19,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:04:19,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:04:19,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:04:19,453 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 01:04:19,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:04:19,889 INFO L93 Difference]: Finished difference Result 629 states and 824 transitions. [2023-11-29 01:04:19,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:04:19,890 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 01:04:19,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:04:19,893 INFO L225 Difference]: With dead ends: 629 [2023-11-29 01:04:19,893 INFO L226 Difference]: Without dead ends: 628 [2023-11-29 01:04:19,894 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 01:04:19,894 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 01:04:19,895 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 01:04:19,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2023-11-29 01:04:19,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 618. [2023-11-29 01:04:19,927 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 01:04:19,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 822 transitions. [2023-11-29 01:04:19,930 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 822 transitions. Word has length 36 [2023-11-29 01:04:19,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:04:19,930 INFO L495 AbstractCegarLoop]: Abstraction has 618 states and 822 transitions. [2023-11-29 01:04:19,930 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 01:04:19,930 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 822 transitions. [2023-11-29 01:04:19,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 01:04:19,931 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:04:19,931 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 01:04:19,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-11-29 01:04:20,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 01:04:20,132 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 01:04:20,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:04:20,132 INFO L85 PathProgramCache]: Analyzing trace with hash 869063797, now seen corresponding path program 1 times [2023-11-29 01:04:20,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:04:20,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779636296] [2023-11-29 01:04:20,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:20,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:04:20,138 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:04:20,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1278474930] [2023-11-29 01:04:20,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:20,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:04:20,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:04:20,140 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:04:20,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 01:04:20,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:04:20,192 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:04:20,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:04:20,981 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 01:04:20,981 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:04:20,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:04:20,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779636296] [2023-11-29 01:04:20,981 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:04:20,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278474930] [2023-11-29 01:04:20,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278474930] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:04:20,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:04:20,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:04:20,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368185848] [2023-11-29 01:04:20,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:04:20,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:04:20,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:04:20,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:04:20,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:04:20,983 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 01:04:23,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:04:23,275 INFO L93 Difference]: Finished difference Result 705 states and 927 transitions. [2023-11-29 01:04:23,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:04:23,275 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 01:04:23,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:04:23,278 INFO L225 Difference]: With dead ends: 705 [2023-11-29 01:04:23,278 INFO L226 Difference]: Without dead ends: 687 [2023-11-29 01:04:23,278 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 01:04:23,279 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 217 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s 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, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:04:23,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 76 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 01:04:23,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2023-11-29 01:04:23,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 658. [2023-11-29 01:04:23,300 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 01:04:23,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 864 transitions. [2023-11-29 01:04:23,302 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 864 transitions. Word has length 36 [2023-11-29 01:04:23,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:04:23,302 INFO L495 AbstractCegarLoop]: Abstraction has 658 states and 864 transitions. [2023-11-29 01:04:23,302 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 01:04:23,302 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 864 transitions. [2023-11-29 01:04:23,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-29 01:04:23,302 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:04:23,303 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 01:04:23,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2023-11-29 01:04:23,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:04:23,503 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 01:04:23,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:04:23,503 INFO L85 PathProgramCache]: Analyzing trace with hash 339393682, now seen corresponding path program 1 times [2023-11-29 01:04:23,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:04:23,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9569074] [2023-11-29 01:04:23,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:23,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:04:23,509 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:04:23,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [750204702] [2023-11-29 01:04:23,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:23,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:04:23,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:04:23,510 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:04:23,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 01:04:23,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:04:23,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:04:23,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:04:24,415 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 01:04:24,415 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:04:24,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:04:24,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9569074] [2023-11-29 01:04:24,415 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:04:24,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750204702] [2023-11-29 01:04:24,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750204702] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:04:24,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:04:24,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:04:24,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049592023] [2023-11-29 01:04:24,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:04:24,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:04:24,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:04:24,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:04:24,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:04:24,417 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 01:04:26,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:04:26,217 INFO L93 Difference]: Finished difference Result 669 states and 872 transitions. [2023-11-29 01:04:26,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:04:26,217 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 01:04:26,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:04:26,220 INFO L225 Difference]: With dead ends: 669 [2023-11-29 01:04:26,220 INFO L226 Difference]: Without dead ends: 667 [2023-11-29 01:04:26,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:04:26,221 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 155 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:04:26,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 196 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 01:04:26,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2023-11-29 01:04:26,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 658. [2023-11-29 01:04:26,243 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 01:04:26,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 862 transitions. [2023-11-29 01:04:26,245 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 862 transitions. Word has length 38 [2023-11-29 01:04:26,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:04:26,245 INFO L495 AbstractCegarLoop]: Abstraction has 658 states and 862 transitions. [2023-11-29 01:04:26,245 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 01:04:26,245 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 862 transitions. [2023-11-29 01:04:26,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-29 01:04:26,246 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:04:26,246 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 01:04:26,250 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2023-11-29 01:04:26,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:04:26,446 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 01:04:26,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:04:26,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1931269615, now seen corresponding path program 1 times [2023-11-29 01:04:26,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:04:26,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207212979] [2023-11-29 01:04:26,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:26,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:04:26,452 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:04:26,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1025404892] [2023-11-29 01:04:26,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:26,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:04:26,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:04:26,454 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:04:26,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 01:04:26,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:04:26,497 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 01:04:26,498 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:04:26,807 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 01:04:26,808 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:04:27,286 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 01:04:27,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:04:27,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207212979] [2023-11-29 01:04:27,287 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:04:27,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025404892] [2023-11-29 01:04:27,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025404892] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:04:27,287 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:04:27,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2023-11-29 01:04:27,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698394991] [2023-11-29 01:04:27,287 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:04:27,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:04:27,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:04:27,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:04:27,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:04:27,288 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 01:04:30,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:04:31,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:04:32,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:04:32,251 INFO L93 Difference]: Finished difference Result 791 states and 1026 transitions. [2023-11-29 01:04:32,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 01:04:32,252 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 01:04:32,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:04:32,255 INFO L225 Difference]: With dead ends: 791 [2023-11-29 01:04:32,255 INFO L226 Difference]: Without dead ends: 789 [2023-11-29 01:04:32,255 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 01:04:32,256 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 450 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s 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, 4.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:04:32,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 157 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-11-29 01:04:32,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2023-11-29 01:04:32,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 721. [2023-11-29 01:04:32,284 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 01:04:32,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 944 transitions. [2023-11-29 01:04:32,286 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 944 transitions. Word has length 39 [2023-11-29 01:04:32,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:04:32,287 INFO L495 AbstractCegarLoop]: Abstraction has 721 states and 944 transitions. [2023-11-29 01:04:32,287 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 01:04:32,287 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 944 transitions. [2023-11-29 01:04:32,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-29 01:04:32,287 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:04:32,287 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 01:04:32,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-29 01:04:32,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:04:32,488 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 01:04:32,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:04:32,488 INFO L85 PathProgramCache]: Analyzing trace with hash 216774792, now seen corresponding path program 1 times [2023-11-29 01:04:32,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:04:32,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602475809] [2023-11-29 01:04:32,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:32,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:04:32,494 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:04:32,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [707101311] [2023-11-29 01:04:32,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:32,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:04:32,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:04:32,496 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:04:32,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 01:04:32,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:04:32,540 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 01:04:32,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:04:32,851 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 01:04:32,851 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:04:33,212 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 01:04:33,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:04:33,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602475809] [2023-11-29 01:04:33,212 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:04:33,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707101311] [2023-11-29 