./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ --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 969ea7ac1a6cea553b276c54292ec8e81265daf8dd23428f445a60f39343440e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:27:31,810 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:27:31,914 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-23 22:27:31,926 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:27:31,927 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:27:31,982 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:27:31,985 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:27:31,986 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:27:31,987 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:27:31,990 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:27:31,991 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:27:31,993 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:27:31,994 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:27:32,000 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:27:32,001 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:27:32,002 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:27:32,002 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:27:32,003 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:27:32,003 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:27:32,003 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:27:32,004 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:27:32,007 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:27:32,008 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:27:32,008 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:27:32,009 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 22:27:32,009 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:27:32,010 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:27:32,010 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:27:32,010 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:27:32,011 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:27:32,012 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:27:32,013 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:27:32,014 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:27:32,014 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:27:32,014 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:27:32,015 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:27:32,015 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:27:32,015 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:27:32,015 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:27:32,016 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:27:32,016 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:27:32,016 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:27:32,016 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:27:32,017 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:27:32,017 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_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 969ea7ac1a6cea553b276c54292ec8e81265daf8dd23428f445a60f39343440e [2023-11-23 22:27:32,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:27:32,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:27:32,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:27:32,348 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:27:32,348 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:27:32,350 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound2.c [2023-11-23 22:27:35,614 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:27:35,825 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:27:35,826 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound2.c [2023-11-23 22:27:35,833 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/data/c8529414c/2c148c962bf143fcbb22d48299a85000/FLAGe0f8a618f [2023-11-23 22:27:35,848 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/data/c8529414c/2c148c962bf143fcbb22d48299a85000 [2023-11-23 22:27:35,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:27:35,852 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:27:35,853 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:27:35,854 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:27:35,861 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:27:35,862 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:27:35" (1/1) ... [2023-11-23 22:27:35,863 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@758bad2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:35, skipping insertion in model container [2023-11-23 22:27:35,864 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:27:35" (1/1) ... [2023-11-23 22:27:35,893 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:27:36,079 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:27:36,091 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:27:36,114 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:27:36,128 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:27:36,129 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:36 WrapperNode [2023-11-23 22:27:36,129 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:27:36,130 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:27:36,130 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:27:36,131 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:27:36,138 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:36" (1/1) ... [2023-11-23 22:27:36,146 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:36" (1/1) ... [2023-11-23 22:27:36,176 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 107 [2023-11-23 22:27:36,177 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:27:36,178 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:27:36,178 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:27:36,178 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:27:36,188 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:36" (1/1) ... [2023-11-23 22:27:36,189 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:36" (1/1) ... [2023-11-23 22:27:36,191 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:36" (1/1) ... [2023-11-23 22:27:36,211 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-23 22:27:36,212 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:36" (1/1) ... [2023-11-23 22:27:36,212 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:36" (1/1) ... [2023-11-23 22:27:36,216 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:36" (1/1) ... [2023-11-23 22:27:36,220 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:36" (1/1) ... [2023-11-23 22:27:36,221 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:36" (1/1) ... [2023-11-23 22:27:36,222 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:36" (1/1) ... [2023-11-23 22:27:36,224 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:27:36,225 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:27:36,225 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:27:36,226 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:27:36,227 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:36" (1/1) ... [2023-11-23 22:27:36,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:27:36,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:36,267 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:27:36,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:27:36,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:27:36,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 22:27:36,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:27:36,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:27:36,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 22:27:36,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 22:27:36,378 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:27:36,381 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:27:36,696 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:27:36,739 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:27:36,740 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 22:27:36,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:27:36 BoogieIcfgContainer [2023-11-23 22:27:36,741 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:27:36,747 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:27:36,749 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:27:36,752 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:27:36,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:27:35" (1/3) ... [2023-11-23 22:27:36,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158a71bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:27:36, skipping insertion in model container [2023-11-23 22:27:36,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:36" (2/3) ... [2023-11-23 22:27:36,757 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158a71bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:27:36, skipping insertion in model container [2023-11-23 22:27:36,759 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:27:36" (3/3) ... [2023-11-23 22:27:36,760 INFO L112 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_unwindbound2.c [2023-11-23 22:27:36,783 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:27:36,783 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2023-11-23 22:27:36,874 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:27:36,882 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;@709a35e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:27:36,882 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2023-11-23 22:27:36,887 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 47 states have (on average 1.8936170212765957) internal successors, (89), 81 states have internal predecessors, (89), 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) [2023-11-23 22:27:36,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-23 22:27:36,895 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:36,895 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-23 22:27:36,896 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:27:36,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:36,903 INFO L85 PathProgramCache]: Analyzing trace with hash 170085917, now seen corresponding path program 1 times [2023-11-23 22:27:36,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:36,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110524043] [2023-11-23 22:27:36,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:36,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:37,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:37,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:27:37,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:37,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110524043] [2023-11-23 22:27:37,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110524043] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:37,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:37,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:27:37,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598627172] [2023-11-23 22:27:37,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:37,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 22:27:37,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:37,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 22:27:37,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:27:37,153 INFO L87 Difference]: Start difference. First operand has 90 states, 47 states have (on average 1.8936170212765957) internal successors, (89), 81 states have internal predecessors, (89), 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) 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) [2023-11-23 22:27:37,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:37,229 INFO L93 Difference]: Finished difference Result 178 states and 210 transitions. [2023-11-23 22:27:37,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 22:27:37,237 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 [2023-11-23 22:27:37,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:37,249 INFO L225 Difference]: With dead ends: 178 [2023-11-23 22:27:37,249 INFO L226 Difference]: Without dead ends: 87 [2023-11-23 22:27:37,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:27:37,263 INFO L413 NwaCegarLoop]: 97 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, 97 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 [2023-11-23 22:27:37,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:27:37,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-23 22:27:37,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2023-11-23 22:27:37,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 46 states have (on average 1.8043478260869565) internal successors, (83), 79 states have internal predecessors, (83), 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) [2023-11-23 22:27:37,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2023-11-23 22:27:37,353 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 5 [2023-11-23 22:27:37,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:37,354 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2023-11-23 22:27:37,355 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) [2023-11-23 22:27:37,356 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2023-11-23 22:27:37,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-23 22:27:37,357 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:37,357 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-23 22:27:37,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:27:37,358 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:27:37,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:37,360 INFO L85 PathProgramCache]: Analyzing trace with hash 170145499, now seen corresponding path program 1 times [2023-11-23 22:27:37,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:37,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392137485] [2023-11-23 22:27:37,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:37,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:37,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:37,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:27:37,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:37,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392137485] [2023-11-23 22:27:37,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392137485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:37,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:37,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:27:37,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233886346] [2023-11-23 22:27:37,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:37,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:27:37,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:37,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:27:37,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:27:37,542 INFO L87 Difference]: Start difference. First operand 87 states and 95 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) [2023-11-23 22:27:37,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:37,686 INFO L93 Difference]: Finished difference Result 101 states and 109 transitions. [2023-11-23 22:27:37,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:27:37,690 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 [2023-11-23 22:27:37,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:37,692 INFO L225 Difference]: With dead ends: 101 [2023-11-23 22:27:37,692 INFO L226 Difference]: Without dead ends: 91 [2023-11-23 22:27:37,693 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 [2023-11-23 22:27:37,696 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 4 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 264 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 [2023-11-23 22:27:37,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 264 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:27:37,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-23 22:27:37,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-11-23 22:27:37,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 50 states have (on average 1.74) internal successors, (87), 83 states have internal predecessors, (87), 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) [2023-11-23 22:27:37,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 99 transitions. [2023-11-23 22:27:37,717 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 99 transitions. Word has length 5 [2023-11-23 22:27:37,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:37,719 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 99 transitions. [2023-11-23 22:27:37,720 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) [2023-11-23 22:27:37,720 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 99 transitions. [2023-11-23 22:27:37,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 22:27:37,722 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:37,722 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:37,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:27:37,723 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:27:37,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:37,724 INFO L85 PathProgramCache]: Analyzing trace with hash 743199255, now seen corresponding path program 1 times [2023-11-23 22:27:37,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:37,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133090911] [2023-11-23 22:27:37,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:37,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:37,753 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:37,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [463515266] [2023-11-23 22:27:37,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:37,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:37,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:37,761 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:37,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 22:27:37,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:37,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:27:37,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:37,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:27:37,886 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:27:37,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:37,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133090911] [2023-11-23 22:27:37,887 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:37,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463515266] [2023-11-23 22:27:37,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463515266] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:37,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:37,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:27:37,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345487386] [2023-11-23 22:27:37,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:37,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:27:37,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:37,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:27:37,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:27:37,890 INFO L87 Difference]: Start difference. First operand 91 states and 99 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:37,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:37,982 INFO L93 Difference]: Finished difference Result 114 states and 124 transitions. [2023-11-23 22:27:37,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:27:37,985 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-23 22:27:37,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:37,986 INFO L225 Difference]: With dead ends: 114 [2023-11-23 22:27:37,987 INFO L226 Difference]: Without dead ends: 112 [2023-11-23 22:27:37,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:27:37,989 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 18 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:37,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 164 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:27:37,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-11-23 22:27:38,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 93. [2023-11-23 22:27:38,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 52 states have (on average 1.7115384615384615) internal successors, (89), 85 states have internal predecessors, (89), 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) [2023-11-23 22:27:38,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 101 transitions. [2023-11-23 22:27:38,018 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 101 transitions. Word has length 8 [2023-11-23 22:27:38,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:38,019 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 101 transitions. [2023-11-23 22:27:38,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:38,019 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 101 transitions. [2023-11-23 22:27:38,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-23 22:27:38,020 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:38,020 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:38,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-23 22:27:38,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:38,221 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:27:38,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:38,222 INFO L85 PathProgramCache]: Analyzing trace with hash 148914924, now seen corresponding path program 1 times [2023-11-23 22:27:38,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:38,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886600376] [2023-11-23 22:27:38,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:38,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:38,247 