01:04:33,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707101311] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:04:33,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:04:33,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2023-11-29 01:04:33,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030713979] [2023-11-29 01:04:33,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:04:33,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:04:33,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:04:33,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:04:33,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:04:33,214 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 01:04:36,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:04:36,252 INFO L93 Difference]: Finished difference Result 724 states and 944 transitions. [2023-11-29 01:04:36,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:04:36,252 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 01:04:36,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:04:36,255 INFO L225 Difference]: With dead ends: 724 [2023-11-29 01:04:36,255 INFO L226 Difference]: Without dead ends: 723 [2023-11-29 01:04:36,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2023-11-29 01:04:36,256 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 127 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s 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, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:04:36,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 94 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 01:04:36,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2023-11-29 01:04:36,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 721. [2023-11-29 01:04:36,286 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 01:04:36,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 940 transitions. [2023-11-29 01:04:36,288 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 940 transitions. Word has length 39 [2023-11-29 01:04:36,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:04:36,288 INFO L495 AbstractCegarLoop]: Abstraction has 721 states and 940 transitions. [2023-11-29 01:04:36,288 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 01:04:36,288 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 940 transitions. [2023-11-29 01:04:36,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-29 01:04:36,289 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:04:36,289 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 01:04:36,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-29 01:04:36,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:04:36,489 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 01:04:36,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:04:36,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1869915975, now seen corresponding path program 1 times [2023-11-29 01:04:36,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:04:36,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432415339] [2023-11-29 01:04:36,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:36,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:04:36,495 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:04:36,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [127443258] [2023-11-29 01:04:36,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:36,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:04:36,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:04:36,496 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:04:36,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-29 01:04:36,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:04:36,534 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:04:36,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:04:36,626 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 01:04:36,626 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:04:36,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:04:36,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432415339] [2023-11-29 01:04:36,627 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:04:36,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [127443258] [2023-11-29 01:04:36,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [127443258] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:04:36,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:04:36,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:04:36,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888124905] [2023-11-29 01:04:36,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:04:36,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:04:36,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:04:36,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:04:36,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:04:36,628 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 01:04:37,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:04:37,034 INFO L93 Difference]: Finished difference Result 744 states and 952 transitions. [2023-11-29 01:04:37,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:04:37,034 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 01:04:37,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:04:37,037 INFO L225 Difference]: With dead ends: 744 [2023-11-29 01:04:37,037 INFO L226 Difference]: Without dead ends: 743 [2023-11-29 01:04:37,037 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 01:04:37,038 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, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:04:37,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 142 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:04:37,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2023-11-29 01:04:37,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 721. [2023-11-29 01:04:37,069 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 01:04:37,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 938 transitions. [2023-11-29 01:04:37,071 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 938 transitions. Word has length 40 [2023-11-29 01:04:37,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:04:37,071 INFO L495 AbstractCegarLoop]: Abstraction has 721 states and 938 transitions. [2023-11-29 01:04:37,071 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 01:04:37,071 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 938 transitions. [2023-11-29 01:04:37,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-29 01:04:37,072 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:04:37,072 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 01:04:37,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-29 01:04:37,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:04:37,272 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 01:04:37,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:04:37,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1482738928, now seen corresponding path program 1 times [2023-11-29 01:04:37,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:04:37,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335659392] [2023-11-29 01:04:37,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:37,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:04:37,279 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:04:37,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1157309754] [2023-11-29 01:04:37,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:37,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:04:37,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:04:37,280 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:04:37,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-29 01:04:37,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:04:37,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 01:04:37,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:04:37,481 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 01:04:37,482 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:04:37,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:04:37,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335659392] [2023-11-29 01:04:37,572 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:04:37,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157309754] [2023-11-29 01:04:37,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157309754] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:04:37,572 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:04:37,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 01:04:37,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368802607] [2023-11-29 01:04:37,572 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:04:37,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:04:37,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:04:37,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:04:37,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:04:37,573 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 01:04:38,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:04:38,766 INFO L93 Difference]: Finished difference Result 847 states and 1091 transitions. [2023-11-29 01:04:38,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:04:38,767 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 01:04:38,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:04:38,770 INFO L225 Difference]: With dead ends: 847 [2023-11-29 01:04:38,770 INFO L226 Difference]: Without dead ends: 841 [2023-11-29 01:04:38,770 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 01:04:38,771 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 01:04:38,771 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 01:04:38,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2023-11-29 01:04:38,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 805. [2023-11-29 01:04:38,807 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 01:04:38,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 1056 transitions. [2023-11-29 01:04:38,809 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 1056 transitions. Word has length 41 [2023-11-29 01:04:38,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:04:38,809 INFO L495 AbstractCegarLoop]: Abstraction has 805 states and 1056 transitions. [2023-11-29 01:04:38,809 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 01:04:38,809 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 1056 transitions. [2023-11-29 01:04:38,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 01:04:38,810 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:04:38,810 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 01:04:38,814 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2023-11-29 01:04:39,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-29 01:04:39,010 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 01:04:39,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:04:39,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1279733431, now seen corresponding path program 1 times [2023-11-29 01:04:39,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:04:39,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288194926] [2023-11-29 01:04:39,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:39,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:04:39,015 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:04:39,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [202663473] [2023-11-29 01:04:39,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:39,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:04:39,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:04:39,017 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:04:39,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-29 01:04:39,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:04:39,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 01:04:39,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:04:39,218 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 01:04:39,218 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:04:39,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:04:39,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288194926] [2023-11-29 01:04:39,350 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:04:39,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202663473] [2023-11-29 01:04:39,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202663473] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:04:39,350 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:04:39,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 01:04:39,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455891512] [2023-11-29 01:04:39,351 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:04:39,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:04:39,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:04:39,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:04:39,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:04:39,352 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 01:04:39,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:04:39,992 INFO L93 Difference]: Finished difference Result 842 states and 1101 transitions. [2023-11-29 01:04:39,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:04:39,992 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 01:04:39,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:04:39,995 INFO L225 Difference]: With dead ends: 842 [2023-11-29 01:04:39,996 INFO L226 Difference]: Without dead ends: 828 [2023-11-29 01:04:39,996 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 01:04:39,996 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 190 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:04:39,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 134 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 01:04:39,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2023-11-29 01:04:40,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 728. [2023-11-29 01:04:40,030 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 01:04:40,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 942 transitions. [2023-11-29 01:04:40,031 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 942 transitions. Word has length 42 [2023-11-29 01:04:40,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:04:40,031 INFO L495 AbstractCegarLoop]: Abstraction has 728 states and 942 transitions. [2023-11-29 01:04:40,031 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 01:04:40,031 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 942 transitions. [2023-11-29 01:04:40,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-29 01:04:40,032 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:04:40,032 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 01:04:40,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2023-11-29 01:04:40,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-11-29 01:04:40,232 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 01:04:40,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:04:40,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1886102324, now seen corresponding path program 1 times [2023-11-29 01:04:40,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:04:40,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243600638] [2023-11-29 01:04:40,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:40,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:04:40,238 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:04:40,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [348371587] [2023-11-29 01:04:40,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:40,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:04:40,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:04:40,239 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:04:40,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-29 01:04:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:04:40,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 01:04:40,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:04:40,634 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 01:04:40,634 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:04:40,773 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 01:04:40,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:04:40,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243600638] [2023-11-29 01:04:40,774 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:04:40,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348371587] [2023-11-29 01:04:40,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [348371587] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:04:40,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:04:40,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2023-11-29 01:04:40,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030372378] [2023-11-29 01:04:40,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:04:40,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:04:40,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:04:40,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:04:40,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:04:40,775 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 01:04:42,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:04:42,415 INFO L93 Difference]: Finished difference Result 739 states and 956 transitions. [2023-11-29 01:04:42,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:04:42,415 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 01:04:42,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:04:42,418 INFO L225 Difference]: With dead ends: 739 [2023-11-29 01:04:42,418 INFO L226 Difference]: Without dead ends: 738 [2023-11-29 01:04:42,418 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 01:04:42,419 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 117 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:04:42,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 72 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 01:04:42,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2023-11-29 01:04:42,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 736. [2023-11-29 01:04:42,456 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 01:04:42,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 943 transitions. [2023-11-29 01:04:42,457 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 943 transitions. Word has length 45 [2023-11-29 01:04:42,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:04:42,457 INFO L495 AbstractCegarLoop]: Abstraction has 736 states and 943 transitions. [2023-11-29 01:04:42,457 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 01:04:42,457 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 943 transitions. [2023-11-29 01:04:42,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-29 01:04:42,458 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:04:42,458 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 01:04:42,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2023-11-29 01:04:42,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:04:42,658 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 01:04:42,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:04:42,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1660370035, now seen corresponding path program 1 times [2023-11-29 01:04:42,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:04:42,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899628506] [2023-11-29 01:04:42,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:42,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:04:42,663 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:04:42,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [11374378] [2023-11-29 01:04:42,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:42,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:04:42,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:04:42,664 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:04:42,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-29 01:04:42,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:04:42,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 01:04:42,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:04:43,025 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 01:04:43,025 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:04:43,154 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 01:04:43,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:04:43,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899628506] [2023-11-29 01:04:43,154 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:04:43,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11374378] [2023-11-29 01:04:43,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11374378] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:04:43,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:04:43,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2023-11-29 01:04:43,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588794567] [2023-11-29 01:04:43,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:04:43,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:04:43,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:04:43,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:04:43,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:04:43,156 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 01:04:44,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:04:44,979 INFO L93 Difference]: Finished difference Result 741 states and 947 transitions. [2023-11-29 01:04:44,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:04:44,979 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 01:04:44,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:04:44,982 INFO L225 Difference]: With dead ends: 741 [2023-11-29 01:04:44,983 INFO L226 Difference]: Without dead ends: 740 [2023-11-29 01:04:44,983 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 01:04:44,983 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 117 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s 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, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:04:44,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 73 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 01:04:44,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2023-11-29 01:04:45,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 698. [2023-11-29 01:04:45,024 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 01:04:45,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 892 transitions. [2023-11-29 01:04:45,025 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 892 transitions. Word has length 46 [2023-11-29 01:04:45,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:04:45,025 INFO L495 AbstractCegarLoop]: Abstraction has 698 states and 892 transitions. [2023-11-29 01:04:45,025 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 01:04:45,025 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 892 transitions. [2023-11-29 01:04:45,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-29 01:04:45,026 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:04:45,026 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 01:04:45,030 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2023-11-29 01:04:45,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-29 01:04:45,227 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 01:04:45,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:04:45,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1559151077, now seen corresponding path program 1 times [2023-11-29 01:04:45,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:04:45,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764630025] [2023-11-29 01:04:45,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:45,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:04:45,232 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:04:45,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1542523464] [2023-11-29 01:04:45,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:45,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:04:45,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:04:45,233 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:04:45,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-29 01:04:45,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:04:45,275 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:04:45,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:04:45,319 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 01:04:45,319 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:04:45,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:04:45,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764630025] [2023-11-29 01:04:45,320 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:04:45,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542523464] [2023-11-29 01:04:45,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542523464] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:04:45,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:04:45,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:04:45,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737440766] [2023-11-29 01:04:45,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:04:45,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:04:45,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:04:45,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:04:45,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:04:45,321 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 01:04:45,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:04:45,726 INFO L93 Difference]: Finished difference Result 711 states and 897 transitions. [2023-11-29 01:04:45,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:04:45,727 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 01:04:45,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:04:45,730 INFO L225 Difference]: With dead ends: 711 [2023-11-29 01:04:45,730 INFO L226 Difference]: Without dead ends: 710 [2023-11-29 01:04:45,731 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 01:04:45,731 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 01:04:45,731 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 01:04:45,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2023-11-29 01:04:45,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 697. [2023-11-29 01:04:45,766 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 01:04:45,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 886 transitions. [2023-11-29 01:04:45,767 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 886 transitions. Word has length 52 [2023-11-29 01:04:45,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:04:45,767 INFO L495 AbstractCegarLoop]: Abstraction has 697 states and 886 transitions. [2023-11-29 01:04:45,767 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 01:04:45,767 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 886 transitions. [2023-11-29 01:04:45,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-29 01:04:45,768 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:04:45,768 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 01:04:45,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2023-11-29 01:04:45,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-29 01:04:45,969 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 01:04:45,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:04:45,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1130637334, now seen corresponding path program 1 times [2023-11-29 01:04:45,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:04:45,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620303162] [2023-11-29 01:04:45,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:45,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:04:45,974 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:04:45,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [291831451] [2023-11-29 01:04:45,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:45,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:04:45,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:04:45,975 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:04:45,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-29 01:04:46,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:04:46,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 01:04:46,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:05:19,828 WARN L293 SmtUtils]: Spent 12.49s on a formula simplification that was a NOOP. DAG size: 112 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 01:05:40,770 WARN L293 SmtUtils]: Spent 9.69s on a formula simplification that was a NOOP. DAG size: 106 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 01:06:11,321 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 01:06:11,321 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:06:19,324 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 01:06:19,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:06:19,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620303162] [2023-11-29 01:06:19,324 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:06:19,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291831451] [2023-11-29 01:06:19,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291831451] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:06:19,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:06:19,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2023-11-29 01:06:19,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911683447] [2023-11-29 01:06:19,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:06:19,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:06:19,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:06:19,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:06:19,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=282, Unknown=1, NotChecked=0, Total=342 [2023-11-29 01:06:19,326 INFO L87 Difference]: Start difference. First operand 697 states and 886 transitions. Second operand has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 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 01:06:22,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:06:22,321 INFO L93 Difference]: Finished difference Result 743 states and 931 transitions. [2023-11-29 01:06:22,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:06:22,322 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 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 52 [2023-11-29 01:06:22,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:06:22,325 INFO L225 Difference]: With dead ends: 743 [2023-11-29 01:06:22,325 INFO L226 Difference]: Without dead ends: 742 [2023-11-29 01:06:22,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 41.9s TimeCoverageRelationStatistics Valid=59, Invalid=282, Unknown=1, NotChecked=0, Total=342 [2023-11-29 01:06:22,326 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 53 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-29 01:06:22,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 213 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-29 01:06:22,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2023-11-29 01:06:22,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 696. [2023-11-29 01:06:22,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 647 states have (on average 1.2890262751159196) internal successors, (834), 669 states have internal predecessors, (834), 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 01:06:22,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 882 transitions. [2023-11-29 01:06:22,384 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 882 transitions. Word has length 52 [2023-11-29 01:06:22,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:06:22,385 INFO L495 AbstractCegarLoop]: Abstraction has 696 states and 882 transitions. [2023-11-29 01:06:22,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 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 01:06:22,385 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 882 transitions. [2023-11-29 01:06:22,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 01:06:22,385 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:06:22,386 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, 2, 1, 1, 1, 1, 1] [2023-11-29 01:06:22,390 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2023-11-29 01:06:22,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-29 01:06:22,586 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 01:06:22,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:06:22,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1089043041, now seen corresponding path program 1 times [2023-11-29 01:06:22,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:06:22,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729234995] [2023-11-29 