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:38,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [731118855] [2023-11-23 22:27:38,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:38,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:38,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:38,249 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:38,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 22:27:38,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:38,313 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:27:38,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:38,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:27:38,358 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:27:38,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:38,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886600376] [2023-11-23 22:27:38,360 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:38,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731118855] [2023-11-23 22:27:38,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731118855] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:38,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:38,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:27:38,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868331472] [2023-11-23 22:27:38,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:38,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:27:38,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:38,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:27:38,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:27:38,370 INFO L87 Difference]: Start difference. First operand 93 states and 101 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2023-11-23 22:27:38,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:38,489 INFO L93 Difference]: Finished difference Result 163 states and 179 transitions. [2023-11-23 22:27:38,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:27:38,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 15 [2023-11-23 22:27:38,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:38,498 INFO L225 Difference]: With dead ends: 163 [2023-11-23 22:27:38,498 INFO L226 Difference]: Without dead ends: 157 [2023-11-23 22:27:38,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:27:38,502 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 59 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:38,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 139 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:27:38,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2023-11-23 22:27:38,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 127. [2023-11-23 22:27:38,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 80 states have (on average 1.725) internal successors, (138), 113 states have internal predecessors, (138), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-23 22:27:38,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 162 transitions. [2023-11-23 22:27:38,541 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 162 transitions. Word has length 15 [2023-11-23 22:27:38,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:38,541 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 162 transitions. [2023-11-23 22:27:38,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2023-11-23 22:27:38,542 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 162 transitions. [2023-11-23 22:27:38,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-23 22:27:38,543 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:38,543 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:38,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 22:27:38,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:38,752 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:27:38,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:38,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1373323182, now seen corresponding path program 1 times [2023-11-23 22:27:38,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:38,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149564394] [2023-11-23 22:27:38,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:38,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:38,770 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:38,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1972456981] [2023-11-23 22:27:38,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:38,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:38,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:38,773 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:38,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 22:27:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:38,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:27:38,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:39,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:27:39,018 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:27:39,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:39,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149564394] [2023-11-23 22:27:39,019 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:39,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972456981] [2023-11-23 22:27:39,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972456981] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:39,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:39,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:27:39,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210347737] [2023-11-23 22:27:39,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:39,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:27:39,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:39,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:27:39,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:27:39,023 INFO L87 Difference]: Start difference. First operand 127 states and 162 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-23 22:27:39,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:39,162 INFO L93 Difference]: Finished difference Result 153 states and 169 transitions. [2023-11-23 22:27:39,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:27:39,163 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 17 [2023-11-23 22:27:39,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:39,164 INFO L225 Difference]: With dead ends: 153 [2023-11-23 22:27:39,165 INFO L226 Difference]: Without dead ends: 150 [2023-11-23 22:27:39,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:27:39,166 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 187 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:39,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 138 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:27:39,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-11-23 22:27:39,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 128. [2023-11-23 22:27:39,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 81 states have (on average 1.691358024691358) internal successors, (137), 114 states have internal predecessors, (137), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-23 22:27:39,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 161 transitions. [2023-11-23 22:27:39,183 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 161 transitions. Word has length 17 [2023-11-23 22:27:39,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:39,183 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 161 transitions. [2023-11-23 22:27:39,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-23 22:27:39,184 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 161 transitions. [2023-11-23 22:27:39,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-23 22:27:39,184 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:39,184 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:39,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 22:27:39,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:39,403 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:27:39,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:39,403 INFO L85 PathProgramCache]: Analyzing trace with hash -376654252, now seen corresponding path program 1 times [2023-11-23 22:27:39,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:39,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537568947] [2023-11-23 22:27:39,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:39,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:39,415 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:39,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1645914360] [2023-11-23 22:27:39,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:39,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:39,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:39,416 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:39,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 22:27:39,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:39,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:27:39,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:39,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:27:39,527 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:27:39,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:39,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537568947] [2023-11-23 22:27:39,528 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:39,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645914360] [2023-11-23 22:27:39,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645914360] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:39,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:39,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:27:39,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217172646] [2023-11-23 22:27:39,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:39,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:27:39,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:39,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:27:39,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:27:39,531 INFO L87 Difference]: Start difference. First operand 128 states and 161 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2023-11-23 22:27:39,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:39,632 INFO L93 Difference]: Finished difference Result 150 states and 166 transitions. [2023-11-23 22:27:39,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:27:39,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 18 [2023-11-23 22:27:39,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:39,634 INFO L225 Difference]: With dead ends: 150 [2023-11-23 22:27:39,634 INFO L226 Difference]: Without dead ends: 143 [2023-11-23 22:27:39,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:27:39,636 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 180 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:39,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 141 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:27:39,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2023-11-23 22:27:39,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 125. [2023-11-23 22:27:39,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 78 states have (on average 1.6794871794871795) internal successors, (131), 111 states have internal predecessors, (131), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-23 22:27:39,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 155 transitions. [2023-11-23 22:27:39,650 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 155 transitions. Word has length 18 [2023-11-23 22:27:39,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:39,651 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 155 transitions. [2023-11-23 22:27:39,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2023-11-23 22:27:39,651 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 155 transitions. [2023-11-23 22:27:39,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-23 22:27:39,652 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:39,652 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:39,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 22:27:39,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:39,874 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:27:39,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:39,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1488714648, now seen corresponding path program 1 times [2023-11-23 22:27:39,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:39,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831267907] [2023-11-23 22:27:39,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:39,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:39,887 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:39,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1811558502] [2023-11-23 22:27:39,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:39,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:39,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:39,888 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:39,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 22:27:39,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:39,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:27:39,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:40,022 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 22:27:40,022 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:27:40,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:40,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831267907] [2023-11-23 22:27:40,023 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:40,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811558502] [2023-11-23 22:27:40,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811558502] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:40,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:40,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:27:40,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745657414] [2023-11-23 22:27:40,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:40,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:27:40,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:40,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:27:40,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:27:40,025 INFO L87 Difference]: Start difference. First operand 125 states and 155 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 22:27:40,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:40,076 INFO L93 Difference]: Finished difference Result 125 states and 155 transitions. [2023-11-23 22:27:40,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:27:40,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2023-11-23 22:27:40,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:40,079 INFO L225 Difference]: With dead ends: 125 [2023-11-23 22:27:40,079 INFO L226 Difference]: Without dead ends: 123 [2023-11-23 22:27:40,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:27:40,080 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 80 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:40,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 240 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:27:40,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-11-23 22:27:40,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2023-11-23 22:27:40,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 78 states have (on average 1.641025641025641) internal successors, (128), 109 states have internal predecessors, (128), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-23 22:27:40,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 152 transitions. [2023-11-23 22:27:40,096 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 152 transitions. Word has length 26 [2023-11-23 22:27:40,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:40,096 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 152 transitions. [2023-11-23 22:27:40,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 22:27:40,096 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 152 transitions. [2023-11-23 22:27:40,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-23 22:27:40,097 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:40,098 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:40,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 22:27:40,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-23 22:27:40,314 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:27:40,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:40,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1094486249, now seen corresponding path program 1 times [2023-11-23 22:27:40,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:40,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737054469] [2023-11-23 22:27:40,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:40,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:40,327 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:40,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [926435523] [2023-11-23 22:27:40,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:40,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:40,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:40,329 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:40,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 22:27:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:40,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:27:40,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:40,447 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 22:27:40,447 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:27:40,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:40,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737054469] [2023-11-23 22:27:40,447 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:40,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926435523] [2023-11-23 22:27:40,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926435523] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:40,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:40,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:27:40,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403500171] [2023-11-23 22:27:40,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:40,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:27:40,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:40,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:27:40,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:27:40,450 INFO L87 Difference]: Start difference. First operand 123 states and 152 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 22:27:40,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:40,518 INFO L93 Difference]: Finished difference Result 144 states and 174 transitions. [2023-11-23 22:27:40,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 22:27:40,518 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2023-11-23 22:27:40,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:40,520 INFO L225 Difference]: With dead ends: 144 [2023-11-23 22:27:40,521 INFO L226 Difference]: Without dead ends: 143 [2023-11-23 22:27:40,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:27:40,523 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 24 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:40,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 321 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:27:40,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2023-11-23 22:27:40,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 133. [2023-11-23 22:27:40,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 87 states have (on average 1.5747126436781609) internal successors, (137), 118 states have internal predecessors, (137), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-23 22:27:40,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 161 transitions. [2023-11-23 22:27:40,544 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 161 transitions. Word has length 27 [2023-11-23 22:27:40,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:40,545 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 161 transitions. [2023-11-23 22:27:40,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 22:27:40,545 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 161 transitions. [2023-11-23 22:27:40,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-23 22:27:40,546 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:40,547 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-23 22:27:40,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 22:27:40,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-23 22:27:40,762 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:27:40,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:40,762 INFO L85 PathProgramCache]: Analyzing trace with hash -465699495, now seen corresponding path program 1 times [2023-11-23 22:27:40,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:40,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073303062] [2023-11-23 22:27:40,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:40,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:40,773 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:40,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1330924319] [2023-11-23 22:27:40,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:40,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:40,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:40,775 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:40,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 22:27:40,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:40,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:27:40,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:40,883 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 22:27:40,883 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:27:40,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:40,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073303062] [2023-11-23 22:27:40,884 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:40,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330924319] [2023-11-23 22:27:40,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330924319] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:40,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:40,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:27:40,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660653661] [2023-11-23 22:27:40,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:40,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:27:40,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:40,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:27:40,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:27:40,886 INFO L87 Difference]: Start difference. First operand 133 states and 161 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 22:27:40,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:40,957 INFO L93 Difference]: Finished difference Result 227 states and 262 transitions. [2023-11-23 22:27:40,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 22:27:40,958 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2023-11-23 22:27:40,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:40,959 INFO L225 Difference]: With dead ends: 227 [2023-11-23 22:27:40,959 INFO L226 Difference]: Without dead ends: 138 [2023-11-23 22:27:40,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-23 22:27:40,961 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 5 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:40,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 412 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:27:40,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-11-23 22:27:40,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2023-11-23 22:27:40,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 91 states have (on average 1.5494505494505495) internal successors, (141), 122 states have internal predecessors, (141), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-23 22:27:40,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 165 transitions. [2023-11-23 22:27:40,973 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 165 transitions. Word has length 29 [2023-11-23 22:27:40,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:40,974 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 165 transitions. [2023-11-23 22:27:40,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 22:27:40,974 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 165 transitions. [2023-11-23 22:27:40,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-23 22:27:40,975 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:40,975 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-23 22:27:41,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 22:27:41,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-23 22:27:41,193 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:27:41,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:41,193 INFO L85 PathProgramCache]: Analyzing trace with hash -465699477, now seen corresponding path program 1 times [2023-11-23 22:27:41,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:41,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109636045] [2023-11-23 22:27:41,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:41,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:41,203 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:41,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1755223088] [2023-11-23 22:27:41,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:41,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:41,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:41,205 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:41,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 22:27:41,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:41,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:27:41,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:41,324 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 22:27:41,325 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:27:41,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:41,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109636045] [2023-11-23 22:27:41,325 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:41,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755223088] [2023-11-23 22:27:41,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755223088] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:41,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:41,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:27:41,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894337597] [2023-11-23 22:27:41,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:41,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:27:41,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:41,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:27:41,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:27:41,327 INFO L87 Difference]: Start difference. First operand 138 states and 165 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 22:27:41,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:41,712 INFO L93 Difference]: Finished difference Result 227 states and 278 transitions. [2023-11-23 22:27:41,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:27:41,712 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2023-11-23 22:27:41,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:41,714 INFO L225 Difference]: With dead ends: 227 [2023-11-23 22:27:41,715 INFO L226 Difference]: Without dead ends: 222 [2023-11-23 22:27:41,715 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 [2023-11-23 22:27:41,716 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 172 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:41,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 92 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 22:27:41,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2023-11-23 22:27:41,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 186. [2023-11-23 22:27:41,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 131 states have (on average 1.5725190839694656) internal successors, (206), 162 states have internal predecessors, (206), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 22:27:41,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 246 transitions. [2023-11-23 22:27:41,740 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 246 transitions. Word has length 29 [2023-11-23 22:27:41,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:41,740 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 246 transitions. [2023-11-23 22:27:41,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 22:27:41,740 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 246 transitions. [2023-11-23 22:27:41,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-23 22:27:41,741 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:41,741 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-23 22:27:41,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-23 22:27:41,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-23 22:27:41,959 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:27:41,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:41,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1551781809, now seen corresponding path program 1 times [2023-11-23 22:27:41,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:41,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354424793] [2023-11-23 22:27:41,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:41,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:41,979 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:41,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2078795718] [2023-11-23 22:27:41,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:41,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:41,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:41,984 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:42,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-23 22:27:42,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:42,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:27:42,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:42,127 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 22:27:42,128 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:27:42,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:42,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354424793] [2023-11-23 22:27:42,128 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:42,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078795718] [2023-11-23 22:27:42,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078795718] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:42,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:42,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:27:42,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440928827] [2023-11-23 22:27:42,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:42,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:27:42,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:42,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:27:42,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:27:42,132 INFO L87 Difference]: Start difference. First operand 186 states and 246 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 22:27:42,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:42,309 INFO L93 Difference]: Finished difference Result 222 states and 269 transitions. [2023-11-23 22:27:42,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:27:42,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2023-11-23 22:27:42,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:42,313 INFO L225 Difference]: With dead ends: 222 [2023-11-23 22:27:42,313 INFO L226 Difference]: Without dead ends: 219 [2023-11-23 22:27:42,313 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 [2023-11-23 22:27:42,314 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 164 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:42,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 92 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:27:42,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-11-23 22:27:42,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 187. [2023-11-23 22:27:42,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 132 states have (on average 1.5378787878787878) internal successors, (203), 163 states have internal predecessors, (203), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 22:27:42,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 243 transitions. [2023-11-23 22:27:42,343 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 243 transitions. Word has length 30 [2023-11-23 22:27:42,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:42,343 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 243 transitions. [2023-11-23 22:27:42,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 22:27:42,344 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 243 transitions. [2023-11-23 22:27:42,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-23 22:27:42,351 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:42,352 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-11-23 22:27:42,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-23 22:27:42,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-23 22:27:42,572 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:27:42,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:42,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1006062636, now seen corresponding path program 1 times [2023-11-23 22:27:42,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:42,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902844585] [2023-11-23 22:27:42,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:42,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:42,586 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:42,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [4922315] [2023-11-23 22:27:42,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:42,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:42,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:42,588 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:42,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-23 22:27:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:42,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:27:42,664 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:42,729 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 22:27:42,729 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:27:42,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:42,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902844585] [2023-11-23 22:27:42,730 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:42,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4922315] [2023-11-23 22:27:42,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4922315] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:42,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:42,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:27:42,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102569056] [2023-11-23 22:27:42,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:42,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:27:42,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:42,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:27:42,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:27:42,735 INFO L87 Difference]: Start difference. First operand 187 states and 243 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:27:43,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:43,152 INFO L93 Difference]: Finished difference Result 223 states and 272 transitions. [2023-11-23 22:27:43,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:27:43,153 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 50 [2023-11-23 22:27:43,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:43,155 INFO L225 Difference]: With dead ends: 223 [2023-11-23 22:27:43,155 INFO L226 Difference]: Without dead ends: 221 [2023-11-23 22:27:43,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:27:43,156 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 170 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:43,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 85 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 22:27:43,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2023-11-23 22:27:43,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 189. [2023-11-23 22:27:43,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 134 states have (on average 1.5149253731343284) internal successors, (203), 165 states have internal predecessors, (203), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 22:27:43,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 243 transitions. [2023-11-23 22:27:43,183 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 243 transitions. Word has length 50 [2023-11-23 22:27:43,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:43,184 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 243 transitions. [2023-11-23 22:27:43,184 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:27:43,184 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 243 transitions. [2023-11-23 22:27:43,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-23 22:27:43,185 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:43,185 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-11-23 22:27:43,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-23 22:27:43,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:43,406 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:27:43,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:43,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1123170539, now seen corresponding path program 1 times [2023-11-23 22:27:43,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:43,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550161202] [2023-11-23 22:27:43,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:43,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:43,419 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:43,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1460480349] [2023-11-23 22:27:43,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:43,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:43,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:43,421 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:43,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-23 22:27:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:43,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:27:43,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:43,552 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 22:27:43,552 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:27:43,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:43,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550161202] [2023-11-23 22:27:43,553 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:43,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460480349] [2023-11-23 22:27:43,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460480349] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:43,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:43,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:27:43,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966705925] [2023-11-23 22:27:43,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:43,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:27:43,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:43,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:27:43,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:27:43,555 INFO L87 Difference]: Start difference. First operand 189 states and 243 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:27:43,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:43,751 INFO L93 Difference]: Finished difference Result 223 states and 268 transitions. [2023-11-23 22:27:43,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:27:43,751 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 51 [2023-11-23 22:27:43,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:43,754 INFO L225 Difference]: With dead ends: 223 [2023-11-23 22:27:43,754 INFO L226 Difference]: Without dead ends: 221 [2023-11-23 22:27:43,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:27:43,755 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 165 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:43,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 87 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:27:43,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2023-11-23 22:27:43,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 191. [2023-11-23 22:27:43,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 136 states have (on average 1.4926470588235294) internal successors, (203), 167 states have internal predecessors, (203), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 22:27:43,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 243 transitions. [2023-11-23 22:27:43,776 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 243 transitions. Word has length 51 [2023-11-23 22:27:43,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:43,776 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 243 transitions. [2023-11-23 22:27:43,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:27:43,777 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 243 transitions. [2023-11-23 22:27:43,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-23 22:27:43,777 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:43,778 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1] [2023-11-23 22:27:43,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-23 22:27:43,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-23 22:27:43,995 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:27:43,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:43,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1330093161, now seen corresponding path program 1 times [2023-11-23 22:27:43,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:43,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684383057] [2023-11-23 22:27:43,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:43,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:44,006 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:44,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [869256011] [2023-11-23 22:27:44,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:44,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:44,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:44,008 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:44,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-23 22:27:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:44,067 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 22:27:44,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:44,158 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 22:27:44,158 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:27:44,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:44,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684383057] [2023-11-23 22:27:44,159 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:44,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869256011] [2023-11-23 