01:06:22,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:06:22,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:06:22,591 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:06:22,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1481723407] [2023-11-29 01:06:22,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:06:22,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:06:22,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:06:22,592 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:06:22,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-29 01:06:22,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:06:22,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:06:22,636 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:06:22,675 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:06:22,675 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:06:22,726 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:06:22,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:06:22,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729234995] [2023-11-29 01:06:22,726 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:06:22,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481723407] [2023-11-29 01:06:22,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481723407] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:06:22,727 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:06:22,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 01:06:22,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502108004] [2023-11-29 01:06:22,727 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:06:22,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:06:22,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:06:22,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:06:22,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:06:22,728 INFO L87 Difference]: Start difference. First operand 696 states and 882 transitions. Second operand has 6 states, 5 states have (on average 17.4) internal successors, (87), 6 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 01:06:24,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:06:24,584 INFO L93 Difference]: Finished difference Result 1856 states and 2409 transitions. [2023-11-29 01:06:24,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:06:24,585 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 6 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 53 [2023-11-29 01:06:24,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:06:24,591 INFO L225 Difference]: With dead ends: 1856 [2023-11-29 01:06:24,591 INFO L226 Difference]: Without dead ends: 1855 [2023-11-29 01:06:24,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:06:24,592 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 257 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:06:24,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 237 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 01:06:24,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1855 states. [2023-11-29 01:06:24,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1855 to 1764. [2023-11-29 01:06:24,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1764 states, 1680 states have (on average 1.3410714285714285) internal successors, (2253), 1702 states have internal predecessors, (2253), 59 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-11-29 01:06:24,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 2371 transitions. [2023-11-29 01:06:24,684 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 2371 transitions. Word has length 53 [2023-11-29 01:06:24,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:06:24,684 INFO L495 AbstractCegarLoop]: Abstraction has 1764 states and 2371 transitions. [2023-11-29 01:06:24,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 6 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 01:06:24,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 2371 transitions. [2023-11-29 01:06:24,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 01:06:24,685 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:06:24,685 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 01:06:24,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2023-11-29 01:06:24,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:06:24,886 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 01:06:24,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:06:24,886 INFO L85 PathProgramCache]: Analyzing trace with hash -690018866, now seen corresponding path program 1 times [2023-11-29 01:06:24,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:06:24,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214656158] [2023-11-29 01:06:24,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:06:24,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:06:24,893 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:06:24,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [427220848] [2023-11-29 01:06:24,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:06:24,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:06:24,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:06:24,894 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:06:24,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-29 01:06:24,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:06:24,936 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 01:06:24,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:06:25,091 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 01:06:25,091 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:06:25,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:06:25,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214656158] [2023-11-29 01:06:25,714 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:06:25,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427220848] [2023-11-29 01:06:25,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427220848] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:06:25,715 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:06:25,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 01:06:25,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842987684] [2023-11-29 01:06:25,715 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:06:25,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:06:25,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:06:25,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:06:25,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:06:25,716 INFO L87 Difference]: Start difference. First operand 1764 states and 2371 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 01:06:27,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:06:27,367 INFO L93 Difference]: Finished difference Result 1806 states and 2383 transitions. [2023-11-29 01:06:27,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:06:27,368 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 01:06:27,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:06:27,375 INFO L225 Difference]: With dead ends: 1806 [2023-11-29 01:06:27,375 INFO L226 Difference]: Without dead ends: 1805 [2023-11-29 01:06:27,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2023-11-29 01:06:27,376 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 320 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:06:27,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 215 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 01:06:27,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1805 states. [2023-11-29 01:06:27,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1805 to 1764. [2023-11-29 01:06:27,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1764 states, 1680 states have (on average 1.338690476190476) internal successors, (2249), 1702 states have internal predecessors, (2249), 59 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-11-29 01:06:27,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 2367 transitions. [2023-11-29 01:06:27,484 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 2367 transitions. Word has length 53 [2023-11-29 01:06:27,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:06:27,484 INFO L495 AbstractCegarLoop]: Abstraction has 1764 states and 2367 transitions. [2023-11-29 01:06:27,484 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 01:06:27,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 2367 transitions. [2023-11-29 01:06:27,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 01:06:27,485 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:06:27,485 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 01:06:27,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2023-11-29 01:06:27,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:06:27,685 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 01:06:27,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:06:27,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1909629101, now seen corresponding path program 1 times [2023-11-29 01:06:27,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:06:27,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168677422] [2023-11-29 01:06:27,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:06:27,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:06:27,691 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:06:27,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [819350925] [2023-11-29 01:06:27,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:06:27,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:06:27,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:06:27,692 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:06:27,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-29 01:06:27,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:06:27,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 01:06:27,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:06:27,808 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 01:06:27,808 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:06:27,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:06:27,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168677422] [2023-11-29 01:06:27,808 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:06:27,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819350925] [2023-11-29 01:06:27,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819350925] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:06:27,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:06:27,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:06:27,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857966344] [2023-11-29 01:06:27,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:06:27,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:06:27,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:06:27,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:06:27,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:06:27,810 INFO L87 Difference]: Start difference. First operand 1764 states and 2367 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 01:06:28,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:06:28,282 INFO L93 Difference]: Finished difference Result 3002 states and 4051 transitions. [2023-11-29 01:06:28,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:06:28,283 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 01:06:28,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:06:28,290 INFO L225 Difference]: With dead ends: 3002 [2023-11-29 01:06:28,290 INFO L226 Difference]: Without dead ends: 1968 [2023-11-29 01:06:28,291 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 01:06:28,291 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 21 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 122 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 01:06:28,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 122 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:06:28,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1968 states. [2023-11-29 01:06:28,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1968 to 1457. [2023-11-29 01:06:28,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1457 states, 1386 states have (on average 1.321067821067821) internal successors, (1831), 1408 states have internal predecessors, (1831), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-29 01:06:28,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 1923 transitions. [2023-11-29 01:06:28,376 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 1923 transitions. Word has length 55 [2023-11-29 01:06:28,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:06:28,376 INFO L495 AbstractCegarLoop]: Abstraction has 1457 states and 1923 transitions. [2023-11-29 01:06:28,376 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 01:06:28,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 1923 transitions. [2023-11-29 01:06:28,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 01:06:28,377 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:06:28,377 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 01:06:28,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2023-11-29 01:06:28,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2023-11-29 01:06:28,577 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 01:06:28,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:06:28,578 INFO L85 PathProgramCache]: Analyzing trace with hash -142152452, now seen corresponding path program 1 times [2023-11-29 01:06:28,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:06:28,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537059835] [2023-11-29 01:06:28,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:06:28,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:06:28,584 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:06:28,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [902710826] [2023-11-29 01:06:28,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:06:28,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:06:28,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:06:28,585 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:06:28,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-29 01:06:28,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:06:28,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:06:28,625 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:06:28,692 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 01:06:28,692 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:06:28,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:06:28,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537059835] [2023-11-29 01:06:28,692 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:06:28,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902710826] [2023-11-29 01:06:28,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [902710826] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:06:28,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:06:28,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:06:28,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180888790] [2023-11-29 01:06:28,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:06:28,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:06:28,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:06:28,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:06:28,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:06:28,694 INFO L87 Difference]: Start difference. First operand 1457 states and 1923 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 01:06:29,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:06:29,052 INFO L93 Difference]: Finished difference Result 2643 states and 3531 transitions. [2023-11-29 01:06:29,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:06:29,052 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 01:06:29,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:06:29,058 INFO L225 Difference]: With dead ends: 2643 [2023-11-29 01:06:29,058 INFO L226 Difference]: Without dead ends: 1535 [2023-11-29 01:06:29,059 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 01:06:29,059 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 11 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:06:29,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 115 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:06:29,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2023-11-29 01:06:29,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 1508. [2023-11-29 