22:27:44,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869256011] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:44,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:44,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:27:44,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839210215] [2023-11-23 22:27:44,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:44,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:27:44,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:44,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:27:44,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:27:44,164 INFO L87 Difference]: Start difference. First operand 191 states and 243 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-23 22:27:44,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:44,309 INFO L93 Difference]: Finished difference Result 191 states and 243 transitions. [2023-11-23 22:27:44,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:27:44,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 53 [2023-11-23 22:27:44,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:44,313 INFO L225 Difference]: With dead ends: 191 [2023-11-23 22:27:44,313 INFO L226 Difference]: Without dead ends: 190 [2023-11-23 22:27:44,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:27:44,314 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 51 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:44,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 102 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:27:44,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2023-11-23 22:27:44,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2023-11-23 22:27:44,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 136 states have (on average 1.463235294117647) internal successors, (199), 166 states have internal predecessors, (199), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 22:27:44,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 239 transitions. [2023-11-23 22:27:44,335 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 239 transitions. Word has length 53 [2023-11-23 22:27:44,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:44,335 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 239 transitions. [2023-11-23 22:27:44,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-23 22:27:44,336 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 239 transitions. [2023-11-23 22:27:44,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-23 22:27:44,338 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:44,338 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1] [2023-11-23 22:27:44,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-23 22:27:44,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-23 22:27:44,560 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:27:44,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:44,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1330093203, now seen corresponding path program 1 times [2023-11-23 22:27:44,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:44,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417261013] [2023-11-23 22:27:44,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:44,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:44,571 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:44,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1006658649] [2023-11-23 22:27:44,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:44,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:44,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:44,579 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:44,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-23 22:27:44,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:44,632 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:27:44,634 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:44,668 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 22:27:44,668 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:27:44,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:44,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417261013] [2023-11-23 22:27:44,669 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:44,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006658649] [2023-11-23 22:27:44,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006658649] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:44,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:44,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:27:44,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571801365] [2023-11-23 22:27:44,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:44,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:27:44,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:44,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:27:44,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:27:44,672 INFO L87 Difference]: Start difference. First operand 190 states and 239 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:27:44,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:44,739 INFO L93 Difference]: Finished difference Result 196 states and 239 transitions. [2023-11-23 22:27:44,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:27:44,740 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 53 [2023-11-23 22:27:44,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:44,742 INFO L225 Difference]: With dead ends: 196 [2023-11-23 22:27:44,742 INFO L226 Difference]: Without dead ends: 195 [2023-11-23 22:27:44,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:27:44,744 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 16 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:44,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 142 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:27:44,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-11-23 22:27:44,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 190. [2023-11-23 22:27:44,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 136 states have (on average 1.4558823529411764) internal successors, (198), 166 states have internal predecessors, (198), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 22:27:44,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 238 transitions. [2023-11-23 22:27:44,764 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 238 transitions. Word has length 53 [2023-11-23 22:27:44,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:44,765 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 238 transitions. [2023-11-23 22:27:44,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:27:44,765 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 238 transitions. [2023-11-23 22:27:44,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-23 22:27:44,766 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:44,766 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1] [2023-11-23 22:27:44,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-23 22:27:44,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-23 22:27:44,988 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:27:44,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:44,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1716785083, now seen corresponding path program 1 times [2023-11-23 22:27:44,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:44,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215546538] [2023-11-23 22:27:44,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:44,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:45,008 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:45,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [50271937] [2023-11-23 22:27:45,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:45,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:45,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:45,010 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:45,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-23 22:27:45,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:45,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:27:45,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:45,208 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 22:27:45,209 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:27:45,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:45,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215546538] [2023-11-23 22:27:45,209 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:45,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50271937] [2023-11-23 22:27:45,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50271937] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:45,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:45,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:27:45,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005076500] [2023-11-23 22:27:45,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:45,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:27:45,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:45,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:27:45,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:27:45,212 INFO L87 Difference]: Start difference. First operand 190 states and 238 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:27:45,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:45,544 INFO L93 Difference]: Finished difference Result 272 states and 316 transitions. [2023-11-23 22:27:45,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 22:27:45,545 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 54 [2023-11-23 22:27:45,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:45,547 INFO L225 Difference]: With dead ends: 272 [2023-11-23 22:27:45,548 INFO L226 Difference]: Without dead ends: 271 [2023-11-23 22:27:45,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-11-23 22:27:45,549 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 323 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:45,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 239 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:27:45,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2023-11-23 22:27:45,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 225. [2023-11-23 22:27:45,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 166 states have (on average 1.4518072289156627) internal successors, (241), 196 states have internal predecessors, (241), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-23 22:27:45,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 291 transitions. [2023-11-23 22:27:45,587 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 291 transitions. Word has length 54 [2023-11-23 22:27:45,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:45,587 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 291 transitions. [2023-11-23 22:27:45,588 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:27:45,588 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 291 transitions. [2023-11-23 22:27:45,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-23 22:27:45,588 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:45,589 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1] [2023-11-23 22:27:45,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-23 22:27:45,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-23 22:27:45,814 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:27:45,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:45,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1716783801, now seen corresponding path program 1 times [2023-11-23 22:27:45,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:45,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619688569] [2023-11-23 22:27:45,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:45,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:45,829 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:45,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [446216520] [2023-11-23 22:27:45,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:45,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:45,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:45,832 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:45,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-23 22:27:45,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:45,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:27:45,891 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:45,961 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 22:27:45,962 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:27:45,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:45,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619688569] [2023-11-23 22:27:45,962 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:45,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446216520] [2023-11-23 22:27:45,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [446216520] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:45,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:45,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:27:45,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767049915] [2023-11-23 22:27:45,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:45,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:27:45,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:45,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:27:45,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:27:45,965 INFO L87 Difference]: Start difference. First operand 225 states and 291 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:27:46,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:46,250 INFO L93 Difference]: Finished difference Result 257 states and 318 transitions. [2023-11-23 22:27:46,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:27:46,251 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 54 [2023-11-23 22:27:46,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:46,253 INFO L225 Difference]: With dead ends: 257 [2023-11-23 22:27:46,253 INFO L226 Difference]: Without dead ends: 256 [2023-11-23 22:27:46,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:27:46,254 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 157 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:46,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 106 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:27:46,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2023-11-23 22:27:46,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 229. [2023-11-23 22:27:46,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 170 states have (on average 1.4411764705882353) internal successors, (245), 200 states have internal predecessors, (245), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-23 22:27:46,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 295 transitions. [2023-11-23 22:27:46,276 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 295 transitions. Word has length 54 [2023-11-23 22:27:46,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:46,276 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 295 transitions. [2023-11-23 22:27:46,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:27:46,277 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 295 transitions. [2023-11-23 22:27:46,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-23 22:27:46,277 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:46,277 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1] [2023-11-23 22:27:46,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-23 22:27:46,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-23 22:27:46,498 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:27:46,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:46,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1680690415, now seen corresponding path program 1 times [2023-11-23 22:27:46,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:46,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977419401] [2023-11-23 22:27:46,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:46,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:46,508 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:46,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [949049404] [2023-11-23 22:27:46,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:46,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:46,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:46,510 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:46,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-23 22:27:46,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:46,583 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:27:46,585 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:46,682 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 22:27:46,683 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:27:46,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:46,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977419401] [2023-11-23 22:27:46,683 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:46,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949049404] [2023-11-23 22:27:46,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [949049404] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:46,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:46,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:27:46,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305814155] [2023-11-23 22:27:46,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:46,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:27:46,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:46,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:27:46,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:27:46,687 INFO L87 Difference]: Start difference. First operand 229 states and 295 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:27:46,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:46,941 INFO L93 Difference]: Finished difference Result 229 states and 295 transitions. [2023-11-23 22:27:46,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:27:46,941 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2023-11-23 22:27:46,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:46,943 INFO L225 Difference]: With dead ends: 229 [2023-11-23 22:27:46,943 INFO L226 Difference]: Without dead ends: 227 [2023-11-23 22:27:46,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:27:46,945 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 99 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:46,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 75 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:27:46,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2023-11-23 22:27:46,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2023-11-23 22:27:46,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 170 states have (on average 1.411764705882353) internal successors, (240), 198 states have internal predecessors, (240), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-23 22:27:46,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 290 transitions. [2023-11-23 22:27:46,967 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 290 transitions. Word has length 55 [2023-11-23 22:27:46,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:46,968 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 290 transitions. [2023-11-23 22:27:46,968 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:27:46,968 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 290 transitions. [2023-11-23 22:27:46,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-23 22:27:46,969 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:46,969 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1, 1] [2023-11-23 22:27:46,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-23 22:27:47,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-23 22:27:47,194 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:27:47,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:47,195 INFO L85 PathProgramCache]: Analyzing trace with hash 561795451, now seen corresponding path program 1 times [2023-11-23 22:27:47,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:47,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471985064] [2023-11-23 22:27:47,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:47,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:47,204 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:47,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [178548673] [2023-11-23 22:27:47,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:47,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:47,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:47,205 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:47,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-23 22:27:47,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:47,260 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:27:47,262 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:47,358 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 22:27:47,358 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:27:47,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:47,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471985064] [2023-11-23 22:27:47,359 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:47,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178548673] [2023-11-23 22:27:47,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178548673] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:47,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:47,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:27:47,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005816498] [2023-11-23 22:27:47,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:47,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:27:47,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:47,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:27:47,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:27:47,363 INFO L87 Difference]: Start difference. First operand 227 states and 290 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:27:47,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:47,472 INFO L93 Difference]: Finished difference Result 249 states and 302 transitions. [2023-11-23 22:27:47,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:27:47,472 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 56 [2023-11-23 22:27:47,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:47,475 INFO L225 Difference]: With dead ends: 249 [2023-11-23 22:27:47,475 INFO L226 Difference]: Without dead ends: 248 [2023-11-23 22:27:47,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:27:47,477 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 62 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:47,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 154 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:27:47,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2023-11-23 22:27:47,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 231. [2023-11-23 22:27:47,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 174 states have (on average 1.4022988505747127) internal successors, (244), 202 states have internal predecessors, (244), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-23 22:27:47,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 294 transitions. [2023-11-23 22:27:47,507 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 294 transitions. Word has length 56 [2023-11-23 22:27:47,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:47,507 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 294 transitions. [2023-11-23 22:27:47,508 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:27:47,508 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 294 transitions. [2023-11-23 22:27:47,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-23 22:27:47,509 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:47,509 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:47,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-23 22:27:47,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:47,722 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:27:47,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:47,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1039228013, now seen corresponding path program 1 times [2023-11-23 22:27:47,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:47,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772193807] [2023-11-23 22:27:47,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:47,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:47,731 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:47,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [941026703] [2023-11-23 22:27:47,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:47,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:47,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:47,733 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:47,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-23 22:27:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:47,793 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 22:27:47,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:47,890 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-23 22:27:47,890 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:27:48,025 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 22:27:48,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:48,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772193807] [2023-11-23 22:27:48,025 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:48,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [941026703] [2023-11-23 22:27:48,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [941026703] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-23 22:27:48,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:27:48,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2023-11-23 22:27:48,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651301887] [2023-11-23 22:27:48,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:48,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 22:27:48,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:48,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 22:27:48,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-23 22:27:48,028 INFO L87 Difference]: Start difference. First operand 231 states and 294 transitions. Second operand has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:27:48,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:48,174 INFO L93 Difference]: Finished difference Result 257 states and 312 transitions. [2023-11-23 22:27:48,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 22:27:48,174 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2023-11-23 22:27:48,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:48,177 INFO L225 Difference]: With dead ends: 257 [2023-11-23 22:27:48,177 INFO L226 Difference]: Without dead ends: 256 [2023-11-23 22:27:48,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2023-11-23 22:27:48,178 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 107 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:48,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 376 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:27:48,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2023-11-23 22:27:48,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 235. [2023-11-23 22:27:48,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 177 states have (on average 1.384180790960452) internal successors, (245), 205 states have internal predecessors, (245), 25 states have call successors, (25), 4 states have call predecessors, (25), 4 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-23 22:27:48,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 295 transitions. [2023-11-23 22:27:48,201 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 295 transitions. Word has length 59 [2023-11-23 22:27:48,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:48,202 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 295 transitions. [2023-11-23 22:27:48,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:27:48,202 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 295 transitions. [2023-11-23 22:27:48,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-23 22:27:48,203 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:48,203 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:48,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-23 22:27:48,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:48,425 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:27:48,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:48,426 INFO L85 PathProgramCache]: Analyzing trace with hash 2029261199, now seen corresponding path program 1 times [2023-11-23 22:27:48,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:48,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632824692] [2023-11-23 22:27:48,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:48,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:48,435 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:48,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1989584798] [2023-11-23 22:27:48,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:48,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:48,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:48,437 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:48,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-23 22:27:48,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:48,501 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 22:27:48,503 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:48,811 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 22:27:48,811 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:27:48,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:48,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632824692] [2023-11-23 22:27:48,812 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:48,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989584798] [2023-11-23 22:27:48,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989584798] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:48,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:48,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 22:27:48,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577826680] [2023-11-23 22:27:48,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:48,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 22:27:48,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:48,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 22:27:48,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:27:48,815 INFO L87 Difference]: Start difference. First operand 235 states and 295 transitions. Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:27:49,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:49,305 INFO L93 Difference]: Finished difference Result 367 states and 435 transitions. [2023-11-23 22:27:49,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 22:27:49,306 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 61 [2023-11-23 22:27:49,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:49,308 INFO L225 Difference]: With dead ends: 367 [2023-11-23 22:27:49,309 INFO L226 Difference]: Without dead ends: 360 [2023-11-23 22:27:49,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-11-23 22:27:49,310 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 339 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:49,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 202 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 22:27:49,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2023-11-23 22:27:49,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 315. [2023-11-23 22:27:49,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 247 states have (on average 1.3846153846153846) internal successors, (342), 275 states have internal predecessors, (342), 35 states have call successors, (35), 4 states have call predecessors, (35), 4 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-23 22:27:49,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 412 transitions. [2023-11-23 22:27:49,340 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 412 transitions. Word has length 61 [2023-11-23 22:27:49,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:49,341 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 412 transitions. [2023-11-23 22:27:49,341 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:27:49,341 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 412 transitions. [2023-11-23 22:27:49,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-23 22:27:49,342 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:49,342 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:49,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-23 22:27:49,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:49,561 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:27:49,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:49,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1517412126, now seen corresponding path program 1 times [2023-11-23 22:27:49,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:49,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992785973] [2023-11-23 22:27:49,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:49,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:49,574 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:49,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [143397094] [2023-11-23 22:27:49,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:49,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:49,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:49,580 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:49,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-23 22:27:49,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:49,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 22:27:49,644 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:49,975 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 22:27:49,976 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:27:50,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:50,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992785973] [2023-11-23 22:27:50,171 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:50,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143397094] [2023-11-23 22:27:50,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143397094] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:27:50,171 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:27:50,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-23 22:27:50,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33980247] [2023-11-23 22:27:50,172 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 22:27:50,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 22:27:50,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:50,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 22:27:50,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-23 22:27:50,174 INFO L87 Difference]: Start difference. First operand 315 states and 412 transitions. Second operand has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:27:50,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:50,617 INFO L93 Difference]: Finished difference Result 430 states and 536 transitions. [2023-11-23 22:27:50,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 22:27:50,618 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2023-11-23 22:27:50,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:50,621 INFO L225 Difference]: With dead ends: 430 [2023-11-23 22:27:50,622 INFO L226 Difference]: Without dead ends: 427 [2023-11-23 22:27:50,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-23 22:27:50,624 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 277 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:50,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 216 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 22:27:50,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2023-11-23 22:27:50,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 380. [2023-11-23 22:27:50,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 302 states have (on average 1.380794701986755) internal successors, (417), 330 states have internal predecessors, (417), 45 states have call successors, (45), 4 states have call predecessors, (45), 4 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-11-23 22:27:50,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 507 transitions. [2023-11-23 22:27:50,662 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 507 transitions. Word has length 62 [2023-11-23 22:27:50,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:50,662 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 507 transitions. [2023-11-23 22:27:50,662 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:27:50,662 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 507 transitions. [2023-11-23 22:27:50,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-23 22:27:50,663 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:50,663 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:50,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-23 22:27:50,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:50,878 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:27:50,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:50,878 INFO L85 PathProgramCache]: Analyzing trace with hash 204864497, now seen corresponding path program 1 times [2023-11-23 22:27:50,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:50,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012073430] [2023-11-23 22:27:50,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:50,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:50,892 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:50,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1901350405] [2023-11-23 22:27:50,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:50,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:50,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:50,894 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:50,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-23 22:27:50,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:50,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:27:50,952 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:51,066 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 22:27:51,066 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:27:51,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:51,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012073430] [2023-11-23 22:27:51,067 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:51,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901350405] [2023-11-23 22:27:51,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1901350405] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:51,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:51,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:27:51,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818793220] [2023-11-23 22:27:51,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:51,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:27:51,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:51,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:27:51,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:27:51,072 INFO L87 Difference]: Start difference. First operand 380 states and 507 transitions. Second operand has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:27:51,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:51,499 INFO L93 Difference]: Finished difference Result 553 states and 725 transitions. [2023-11-23 22:27:51,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 22:27:51,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 63 [2023-11-23 22:27:51,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:51,504 INFO L225 Difference]: With dead ends: 553 [2023-11-23 22:27:51,505 INFO L226 Difference]: Without dead ends: 548 [2023-11-23 22:27:51,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:27:51,506 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 104 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:51,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 247 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 22:27:51,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2023-11-23 22:27:51,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 498. [2023-11-23 22:27:51,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 400 states have (on average 1.3875) internal successors, (555), 428 states have internal predecessors, (555), 65 states have call successors, (65), 4 states have call predecessors, (65), 4 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-11-23 22:27:51,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 685 transitions. [2023-11-23 22:27:51,576 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 685 transitions. Word has length 63 [2023-11-23 22:27:51,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:51,576 INFO L495 AbstractCegarLoop]: Abstraction has 498 states and 685 transitions. [2023-11-23 22:27:51,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:27:51,577 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 685 transitions. [2023-11-23 22:27:51,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-23 22:27:51,578 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:51,578 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:51,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-23 22:27:51,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:51,786 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:27:51,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:51,786 INFO L85 PathProgramCache]: Analyzing trace with hash 2055832260, now seen corresponding path program 1 times [2023-11-23 22:27:51,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:51,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920402223] [2023-11-23 22:27:51,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:51,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:51,793 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:51,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1771540821] [2023-11-23 22:27:51,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:51,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:51,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:51,795 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:51,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-23 22:27:51,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:51,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 22:27:51,866 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:52,143 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 22:27:52,143 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:27:52,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:52,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920402223] [2023-11-23 22:27:52,283 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:52,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771540821] [2023-11-23 22:27:52,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771540821] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:27:52,283 