01:06:29,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1508 states, 1428 states have (on average 1.3144257703081232) internal successors, (1877), 1450 states have internal predecessors, (1877), 55 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2023-11-29 01:06:29,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1508 states to 1508 states and 1987 transitions. [2023-11-29 01:06:29,153 INFO L78 Accepts]: Start accepts. Automaton has 1508 states and 1987 transitions. Word has length 55 [2023-11-29 01:06:29,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:06:29,153 INFO L495 AbstractCegarLoop]: Abstraction has 1508 states and 1987 transitions. [2023-11-29 01:06:29,153 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 01:06:29,153 INFO L276 IsEmpty]: Start isEmpty. Operand 1508 states and 1987 transitions. [2023-11-29 01:06:29,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-29 01:06:29,154 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:06:29,154 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 01:06:29,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2023-11-29 01:06:29,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2023-11-29 01:06:29,355 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 01:06:29,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:06:29,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1235316272, now seen corresponding path program 1 times [2023-11-29 01:06:29,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:06:29,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759622381] [2023-11-29 01:06:29,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:06:29,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:06:29,362 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:06:29,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1504376017] [2023-11-29 01:06:29,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:06:29,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:06:29,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:06:29,363 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:06:29,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-29 01:06:29,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:06:29,421 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 01:06:29,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:06:29,698 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 01:06:29,698 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:06:33,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:06:33,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759622381] [2023-11-29 01:06:33,986 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:06:33,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504376017] [2023-11-29 01:06:33,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504376017] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:06:33,987 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:06:33,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 01:06:33,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233635809] [2023-11-29 01:06:33,987 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:06:33,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 01:06:33,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:06:33,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 01:06:33,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=143, Unknown=1, NotChecked=0, Total=210 [2023-11-29 01:06:33,988 INFO L87 Difference]: Start difference. First operand 1508 states and 1987 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 01:06:35,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:06:35,523 INFO L93 Difference]: Finished difference Result 1647 states and 2148 transitions. [2023-11-29 01:06:35,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:06:35,524 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 01:06:35,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:06:35,530 INFO L225 Difference]: With dead ends: 1647 [2023-11-29 01:06:35,530 INFO L226 Difference]: Without dead ends: 1645 [2023-11-29 01:06:35,531 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 01:06:35,531 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 268 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:06:35,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 188 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 01:06:35,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1645 states. [2023-11-29 01:06:35,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1645 to 1559. [2023-11-29 01:06:35,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1559 states, 1477 states have (on average 1.3161814488828707) internal successors, (1944), 1499 states have internal predecessors, (1944), 57 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2023-11-29 01:06:35,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 2058 transitions. [2023-11-29 01:06:35,647 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 2058 transitions. Word has length 58 [2023-11-29 01:06:35,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:06:35,647 INFO L495 AbstractCegarLoop]: Abstraction has 1559 states and 2058 transitions. [2023-11-29 01:06:35,648 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 01:06:35,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 2058 transitions. [2023-11-29 01:06:35,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 01:06:35,648 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:06:35,648 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 01:06:35,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2023-11-29 01:06:35,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2023-11-29 01:06:35,849 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 01:06:35,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:06:35,849 INFO L85 PathProgramCache]: Analyzing trace with hash -359901086, now seen corresponding path program 1 times [2023-11-29 01:06:35,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:06:35,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755783806] [2023-11-29 01:06:35,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:06:35,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:06:35,854 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:06:35,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1299484013] [2023-11-29 01:06:35,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:06:35,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:06:35,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:06:35,855 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:06:35,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-29 01:06:35,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:06:35,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 01:06:35,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:06:36,252 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 01:06:36,252 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:06:40,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:06:40,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755783806] [2023-11-29 01:06:40,417 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:06:40,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299484013] [2023-11-29 01:06:40,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299484013] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:06:40,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:06:40,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 01:06:40,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054972916] [2023-11-29 01:06:40,418 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:06:40,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 01:06:40,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:06:40,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 01:06:40,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=130, Unknown=1, NotChecked=0, Total=182 [2023-11-29 01:06:40,419 INFO L87 Difference]: Start difference. First operand 1559 states and 2058 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 01:06:42,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:06:42,562 INFO L93 Difference]: Finished difference Result 1759 states and 2289 transitions. [2023-11-29 01:06:42,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:06:42,562 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 01:06:42,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:06:42,565 INFO L225 Difference]: With dead ends: 1759 [2023-11-29 01:06:42,565 INFO L226 Difference]: Without dead ends: 1757 [2023-11-29 01:06:42,566 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 01:06:42,566 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 272 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 01:06:42,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 247 Invalid, 1048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1025 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 01:06:42,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1757 states. [2023-11-29 01:06:42,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1757 to 1678. [2023-11-29 01:06:42,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1678 states, 1591 states have (on average 1.31803896920176) internal successors, (2097), 1613 states have internal predecessors, (2097), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2023-11-29 01:06:42,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1678 states to 1678 states and 2221 transitions. [2023-11-29 01:06:42,674 INFO L78 Accepts]: Start accepts. Automaton has 1678 states and 2221 transitions. Word has length 59 [2023-11-29 01:06:42,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:06:42,674 INFO L495 AbstractCegarLoop]: Abstraction has 1678 states and 2221 transitions. [2023-11-29 01:06:42,674 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 01:06:42,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1678 states and 2221 transitions. [2023-11-29 01:06:42,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-29 01:06:42,675 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:06:42,675 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 01:06:42,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2023-11-29 01:06:42,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2023-11-29 01:06:42,876 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 01:06:42,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:06:42,876 INFO L85 PathProgramCache]: Analyzing trace with hash 639838899, now seen corresponding path program 2 times [2023-11-29 01:06:42,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:06:42,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912100559] [2023-11-29 01:06:42,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:06:42,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:06:42,881 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:06:42,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [460463831] [2023-11-29 01:06:42,882 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:06:42,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:06:42,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:06:42,883 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:06:42,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-29 01:06:42,953 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:06:42,953 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:06:42,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 01:06:42,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:06:43,417 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 01:06:43,417 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:06:49,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:06:49,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912100559] [2023-11-29 01:06:49,359 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:06:49,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460463831] [2023-11-29 01:06:49,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460463831] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:06:49,359 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:06:49,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 01:06:49,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75941413] [2023-11-29 01:06:49,359 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:06:49,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:06:49,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:06:49,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:06:49,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2023-11-29 01:06:49,360 INFO L87 Difference]: Start difference. First operand 1678 states and 2221 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 01:06:50,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:06:50,885 INFO L93 Difference]: Finished difference Result 1726 states and 2268 transitions. [2023-11-29 01:06:50,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 01:06:50,885 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 01:06:50,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:06:50,888 INFO L225 Difference]: With dead ends: 1726 [2023-11-29 01:06:50,888 INFO L226 Difference]: Without dead ends: 1725 [2023-11-29 01:06:50,889 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 01:06:50,889 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 200 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 914 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:06:50,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 228 Invalid, 923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 914 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 01:06:50,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1725 states. [2023-11-29 01:06:50,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1725 to 1691. [2023-11-29 01:06:51,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1691 states, 1604 states have (on average 1.314214463840399) internal successors, (2108), 1626 states have internal predecessors, (2108), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2023-11-29 01:06:51,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2232 transitions. [2023-11-29 01:06:51,003 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2232 transitions. Word has length 60 [2023-11-29 01:06:51,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:06:51,003 INFO L495 AbstractCegarLoop]: Abstraction has 1691 states and 2232 transitions. [2023-11-29 01:06:51,003 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 01:06:51,003 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2232 transitions. [2023-11-29 01:06:51,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 01:06:51,003 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:06:51,004 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 01:06:51,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2023-11-29 01:06:51,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-11-29 01:06:51,204 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 01:06:51,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:06:51,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1639830550, now seen corresponding path program 2 times [2023-11-29 01:06:51,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:06:51,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540468634] [2023-11-29 01:06:51,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:06:51,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:06:51,211 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:06:51,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1736271151] [2023-11-29 01:06:51,212 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:06:51,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:06:51,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:06:51,213 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:06:51,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-29 01:06:51,492 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:06:51,492 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:06:51,494 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 01:06:51,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:06:51,979 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 01:06:51,980 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:07:14,474 WARN L293 SmtUtils]: Spent 9.40s 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 