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:27:52,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-23 22:27:52,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068620459] [2023-11-23 22:27:52,284 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 22:27:52,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 22:27:52,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:52,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 22:27:52,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-23 22:27:52,286 INFO L87 Difference]: Start difference. First operand 498 states and 685 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, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:27:52,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:52,662 INFO L93 Difference]: Finished difference Result 534 states and 700 transitions. [2023-11-23 22:27:52,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 22:27:52,663 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, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 64 [2023-11-23 22:27:52,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:52,667 INFO L225 Difference]: With dead ends: 534 [2023-11-23 22:27:52,667 INFO L226 Difference]: Without dead ends: 527 [2023-11-23 22:27:52,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2023-11-23 22:27:52,668 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 290 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:52,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 244 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 22:27:52,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2023-11-23 22:27:52,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 496. [2023-11-23 22:27:52,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 398 states have (on average 1.3768844221105527) internal successors, (548), 426 states have internal predecessors, (548), 65 states have call successors, (65), 4 states have call predecessors, (65), 4 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-11-23 22:27:52,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 678 transitions. [2023-11-23 22:27:52,726 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 678 transitions. Word has length 64 [2023-11-23 22:27:52,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:52,726 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 678 transitions. [2023-11-23 22:27:52,727 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, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:27:52,727 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 678 transitions. [2023-11-23 22:27:52,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-23 22:27:52,727 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:52,728 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:52,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-23 22:27:52,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-23 22:27:52,942 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:27:52,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:52,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1160481470, now seen corresponding path program 1 times [2023-11-23 22:27:52,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:52,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974342880] [2023-11-23 22:27:52,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:52,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:52,951 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:52,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1690030729] [2023-11-23 22:27:52,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:52,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:52,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:52,956 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:52,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-23 22:27:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:53,005 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 22:27:53,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:53,102 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-23 22:27:53,102 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:27:53,231 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 22:27:53,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:53,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974342880] [2023-11-23 22:27:53,231 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:53,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690030729] [2023-11-23 22:27:53,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690030729] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:27:53,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:27:53,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-23 22:27:53,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685339230] [2023-11-23 22:27:53,232 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:27:53,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 22:27:53,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:53,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 22:27:53,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-23 22:27:53,233 INFO L87 Difference]: Start difference. First operand 496 states and 678 transitions. Second operand has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 12 states have internal predecessors, (80), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-23 22:27:53,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:53,543 INFO L93 Difference]: Finished difference Result 903 states and 1266 transitions. [2023-11-23 22:27:53,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-23 22:27:53,543 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 12 states have internal predecessors, (80), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 68 [2023-11-23 22:27:53,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:53,552 INFO L225 Difference]: With dead ends: 903 [2023-11-23 22:27:53,552 INFO L226 Difference]: Without dead ends: 902 [2023-11-23 22:27:53,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=144, Invalid=362, Unknown=0, NotChecked=0, Total=506 [2023-11-23 22:27:53,555 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 314 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:53,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 420 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:27:53,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2023-11-23 22:27:53,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 822. [2023-11-23 22:27:53,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 674 states have (on average 1.4332344213649852) internal successors, (966), 702 states have internal predecessors, (966), 113 states have call successors, (113), 6 states have call predecessors, (113), 6 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2023-11-23 22:27:53,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 1192 transitions. [2023-11-23 22:27:53,667 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 1192 transitions. Word has length 68 [2023-11-23 22:27:53,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:53,667 INFO L495 AbstractCegarLoop]: Abstraction has 822 states and 1192 transitions. [2023-11-23 22:27:53,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 12 states have internal predecessors, (80), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-23 22:27:53,668 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 1192 transitions. [2023-11-23 22:27:53,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-23 22:27:53,669 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:53,669 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:53,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-23 22:27:53,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:53,886 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:27:53,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:53,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1468807026, now seen corresponding path program 1 times [2023-11-23 22:27:53,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:53,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940639413] [2023-11-23 22:27:53,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:53,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:53,894 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:53,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [101178933] [2023-11-23 22:27:53,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:53,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:53,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:53,896 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:53,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-23 22:27:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:53,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:27:53,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:54,057 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 22:27:54,057 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:27:54,193 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 22:27:54,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:54,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940639413] [2023-11-23 22:27:54,194 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:54,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101178933] [2023-11-23 22:27:54,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [101178933] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:27:54,194 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:27:54,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-23 22:27:54,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659040384] [2023-11-23 22:27:54,195 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:27:54,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 22:27:54,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:54,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 22:27:54,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:27:54,196 INFO L87 Difference]: Start difference. First operand 822 states and 1192 transitions. Second operand has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-23 22:27:54,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:54,559 INFO L93 Difference]: Finished difference Result 943 states and 1335 transitions. [2023-11-23 22:27:54,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 22:27:54,560 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 70 [2023-11-23 22:27:54,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:54,567 INFO L225 Difference]: With dead ends: 943 [2023-11-23 22:27:54,567 INFO L226 Difference]: Without dead ends: 942 [2023-11-23 22:27:54,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=77, Unknown=0, NotChecked=0, Total=132 [2023-11-23 22:27:54,569 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 167 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:54,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 489 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:27:54,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2023-11-23 22:27:54,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 821. [2023-11-23 22:27:54,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 674 states have (on average 1.4302670623145401) internal successors, (964), 701 states have internal predecessors, (964), 113 states have call successors, (113), 6 states have call predecessors, (113), 6 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2023-11-23 22:27:54,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1190 transitions. [2023-11-23 22:27:54,695 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1190 transitions. Word has length 70 [2023-11-23 22:27:54,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:54,696 INFO L495 AbstractCegarLoop]: Abstraction has 821 states and 1190 transitions. [2023-11-23 22:27:54,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-23 22:27:54,696 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1190 transitions. [2023-11-23 22:27:54,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-23 22:27:54,697 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:54,697 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:54,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-23 22:27:54,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:54,910 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:27:54,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:54,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1468807044, now seen corresponding path program 1 times [2023-11-23 22:27:54,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:54,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032250943] [2023-11-23 22:27:54,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:54,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:54,918 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:54,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1516470388] [2023-11-23 22:27:54,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:54,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:54,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:54,920 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:54,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-23 22:27:54,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:54,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 22:27:54,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:55,096 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 36 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-23 22:27:55,097 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:27:55,196 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 22:27:55,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:55,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032250943] [2023-11-23 22:27:55,197 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:55,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516470388] [2023-11-23 22:27:55,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516470388] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:27:55,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:27:55,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 8 [2023-11-23 22:27:55,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579157702] [2023-11-23 22:27:55,198 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:27:55,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 22:27:55,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:55,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 22:27:55,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:27:55,200 INFO L87 Difference]: Start difference. First operand 821 states and 1190 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 22:27:55,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:55,320 INFO L93 Difference]: Finished difference Result 1043 states and 1477 transitions. [2023-11-23 22:27:55,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 22:27:55,321 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 70 [2023-11-23 22:27:55,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:55,324 INFO L225 Difference]: With dead ends: 1043 [2023-11-23 22:27:55,324 INFO L226 Difference]: Without dead ends: 355 [2023-11-23 22:27:55,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 127 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2023-11-23 22:27:55,328 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 58 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:55,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 236 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:27:55,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2023-11-23 22:27:55,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 276. [2023-11-23 22:27:55,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 225 states have (on average 1.28) internal successors, (288), 242 states have internal predecessors, (288), 30 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-23 22:27:55,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 348 transitions. [2023-11-23 22:27:55,370 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 348 transitions. Word has length 70 [2023-11-23 22:27:55,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:55,370 INFO L495 AbstractCegarLoop]: Abstraction has 276 states and 348 transitions. [2023-11-23 22:27:55,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 22:27:55,371 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 348 transitions. [2023-11-23 22:27:55,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-23 22:27:55,372 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:55,372 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:55,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-23 22:27:55,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-23 22:27:55,595 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:27:55,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:55,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1711622316, now seen corresponding path program 1 times [2023-11-23 22:27:55,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:55,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756613593] [2023-11-23 22:27:55,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:55,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:55,605 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:55,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1656447888] [2023-11-23 22:27:55,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:55,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:55,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:55,611 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:55,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-23 22:27:55,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:55,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 22:27:55,677 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:55,864 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 22:27:55,865 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:27:56,105 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 22:27:56,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:56,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756613593] [2023-11-23 22:27:56,106 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:56,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656447888] [2023-11-23 22:27:56,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656447888] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:27:56,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:27:56,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-23 22:27:56,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623594889] [2023-11-23 22:27:56,107 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:27:56,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 22:27:56,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:56,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 22:27:56,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-23 22:27:56,110 INFO L87 Difference]: Start difference. First operand 276 states and 348 transitions. Second operand has 12 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 12 states have internal predecessors, (85), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-23 22:27:57,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:57,052 INFO L93 Difference]: Finished difference Result 445 states and 551 transitions. [2023-11-23 22:27:57,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 22:27:57,053 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 12 states have internal predecessors, (85), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 71 [2023-11-23 22:27:57,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:57,056 INFO L225 Difference]: With dead ends: 445 [2023-11-23 22:27:57,056 INFO L226 Difference]: Without dead ends: 444 [2023-11-23 22:27:57,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=183, Invalid=369, Unknown=0, NotChecked=0, Total=552 [2023-11-23 22:27:57,058 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 539 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:57,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 349 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 22:27:57,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2023-11-23 22:27:57,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 357. [2023-11-23 22:27:57,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 296 states have (on average 1.2736486486486487) internal successors, (377), 313 states have internal predecessors, (377), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-23 22:27:57,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 457 transitions. [2023-11-23 22:27:57,110 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 457 transitions. Word has length 71 [2023-11-23 22:27:57,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:57,111 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 457 transitions. [2023-11-23 22:27:57,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 12 states have internal predecessors, (85), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-23 22:27:57,111 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 457 transitions. [2023-11-23 22:27:57,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-23 22:27:57,113 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:57,114 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:57,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-11-23 22:27:57,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-23 22:27:57,335 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:27:57,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:57,335 INFO L85 PathProgramCache]: Analyzing trace with hash 103433046, now seen corresponding path program 1 times [2023-11-23 22:27:57,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:57,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370348073] [2023-11-23 22:27:57,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:57,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:57,348 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:57,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2010471707] [2023-11-23 22:27:57,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:57,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:57,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:57,350 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:57,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-23 22:27:57,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:57,411 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:27:57,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:57,557 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 22:27:57,557 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:27:57,673 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 22:27:57,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:57,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370348073] [2023-11-23 22:27:57,673 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:57,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010471707] [2023-11-23 22:27:57,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2010471707] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:27:57,674 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:27:57,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-23 22:27:57,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946936109] [2023-11-23 22:27:57,674 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:27:57,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 22:27:57,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:57,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 22:27:57,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:27:57,676 INFO L87 Difference]: Start difference. First operand 357 states and 457 transitions. Second operand has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-23 22:27:58,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:58,014 INFO L93 Difference]: Finished difference Result 432 states and 532 transitions. [2023-11-23 22:27:58,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 22:27:58,014 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 73 [2023-11-23 22:27:58,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:58,017 INFO L225 Difference]: With dead ends: 432 [2023-11-23 22:27:58,018 INFO L226 Difference]: Without dead ends: 431 [2023-11-23 22:27:58,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2023-11-23 22:27:58,019 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 176 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:58,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 243 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:27:58,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2023-11-23 22:27:58,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 373. [2023-11-23 22:27:58,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 312 states have (on average 1.2628205128205128) internal successors, (394), 329 states have internal predecessors, (394), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-23 22:27:58,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 474 transitions. [2023-11-23 22:27:58,078 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 474 transitions. Word has length 73 [2023-11-23 22:27:58,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:58,078 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 474 transitions. [2023-11-23 22:27:58,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-23 22:27:58,078 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 474 transitions. [2023-11-23 22:27:58,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-23 22:27:58,079 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:58,080 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:58,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-11-23 22:27:58,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-23 22:27:58,295 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:27:58,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:58,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1882365912, now seen corresponding path program 1 times [2023-11-23 22:27:58,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:58,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532278014] [2023-11-23 22:27:58,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:58,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:58,307 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:58,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1661786894] [2023-11-23 22:27:58,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:58,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:58,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:58,309 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:58,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-23 22:27:58,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:58,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 22:27:58,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:58,530 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 3 proven. 36 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-23 22:27:58,530 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:27:58,709 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 22:27:58,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:58,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532278014] [2023-11-23 22:27:58,710 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:58,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661786894] [2023-11-23 22:27:58,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661786894] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:27:58,711 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:27:58,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-11-23 22:27:58,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241305771] [2023-11-23 22:27:58,712 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:27:58,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-23 22:27:58,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:58,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-23 22:27:58,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2023-11-23 22:27:58,714 INFO L87 Difference]: Start difference. First operand 373 states and 474 transitions. Second operand has 16 states, 15 states have (on average 6.4) internal successors, (96), 16 states have internal predecessors, (96), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-23 22:27:58,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:58,937 INFO L93 Difference]: Finished difference Result 387 states and 486 transitions. [2023-11-23 22:27:58,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 22:27:58,938 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.4) internal successors, (96), 16 states have internal predecessors, (96), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 76 [2023-11-23 22:27:58,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:58,941 INFO L225 Difference]: With dead ends: 387 [2023-11-23 22:27:58,942 INFO L226 Difference]: Without dead ends: 386 [2023-11-23 22:27:58,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-11-23 22:27:58,943 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 110 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:58,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 410 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:27:58,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2023-11-23 22:27:58,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 372. [2023-11-23 22:27:58,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 312 states have (on average 1.2532051282051282) internal successors, (391), 328 states have internal predecessors, (391), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-23 22:27:58,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 471 transitions. [2023-11-23 22:27:58,997 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 471 transitions. Word has length 76 [2023-11-23 22:27:58,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:58,998 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 471 transitions. [2023-11-23 22:27:58,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.4) internal successors, (96), 16 states have internal predecessors, (96), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-23 22:27:58,998 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 471 transitions. [2023-11-23 22:27:58,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-23 22:27:58,999 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:58,999 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:59,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-11-23 22:27:59,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:59,220 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:27:59,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:59,221 INFO L85 PathProgramCache]: Analyzing trace with hash 772411540, now seen corresponding path program 1 times [2023-11-23 22:27:59,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:59,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154863248] [2023-11-23 22:27:59,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:59,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:59,234 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:59,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [785226126] [2023-11-23 22:27:59,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:59,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:59,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:59,236 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:59,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-23 22:27:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:59,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 22:27:59,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:59,680 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 22:27:59,680 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:27:59,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:59,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154863248] [2023-11-23 22:27:59,680 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:59,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785226126] [2023-11-23 22:27:59,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785226126] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:59,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:59,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 22:27:59,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98176519] [2023-11-23 22:27:59,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:59,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 22:27:59,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:59,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 22:27:59,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-23 22:27:59,684 INFO L87 Difference]: Start difference. First operand 372 states and 471 transitions. Second operand has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-23 22:28:00,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:28:00,191 INFO L93 Difference]: Finished difference Result 408 states and 495 transitions. [2023-11-23 22:28:00,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 22:28:00,191 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 78 [2023-11-23 22:28:00,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:28:00,194 INFO L225 Difference]: With dead ends: 408 [2023-11-23 22:28:00,194 INFO L226 Difference]: Without dead ends: 404 [2023-11-23 22:28:00,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-11-23 22:28:00,196 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 198 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 22:28:00,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 275 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 22:28:00,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2023-11-23 22:28:00,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 366. [2023-11-23 22:28:00,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 310 states have (on average 1.2258064516129032) internal successors, (380), 322 states have internal predecessors, (380), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-23 22:28:00,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 460 transitions. [2023-11-23 22:28:00,249 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 460 transitions. Word has length 78 [2023-11-23 22:28:00,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:28:00,250 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 460 transitions. [2023-11-23 22:28:00,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-23 22:28:00,250 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 460 transitions. [2023-11-23 22:28:00,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-23 22:28:00,251 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:28:00,251 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:00,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:00,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:28:00,472 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:28:00,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:00,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1825045891, now seen corresponding path program 1 times [2023-11-23 22:28:00,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:00,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287716858] [2023-11-23 22:28:00,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:00,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:00,484 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:28:00,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1609083367] [2023-11-23 22:28:00,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:00,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:28:00,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:00,485 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:28:00,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-23 22:28:00,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:00,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 22:28:00,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:28:00,862 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 22:28:00,862 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:28:01,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:01,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287716858] [2023-11-23 22:28:01,097 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:28:01,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609083367] [2023-11-23 22:28:01,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609083367] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:28:01,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:28:01,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-23 22:28:01,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064449946] [2023-11-23 22:28:01,098 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 22:28:01,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 22:28:01,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:01,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 22:28:01,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-11-23 22:28:01,099 INFO L87 Difference]: Start difference. First operand 366 states and 460 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-23 22:28:01,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:28:01,494 INFO L93 Difference]: Finished difference Result 381 states and 466 transitions. [2023-11-23 22:28:01,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 22:28:01,495 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 79 [2023-11-23 22:28:01,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:28:01,498 INFO L225 Difference]: With dead ends: 381 [2023-11-23 22:28:01,498 INFO L226 Difference]: Without dead ends: 378 [2023-11-23 22:28:01,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-11-23 22:28:01,501 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 131 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:28:01,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 267 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 22:28:01,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2023-11-23 22:28:01,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 368. [2023-11-23 22:28:01,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 312 states have (on average 1.2179487179487178) internal successors, (380), 324 states have internal predecessors, (380), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-23 22:28:01,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 460 transitions. [2023-11-23 22:28:01,554 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 460 transitions. Word has length 79 [2023-11-23 22:28:01,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:28:01,554 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 460 transitions. [2023-11-23 22:28:01,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-23 22:28:01,554 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 460 transitions. [2023-11-23 22:28:01,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-23 22:28:01,556 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:28:01,557 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:01,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:01,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:28:01,770 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:28:01,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:01,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1825046785, now seen corresponding path program 1 times [2023-11-23 22:28:01,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:01,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443584517] [2023-11-23 22:28:01,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:01,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:01,781 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:28:01,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1794093238] [2023-11-23 22:28:01,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:01,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:28:01,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:01,784 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:28:01,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-23 22:28:01,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:01,841 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:28:01,843 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:28:01,867 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-11-23 22:28:01,868 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:28:01,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:01,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443584517] [2023-11-23 22:28:01,868 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:28:01,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794093238] [2023-11-23 22:28:01,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1794093238] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:01,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:01,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:28:01,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555483325] [2023-11-23 22:28:01,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:01,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:28:01,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:01,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:28:01,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:28:01,871 INFO L87 Difference]: Start difference. First operand 368 states and 460 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-23 22:28:01,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:28:01,920 INFO L93 Difference]: Finished difference Result 466 states and 569 transitions. [2023-11-23 22:28:01,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:28:01,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 79 [2023-11-23 22:28:01,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:28:01,923 INFO L225 Difference]: With dead ends: 466 [2023-11-23 22:28:01,923 INFO L226 Difference]: Without dead ends: 211 [2023-11-23 22:28:01,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:28:01,927 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 11 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:28:01,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 266 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:28:01,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-11-23 22:28:01,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 204. [2023-11-23 22:28:01,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 173 states have (on average 1.1271676300578035) internal successors, (195), 182 states have internal predecessors, (195), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-23 22:28:01,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 231 transitions. [2023-11-23 22:28:01,955 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 231 transitions. Word has length 79 [2023-11-23 22:28:01,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:28:01,956 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 231 transitions. [2023-11-23 22:28:01,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-23 22:28:01,956 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 231 transitions. [2023-11-23 