01:07:26,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:26,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540468634] [2023-11-29 01:07:26,527 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:07:26,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736271151] [2023-11-29 01:07:26,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736271151] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:07:26,527 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:07:26,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 01:07:26,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903950795] [2023-11-29 01:07:26,528 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:07:26,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:07:26,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:26,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:07:26,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=330, Unknown=1, NotChecked=0, Total=462 [2023-11-29 01:07:26,529 INFO L87 Difference]: Start difference. First operand 1691 states and 2232 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 01:07:28,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:28,155 INFO L93 Difference]: Finished difference Result 1761 states and 2305 transitions. [2023-11-29 01:07:28,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 01:07:28,156 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 01:07:28,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:28,158 INFO L225 Difference]: With dead ends: 1761 [2023-11-29 01:07:28,158 INFO L226 Difference]: Without dead ends: 1758 [2023-11-29 01:07:28,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 20.7s TimeCoverageRelationStatistics Valid=254, Invalid=737, Unknown=1, NotChecked=0, Total=992 [2023-11-29 01:07:28,160 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 212 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:28,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 243 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 01:07:28,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1758 states. [2023-11-29 01:07:28,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1758 to 1722. [2023-11-29 01:07:28,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1722 states, 1633 states have (on average 1.3123086344151869) internal successors, (2143), 1655 states have internal predecessors, (2143), 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 01:07:28,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1722 states to 1722 states and 2271 transitions. [2023-11-29 01:07:28,267 INFO L78 Accepts]: Start accepts. Automaton has 1722 states and 2271 transitions. Word has length 61 [2023-11-29 01:07:28,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:28,267 INFO L495 AbstractCegarLoop]: Abstraction has 1722 states and 2271 transitions. [2023-11-29 01:07:28,267 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 01:07:28,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1722 states and 2271 transitions. [2023-11-29 01:07:28,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 01:07:28,267 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:28,268 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 01:07:28,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2023-11-29 01:07:28,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-11-29 01:07:28,468 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 01:07:28,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:28,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1654229479, now seen corresponding path program 1 times [2023-11-29 01:07:28,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:28,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791630765] [2023-11-29 01:07:28,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:28,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:28,474 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:07:28,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1988841273] [2023-11-29 01:07:28,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:28,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:28,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:07:28,475 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:07:28,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-29 01:07:28,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:28,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:07:28,520 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:28,613 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 01:07:28,613 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:07:28,789 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 01:07:28,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:28,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791630765] [2023-11-29 01:07:28,789 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:07:28,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988841273] [2023-11-29 01:07:28,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988841273] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:07:28,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:07:28,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-29 01:07:28,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564056722] [2023-11-29 01:07:28,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:28,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:07:28,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:28,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:07:28,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:07:28,791 INFO L87 Difference]: Start difference. First operand 1722 states and 2271 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 01:07:29,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:29,255 INFO L93 Difference]: Finished difference Result 2288 states and 3023 transitions. [2023-11-29 01:07:29,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:07:29,255 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 01:07:29,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:29,257 INFO L225 Difference]: With dead ends: 2288 [2023-11-29 01:07:29,258 INFO L226 Difference]: Without dead ends: 1723 [2023-11-29 01:07:29,258 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 01:07:29,259 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 14 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:29,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 114 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:07:29,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2023-11-29 01:07:29,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1715. [2023-11-29 01:07:29,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1627 states have (on average 1.2980946527350952) internal successors, (2112), 1648 states have internal predecessors, (2112), 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 01:07:29,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2240 transitions. [2023-11-29 01:07:29,370 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2240 transitions. Word has length 61 [2023-11-29 01:07:29,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:29,370 INFO L495 AbstractCegarLoop]: Abstraction has 1715 states and 2240 transitions. [2023-11-29 01:07:29,370 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 01:07:29,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2240 transitions. [2023-11-29 01:07:29,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 01:07:29,371 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:29,371 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 01:07:29,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2023-11-29 01:07:29,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-11-29 01:07:29,571 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 01:07:29,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:29,572 INFO L85 PathProgramCache]: Analyzing trace with hash -200015960, now seen corresponding path program 1 times [2023-11-29 01:07:29,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:29,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957309849] [2023-11-29 01:07:29,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:29,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:29,579 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:07:29,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [15371949] [2023-11-29 01:07:29,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:29,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:29,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:07:29,581 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:07:29,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-29 01:07:29,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:29,629 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 01:07:29,631 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:30,004 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 01:07:30,004 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:07:30,335 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 01:07:30,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:30,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957309849] [2023-11-29 01:07:30,335 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:07:30,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15371949] [2023-11-29 01:07:30,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15371949] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:07:30,335 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:07:30,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2023-11-29 01:07:30,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803725845] [2023-11-29 01:07:30,336 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:07:30,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 01:07:30,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:30,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 01:07:30,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2023-11-29 01:07:30,337 INFO L87 Difference]: Start difference. First operand 1715 states and 2240 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 01:07:33,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:33,870 INFO L93 Difference]: Finished difference Result 3450 states and 4546 transitions. [2023-11-29 01:07:33,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-11-29 01:07:33,871 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 01:07:33,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:33,874 INFO L225 Difference]: With dead ends: 3450 [2023-11-29 01:07:33,874 INFO L226 Difference]: Without dead ends: 2000 [2023-11-29 01:07:33,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 586 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=582, Invalid=1868, Unknown=0, NotChecked=0, Total=2450 [2023-11-29 01:07:33,876 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 590 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 1343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:33,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [592 Valid, 331 Invalid, 1343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1256 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-29 01:07:33,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2000 states. [2023-11-29 01:07:34,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2000 to 1844. [2023-11-29 01:07:34,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1844 states, 1751 states have (on average 1.2981153626499142) internal successors, (2273), 1772 states have internal predecessors, (2273), 69 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2023-11-29 01:07:34,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1844 states to 1844 states and 2411 transitions. [2023-11-29 01:07:34,004 INFO L78 Accepts]: Start accepts. Automaton has 1844 states and 2411 transitions. Word has length 61 [2023-11-29 01:07:34,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:34,004 INFO L495 AbstractCegarLoop]: Abstraction has 1844 states and 2411 transitions. [2023-11-29 01:07:34,004 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 01:07:34,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1844 states and 2411 transitions. [2023-11-29 01:07:34,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 01:07:34,005 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:34,005 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 01:07:34,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2023-11-29 01:07:34,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:34,205 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 01:07:34,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:34,206 INFO L85 PathProgramCache]: Analyzing trace with hash 116430242, now seen corresponding path program 1 times [2023-11-29 01:07:34,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:34,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541243825] [2023-11-29 01:07:34,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:34,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:34,212 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:07:34,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [669238761] [2023-11-29 01:07:34,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:34,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:34,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:07:34,213 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:07:34,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-29 01:07:34,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:34,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 01:07:34,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:34,778 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 01:07:34,778 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:08:07,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:08:07,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541243825] [2023-11-29 01:08:07,556 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:08:07,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669238761] [2023-11-29 01:08:07,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669238761] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:08:07,556 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:08:07,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 01:08:07,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165266945] [2023-11-29 01:08:07,557 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:08:07,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 01:08:07,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:08:07,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 01:08:07,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=222, Unknown=2, NotChecked=0, Total=306 [2023-11-29 01:08:07,558 INFO L87 Difference]: Start difference. First operand 1844 states and 2411 transitions. Second operand has 11 states, 10 states have (on average 5.5) internal successors, (55), 11 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 01:08:09,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:08:09,059 INFO L93 Difference]: Finished difference Result 1919 states and 2491 transitions. [2023-11-29 01:08:09,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:08:09,060 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.5) internal successors, (55), 11 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 01:08:09,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:08:09,063 INFO L225 Difference]: With dead ends: 1919 [2023-11-29 01:08:09,063 INFO L226 Difference]: Without dead ends: 1918 [2023-11-29 01:08:09,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=182, Invalid=518, Unknown=2, NotChecked=0, Total=702 [2023-11-29 01:08:09,064 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 171 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:08:09,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 167 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 01:08:09,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1918 states. [2023-11-29 01:08:09,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1918 to 1880. [2023-11-29 01:08:09,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1880 states, 1786 states have (on average 1.2973124300111982) internal successors, (2317), 1807 states have internal predecessors, (2317), 70 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2023-11-29 01:08:09,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1880 states to 1880 states and 2457 transitions. [2023-11-29 01:08:09,189 INFO L78 Accepts]: Start accepts. Automaton has 1880 states and 2457 transitions. Word has length 62 [2023-11-29 01:08:09,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:08:09,190 INFO L495 AbstractCegarLoop]: Abstraction has 1880 states and 2457 transitions. [2023-11-29 01:08:09,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.5) internal successors, (55), 11 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 01:08:09,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1880 states and 2457 transitions. [2023-11-29 01:08:09,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 01:08:09,190 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:08:09,191 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 01:08:09,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2023-11-29 01:08:09,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:08:09,391 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 01:08:09,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:08:09,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1921625871, now seen corresponding path program 1 times [2023-11-29 01:08:09,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:08:09,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989407349] [2023-11-29 01:08:09,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:08:09,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:08:09,397 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:08:09,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [868662171] [2023-11-29 01:08:09,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:08:09,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:08:09,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:08:09,398 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:08:09,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-29 01:08:09,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:08:09,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 01:08:09,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:08:11,605 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 01:08:11,605 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:08:34,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:08:34,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989407349] [2023-11-29 01:08:34,658 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:08:34,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868662171] [2023-11-29 01:08:34,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868662171] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:08:34,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:08:34,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 01:08:34,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295000708] [2023-11-29 01:08:34,658 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:08:34,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 01:08:34,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:08:34,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 01:08:34,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=457, Unknown=1, NotChecked=0, Total=552 [2023-11-29 01:08:34,659 INFO L87 Difference]: Start difference. First operand 1880 states and 2457 transitions. Second operand has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 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 01:08:38,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 01:08:42,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:08:42,400 INFO L93 Difference]: Finished difference Result 1882 states and 2457 transitions. [2023-11-29 01:08:42,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 01:08:42,401 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 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 01:08:42,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:08:42,404 INFO L225 Difference]: With dead ends: 1882 [2023-11-29 01:08:42,404 INFO L226 Difference]: Without dead ends: 1880 [2023-11-29 01:08:42,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 24.0s TimeCoverageRelationStatistics Valid=155, Invalid=714, Unknown=1, NotChecked=0, Total=870 [2023-11-29 01:08:42,404 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 117 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-29 01:08:42,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 209 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-29 01:08:42,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1880 states. [2023-11-29 01:08:42,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1880 to 1880. [2023-11-29 01:08:42,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1880 states, 1786 states have (on average 1.2961926091825309) internal successors, (2315), 1807 states have internal predecessors, (2315), 70 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2023-11-29 01:08:42,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1880 states to 1880 states and 2455 transitions. [2023-11-29 01:08:42,569 INFO L78 Accepts]: Start accepts. Automaton has 1880 states and 2455 transitions. Word has length 62 [2023-11-29 01:08:42,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:08:42,569 INFO L495 AbstractCegarLoop]: Abstraction has 1880 states and 2455 transitions. [2023-11-29 01:08:42,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 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 01:08:42,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1880 states and 2455 transitions. [2023-11-29 01:08:42,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 01:08:42,570 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:08:42,570 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 01:08:42,574 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2023-11-29 01:08:42,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:08:42,771 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 01:08:42,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:08:42,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1315888036, now seen corresponding path program 2 times [2023-11-29 01:08:42,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:08:42,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638705010] [2023-11-29 01:08:42,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:08:42,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:08:42,776 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:08:42,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1003509631] [2023-11-29 01:08:42,776 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:08:42,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:08:42,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:08:42,777 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:08:42,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-29 01:08:42,848 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:08:42,848 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:08:42,849 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 01:08:42,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:08:43,364 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 01:08:43,365 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:09:08,043 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 01:09:08,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:09:08,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638705010] [2023-11-29 01:09:08,043 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:09:08,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003509631] [2023-11-29 01:09:08,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1003509631] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:09:08,043 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:09:08,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 20 [2023-11-29 01:09:08,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849174255] [2023-11-29 01:09:08,044 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:09:08,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-29 01:09:08,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:09:08,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-29 01:09:08,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=304, Unknown=1, NotChecked=0, Total=420 [2023-11-29 01:09:08,045 INFO L87 Difference]: Start difference. First operand 1880 states and 2455 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 01:09:14,330 WARN L293 SmtUtils]: Spent 5.36s on a formula simplification. DAG size of input: 68 DAG size of output: 56 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 01:09:25,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:09:29,345 WARN L539 Checker$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 01:09:33,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.74s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:09:37,301 WARN L539 Checker$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 01:09:41,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:09:45,893 WARN L539 Checker$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 01:09:50,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:09:54,370 WARN L539 Checker$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 01:09:57,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:10:03,060 WARN L539 Checker$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 01:10:07,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:10:11,152 WARN L539 Checker$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 01:10:15,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:10:19,580 WARN L539 Checker$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 01:10:23,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:10:27,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.61s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:10:31,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:10:35,371 WARN L539 Checker$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 01:10:39,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:10:41,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:10:47,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.97s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:10:51,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:10:56,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.53s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:10:58,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:10:58,468 INFO L93 Difference]: Finished difference Result 1962 states and 2537 transitions. [2023-11-29 01:10:58,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 01:10:58,469 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 01:10:58,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:10:58,472 INFO L225 Difference]: With dead ends: 1962 [2023-11-29 01:10:58,472 INFO L226 Difference]: Without dead ends: 1961 [2023-11-29 01:10:58,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 21.6s TimeCoverageRelationStatistics Valid=422, Invalid=1058, Unknown=2, NotChecked=0, Total=1482 [2023-11-29 01:10:58,473 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 397 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 1102 mSolverCounterSat, 50 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 97.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 1168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1102 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 97.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:10:58,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 272 Invalid, 1168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1102 Invalid, 16 Unknown, 0 Unchecked, 97.6s Time] [2023-11-29 01:10:58,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1961 states. [2023-11-29 01:10:58,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1961 to 1893. [2023-11-29 01:10:58,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1893 states, 1799 states have (on average 1.28349082823791) internal successors, (2309), 1820 states have internal predecessors, (2309), 70 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2023-11-29 01:10:58,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1893 states to 1893 states and 2449 transitions. [2023-11-29 01:10:58,622 INFO L78 Accepts]: Start accepts. Automaton has 1893 states and 2449 transitions. Word has length 62 [2023-11-29 01:10:58,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:10:58,622 INFO L495 AbstractCegarLoop]: Abstraction has 1893 states and 2449 transitions. [2023-11-29 01:10:58,623 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 01:10:58,623 INFO L276 IsEmpty]: Start isEmpty. Operand 1893 states and 2449 transitions. [2023-11-29 01:10:58,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 01:10:58,623 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:10:58,624 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 01:10:58,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2023-11-29 01:10:58,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:10:58,824 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 01:10:58,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:10:58,825 INFO L85 PathProgramCache]: Analyzing trace with hash -685629733, now seen corresponding path program 1 times [2023-11-29 01:10:58,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:10:58,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186162076] [2023-11-29 01:10:58,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:58,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:10:58,832 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:10:58,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [283453667] [2023-11-29 01:10:58,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:58,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:10:58,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:10:58,833 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:10:58,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-29 01:10:58,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:58,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 01:10:58,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:10:59,771 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 31 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:10:59,771 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:11:22,568 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 19 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:11:22,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:11:22,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186162076] [2023-11-29 01:11:22,568 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:11:22,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283453667] [2023-11-29 01:11:22,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283453667] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:11:22,569 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:11:22,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 23 [2023-11-29 01:11:22,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663983112] [2023-11-29 01:11:22,569 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:11:22,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 01:11:22,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:11:22,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 01:11:22,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2023-11-29 01:11:22,570 INFO L87 Difference]: Start difference. First operand 1893 states and 2449 transitions. Second operand has 24 states, 23 states have (on average 4.869565217391305) internal successors, (112), 23 states have internal predecessors, (112), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 01:11:30,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:11:55,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:11:55,581 INFO L93 Difference]: Finished difference Result 1927 states and 2483 transitions. [2023-11-29 01:11:55,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-29 01:11:55,581 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.869565217391305) internal successors, (112), 23 states have internal predecessors, (112), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 63 [2023-11-29 01:11:55,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:11:55,584 INFO L225 Difference]: With dead ends: 1927 [2023-11-29 01:11:55,584 INFO L226 Difference]: Without dead ends: 1926 [2023-11-29 01:11:55,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 17.7s TimeCoverageRelationStatistics Valid=373, Invalid=1033, Unknown=0, NotChecked=0, Total=1406 [2023-11-29 01:11:55,585 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 241 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:11:55,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 217 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1059 Invalid, 0 Unknown, 0 Unchecked, 22.0s Time] [2023-11-29 01:11:55,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1926 states. [2023-11-29 01:11:55,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1926 to 1893. [2023-11-29 01:11:55,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1893 states, 1799 states have (on average 1.2768204558087826) internal successors, (2297), 1820 states have internal predecessors, (2297), 70 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2023-11-29 01:11:55,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1893 states to 1893 states and 2437 transitions. [2023-11-29 01:11:55,728 INFO L78 Accepts]: Start accepts. Automaton has 1893 states and 2437 transitions. Word has length 63 [2023-11-29 01:11:55,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:11:55,728 INFO L495 AbstractCegarLoop]: Abstraction has 1893 states and 2437 transitions. [2023-11-29 01:11:55,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.869565217391305) internal successors, (112), 23 states have internal predecessors, (112), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 01:11:55,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1893 states and 2437 transitions. [2023-11-29 01:11:55,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 01:11:55,729 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:11:55,729 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 01:11:55,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2023-11-29 01:11:55,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:11:55,929 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 01:11:55,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:11:55,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1702970748, now seen corresponding path program 1 times [2023-11-29 01:11:55,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:11:55,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255489625] [2023-11-29 01:11:55,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:11:55,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:11:55,935 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:11:55,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [686751404] [2023-11-29 01:11:55,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:11:55,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:11:55,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:11:55,937 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:11:55,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-29 01:11:55,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:55,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:11:55,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:11:56,972 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 01:11:56,973 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:11:57,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:11:57,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255489625] [2023-11-29 01:11:57,143 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:11:57,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686751404] [2023-11-29 01:11:57,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686751404] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:11:57,144 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:11:57,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 01:11:57,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484786128] [2023-11-29 01:11:57,144 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:11:57,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:11:57,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:11:57,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:11:57,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:11:57,145 INFO L87 Difference]: Start difference. First operand 1893 states and 2437 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 01:12:00,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:12:00,514 INFO L93 Difference]: Finished difference Result 2061 states and 2644 transitions. [2023-11-29 01:12:00,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:12:00,515 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 01:12:00,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:12:00,518 INFO L225 Difference]: With dead ends: 2061 [2023-11-29 01:12:00,518 INFO L226 Difference]: Without dead ends: 2060 [2023-11-29 01:12:00,519 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 01:12:00,519 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 186 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-29 01:12:00,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 226 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-29 01:12:00,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2060 states. [2023-11-29 01:12:00,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2060 to 1962. [2023-11-29 01:12:00,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1865 states have (on average 1.271313672922252) internal successors, (2371), 1886 states have internal predecessors, (2371), 73 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2023-11-29 01:12:00,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2517 transitions. [2023-11-29 01:12:00,739 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2517 transitions. Word has length 63 [2023-11-29 01:12:00,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:12:00,740 INFO L495 AbstractCegarLoop]: Abstraction has 1962 states and 2517 transitions. [2023-11-29 01:12:00,740 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 01:12:00,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2517 transitions. [2023-11-29 01:12:00,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 01:12:00,741 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:12:00,741 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 01:12:00,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2023-11-29 01:12:00,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:12:00,941 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 01:12:00,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:12:00,941 INFO L85 PathProgramCache]: Analyzing trace with hash 2137823513, now seen corresponding path program 2 times [2023-11-29 01:12:00,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:12:00,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330933685] [2023-11-29 01:12:00,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:00,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:12:00,946 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:12:00,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [810564015] [2023-11-29 01:12:00,946 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:12:00,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:12:00,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:12:00,947 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:12:00,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-29 01:12:01,007 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:12:01,007 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:12:01,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 01:12:01,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:12:01,617 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 01:12:01,617 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:12:07,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:12:07,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330933685] [2023-11-29 01:12:07,569 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:12:07,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810564015] [2023-11-29 01:12:07,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810564015] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:12:07,569 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:12:07,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 01:12:07,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447512004] [2023-11-29 01:12:07,569 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:12:07,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:12:07,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:12:07,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:12:07,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-11-29 01:12:07,570 INFO L87 Difference]: Start difference. First operand 1962 states and 2517 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 01:12:08,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:12:08,439 INFO L93 Difference]: Finished difference Result 1985 states and 2535 transitions. [2023-11-29 01:12:08,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 01:12:08,440 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 01:12:08,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:12:08,442 INFO L225 Difference]: With dead ends: 1985 [2023-11-29 01:12:08,442 INFO L226 Difference]: Without dead ends: 1982 [2023-11-29 01:12:08,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=168, Invalid=482, Unknown=0, NotChecked=0, Total=650 [2023-11-29 01:12:08,443 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 192 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:12:08,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 204 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 01:12:08,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1982 states. [2023-11-29 01:12:08,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1982 to 1963. [2023-11-29 01:12:08,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1963 states, 1866 states have (on average 1.2695605573419078) internal successors, (2369), 1887 states have internal predecessors, (2369), 73 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2023-11-29 01:12:08,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1963 states to 1963 states and 2515 transitions. [2023-11-29 01:12:08,589 INFO L78 Accepts]: Start accepts. Automaton has 1963 states and 2515 transitions. Word has length 63 [2023-11-29 01:12:08,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:12:08,589 INFO L495 AbstractCegarLoop]: Abstraction has 1963 states and 2515 transitions. [2023-11-29 01:12:08,589 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 01:12:08,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1963 states and 2515 transitions. [2023-11-29 01:12:08,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 01:12:08,590 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:12:08,590 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 01:12:08,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2023-11-29 01:12:08,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:12:08,791 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-29 01:12:08,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:12:08,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1252485701, now seen corresponding path program 1 times [2023-11-29 01:12:08,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:12:08,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181355229] [2023-11-29 01:12:08,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:08,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:12:08,797 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:12:08,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1845096705] [2023-11-29 01:12:08,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:08,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:12:08,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:12:08,798 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:12:08,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316bde50-1e5d-4941-a88f-1ad05f4a6a4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2023-11-29 01:12:08,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:08,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-29 01:12:08,848 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:12:09,820 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 01:12:09,820 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:13:27,182 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 01:13:27,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:27,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181355229] [2023-11-29 01:13:27,182 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:13:27,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845096705] [2023-11-29 01:13:27,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845096705] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:13:27,182 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:13:27,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 27 [2023-11-29 01:13:27,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549383762] [2023-11-29 01:13:27,183 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:13:27,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-29 01:13:27,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:27,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-29 01:13:27,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=615, Unknown=3, NotChecked=0, Total=756 [2023-11-29 01:13:27,184 INFO L87 Difference]: Start difference. First operand 1963 states and 2515 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 01:13:29,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-29 01:13:31,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:13:56,139 WARN L293 SmtUtils]: Spent 21.22s 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 01:14:28,882 WARN L293 SmtUtils]: Spent 25.05s 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 01:14:32,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:14:49,830 WARN L293 SmtUtils]: Spent 5.03s on a formula simplification. DAG size of input: 48 DAG size of output: 41 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 01:14:54,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.93s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:14:55,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:15:32,677 WARN L293 SmtUtils]: Spent 28.17s on a formula simplification. DAG size of input: 114 DAG size of output: 109 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 01:15:36,683 WARN L539 Checker$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 01:15:39,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.64s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:15:44,350 WARN L539 Checker$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 01:15:48,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:15:55,585 WARN L539 Checker$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 01:15:57,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:16:00,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:16:23,120 WARN L293 SmtUtils]: Spent 16.58s 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 01:16:26,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:16:30,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.95s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:16:34,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:16:38,562 WARN L539 Checker$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 01:16:50,575 WARN L293 SmtUtils]: Spent 10.79s 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 01:16:54,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.50s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:17:24,276 WARN L293 SmtUtils]: Spent 21.31s on a formula simplification. DAG size of input: 103 DAG size of output: 98 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 01:17:26,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:17:30,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:17:34,692 WARN L539 Checker$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 01:17:38,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:17:45,797 WARN L293 SmtUtils]: Spent 6.17s on a formula simplification. DAG size of input: 79 DAG size of output: 69 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 01:17:50,502 WARN L539 Checker$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 01:18:09,783 WARN L293 SmtUtils]: Spent 18.77s on a formula simplification that was a NOOP. DAG size: 62 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 01:18:39,251 WARN L293 SmtUtils]: Spent 16.44s 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)