22:28:01,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-23 22:28:01,957 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:28:01,958 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:01,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:02,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-11-23 22:28:02,174 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:28:02,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:02,174 INFO L85 PathProgramCache]: Analyzing trace with hash -741847626, now seen corresponding path program 1 times [2023-11-23 22:28:02,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:02,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286504869] [2023-11-23 22:28:02,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:02,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:02,183 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:28:02,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [885202800] [2023-11-23 22:28:02,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:02,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:28:02,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:02,185 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:28:02,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-23 22:28:02,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:02,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:28:02,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:28:02,347 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 22:28:02,348 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:28:02,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:02,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286504869] [2023-11-23 22:28:02,348 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:28:02,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885202800] [2023-11-23 22:28:02,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885202800] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:02,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:02,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:28:02,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366095225] [2023-11-23 22:28:02,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:02,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:28:02,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:02,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:28:02,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:28:02,351 INFO L87 Difference]: Start difference. First operand 204 states and 231 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-23 22:28:02,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:28:02,558 INFO L93 Difference]: Finished difference Result 208 states and 232 transitions. [2023-11-23 22:28:02,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:28:02,559 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 80 [2023-11-23 22:28:02,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:28:02,560 INFO L225 Difference]: With dead ends: 208 [2023-11-23 22:28:02,561 INFO L226 Difference]: Without dead ends: 207 [2023-11-23 22:28:02,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:28:02,562 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 5 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:28:02,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 263 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:28:02,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-11-23 22:28:02,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 190. [2023-11-23 22:28:02,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 160 states have (on average 1.1125) internal successors, (178), 168 states have internal predecessors, (178), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-23 22:28:02,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 214 transitions. [2023-11-23 22:28:02,591 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 214 transitions. Word has length 80 [2023-11-23 22:28:02,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:28:02,595 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 214 transitions. [2023-11-23 22:28:02,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-23 22:28:02,595 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 214 transitions. [2023-11-23 22:28:02,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-23 22:28:02,596 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:28:02,597 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:02,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:02,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-11-23 22:28:02,811 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:28:02,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:02,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1522439777, now seen corresponding path program 1 times [2023-11-23 22:28:02,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:02,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189046261] [2023-11-23 22:28:02,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:02,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:02,820 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:28:02,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [500536996] [2023-11-23 22:28:02,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:02,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:28:02,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:02,824 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:28:02,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-23 22:28:02,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:02,882 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-23 22:28:02,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:28:03,349 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 22:28:03,349 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:28:03,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:03,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189046261] [2023-11-23 22:28:03,561 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:28:03,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500536996] [2023-11-23 22:28:03,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500536996] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:28:03,561 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:28:03,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-23 22:28:03,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853026463] [2023-11-23 22:28:03,562 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 22:28:03,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 22:28:03,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:03,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 22:28:03,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2023-11-23 22:28:03,563 INFO L87 Difference]: Start difference. First operand 190 states and 214 transitions. Second operand has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-23 22:28:03,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:28:03,895 INFO L93 Difference]: Finished difference Result 193 states and 216 transitions. [2023-11-23 22:28:03,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 22:28:03,896 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 81 [2023-11-23 22:28:03,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:28:03,897 INFO L225 Difference]: With dead ends: 193 [2023-11-23 22:28:03,898 INFO L226 Difference]: Without dead ends: 167 [2023-11-23 22:28:03,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2023-11-23 22:28:03,900 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 100 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:28:03,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 195 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:28:03,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2023-11-23 22:28:03,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2023-11-23 22:28:03,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 138 states have (on average 1.1231884057971016) internal successors, (155), 146 states have internal predecessors, (155), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-23 22:28:03,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 189 transitions. [2023-11-23 22:28:03,933 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 189 transitions. Word has length 81 [2023-11-23 22:28:03,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:28:03,934 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 189 transitions. [2023-11-23 22:28:03,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-23 22:28:03,934 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 189 transitions. [2023-11-23 22:28:03,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-23 22:28:03,935 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:28:03,936 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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, 1] [2023-11-23 22:28:03,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:04,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-23 22:28:04,150 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-23 22:28:04,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:04,150 INFO L85 PathProgramCache]: Analyzing trace with hash 678851371, now seen corresponding path program 1 times [2023-11-23 22:28:04,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:04,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734857590] [2023-11-23 22:28:04,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:04,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:04,159 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:28:04,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [255298756] [2023-11-23 22:28:04,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:04,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:28:04,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:04,161 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:28:04,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-23 22:28:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:04,219 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 22:28:04,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:28:04,329 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 82 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-23 22:28:04,329 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:28:04,445 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-23 22:28:04,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:04,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734857590] [2023-11-23 22:28:04,446 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:28:04,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255298756] [2023-11-23 22:28:04,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255298756] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:28:04,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:28:04,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 8 [2023-11-23 22:28:04,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717928335] [2023-11-23 22:28:04,448 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:28:04,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 22:28:04,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:04,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 22:28:04,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:28:04,450 INFO L87 Difference]: Start difference. First operand 167 states and 189 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 3 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-23 22:28:04,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:28:04,516 INFO L93 Difference]: Finished difference Result 171 states and 192 transitions. [2023-11-23 22:28:04,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 22:28:04,517 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 3 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 83 [2023-11-23 22:28:04,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:28:04,518 INFO L225 Difference]: With dead ends: 171 [2023-11-23 22:28:04,518 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 22:28:04,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 153 SyntacticMatches, 5 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-23 22:28:04,519 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 10 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:28:04,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 128 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:28:04,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 22:28:04,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 22:28:04,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:04,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 22:28:04,523 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 83 [2023-11-23 22:28:04,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:28:04,523 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 22:28:04,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 3 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-23 22:28:04,523 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 22:28:04,524 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 22:28:04,526 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 34 remaining) [2023-11-23 22:28:04,527 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 34 remaining) [2023-11-23 22:28:04,527 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 34 remaining) [2023-11-23 22:28:04,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 34 remaining) [2023-11-23 22:28:04,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 34 remaining) [2023-11-23 22:28:04,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 34 remaining) [2023-11-23 22:28:04,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 34 remaining) [2023-11-23 22:28:04,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 34 remaining) [2023-11-23 22:28:04,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 34 remaining) [2023-11-23 22:28:04,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 34 remaining) [2023-11-23 22:28:04,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 34 remaining) [2023-11-23 22:28:04,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 34 remaining) [2023-11-23 22:28:04,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 34 remaining) [2023-11-23 22:28:04,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 34 remaining) [2023-11-23 22:28:04,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 34 remaining) [2023-11-23 22:28:04,531 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 34 remaining) [2023-11-23 22:28:04,531 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 34 remaining) [2023-11-23 22:28:04,531 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 34 remaining) [2023-11-23 22:28:04,531 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 34 remaining) [2023-11-23 22:28:04,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 34 remaining) [2023-11-23 22:28:04,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 34 remaining) [2023-11-23 22:28:04,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 34 remaining) [2023-11-23 22:28:04,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 34 remaining) [2023-11-23 22:28:04,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 34 remaining) [2023-11-23 22:28:04,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 34 remaining) [2023-11-23 22:28:04,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 34 remaining) [2023-11-23 22:28:04,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 34 remaining) [2023-11-23 22:28:04,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 34 remaining) [2023-11-23 22:28:04,534 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 34 remaining) [2023-11-23 22:28:04,534 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 34 remaining) [2023-11-23 22:28:04,534 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 34 remaining) [2023-11-23 22:28:04,534 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 34 remaining) [2023-11-23 22:28:04,535 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 34 remaining) [2023-11-23 22:28:04,535 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 34 remaining) [2023-11-23 22:28:04,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:04,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-11-23 22:28:04,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 22:28:05,392 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 38) no Hoare annotation was computed. [2023-11-23 22:28:05,392 INFO L899 garLoopResultBuilder]: For program point L60(line 60) no Hoare annotation was computed. [2023-11-23 22:28:05,392 INFO L899 garLoopResultBuilder]: For program point L60-1(line 60) no Hoare annotation was computed. [2023-11-23 22:28:05,392 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW(line 63) no Hoare annotation was computed. [2023-11-23 22:28:05,393 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW(line 56) no Hoare annotation was computed. [2023-11-23 22:28:05,393 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 48) no Hoare annotation was computed. [2023-11-23 22:28:05,393 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW(line 63) no Hoare annotation was computed. [2023-11-23 22:28:05,393 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 13) no Hoare annotation was computed. [2023-11-23 22:28:05,393 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2023-11-23 22:28:05,393 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-11-23 22:28:05,393 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2023-11-23 22:28:05,393 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW(line 57) no Hoare annotation was computed. [2023-11-23 22:28:05,393 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2023-11-23 22:28:05,393 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-23 22:28:05,393 INFO L899 garLoopResultBuilder]: For program point L37-1(line 37) no Hoare annotation was computed. [2023-11-23 22:28:05,394 INFO L899 garLoopResultBuilder]: For program point L37-2(line 37) no Hoare annotation was computed. [2023-11-23 22:28:05,394 INFO L899 garLoopResultBuilder]: For program point L37-3(lines 37 61) no Hoare annotation was computed. [2023-11-23 22:28:05,394 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-11-23 22:28:05,394 INFO L895 garLoopResultBuilder]: At program point L37-5(lines 37 61) the Hoare annotation is: (let ((.cse2 (<= 0 |ULTIMATE.start_main_~r~0#1|)) (.cse0 (<= 1 |ULTIMATE.start_main_~y~0#1|)) (.cse1 (<= |ULTIMATE.start_main_~x~0#1| 2147483647)) (.cse3 (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648))) (.cse4 (<= |ULTIMATE.start_main_~b~0#1| 2147483647))) (or (and (<= 2 ~counter~0) .cse0 (<= ~counter~0 3) .cse1 .cse2 (= |ULTIMATE.start_main_~a~0#1| 1) .cse3 (= |ULTIMATE.start_main_~q~0#1| 1) .cse4 (<= 0 (+ |ULTIMATE.start_main_~b~0#1| 2147483648)) (<= (+ |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) 2147483647)) (and (<= |ULTIMATE.start_main_~a~0#1| 4611686018427387902) .cse0 .cse1 (<= ~counter~0 4) .cse2 .cse3 (= 2 |ULTIMATE.start_main_~q~0#1|) (<= |ULTIMATE.start_main_~r~0#1| (+ (* 2 |ULTIMATE.start_main_~b~0#1|) 9223372036854775807)) (<= (+ (* 2 |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~r~0#1|) 2147483647) (<= 2 |ULTIMATE.start_main_~a~0#1|) (<= 3 ~counter~0)) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~r~0#1| 2147483647) .cse3 (= |ULTIMATE.start_main_~q~0#1| 0) .cse4 (= ~counter~0 0) (= |ULTIMATE.start_main_~a~0#1| 0) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (<= 0 (+ 1073741824 |ULTIMATE.start_main_~b~0#1|)) (<= 0 (+ |ULTIMATE.start_main_~r~0#1| 2147483648))))) [2023-11-23 22:28:05,394 INFO L899 garLoopResultBuilder]: For program point L37-6(lines 37 61) no Hoare annotation was computed. [2023-11-23 22:28:05,394 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2023-11-23 22:28:05,394 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2023-11-23 22:28:05,395 INFO L899 garLoopResultBuilder]: For program point L54-1(line 54) no Hoare annotation was computed. [2023-11-23 22:28:05,395 INFO L899 garLoopResultBuilder]: For program point L54-2(line 54) no Hoare annotation was computed. [2023-11-23 22:28:05,395 INFO L899 garLoopResultBuilder]: For program point L54-3(line 54) no Hoare annotation was computed. [2023-11-23 22:28:05,395 INFO L895 garLoopResultBuilder]: At program point L54-4(line 54) the Hoare annotation is: (and (<= 2 ~counter~0) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= ~counter~0 3) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~r~0#1| 2147483647) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (<= (* 2 |ULTIMATE.start_main_~b~0#1|) |ULTIMATE.start_main_~r~0#1|) (= |ULTIMATE.start_main_~a~0#1| 1) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (= |ULTIMATE.start_main_~q~0#1| 0)) [2023-11-23 22:28:05,395 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW(line 57) no Hoare annotation was computed. [2023-11-23 22:28:05,395 INFO L899 garLoopResultBuilder]: For program point L54-5(line 54) no Hoare annotation was computed. [2023-11-23 22:28:05,395 INFO L899 garLoopResultBuilder]: For program point L46-1(line 46) no Hoare annotation was computed. [2023-11-23 22:28:05,395 INFO L899 garLoopResultBuilder]: For program point L46-2(line 46) no Hoare annotation was computed. [2023-11-23 22:28:05,395 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-23 22:28:05,395 INFO L899 garLoopResultBuilder]: For program point L46-3(lines 46 58) no Hoare annotation was computed. [2023-11-23 22:28:05,396 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 22:28:05,396 INFO L895 garLoopResultBuilder]: At program point L46-5(lines 46 58) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~y~0#1|)) (.cse1 (<= |ULTIMATE.start_main_~x~0#1| 2147483647)) (.cse2 (<= |ULTIMATE.start_main_~r~0#1| 2147483647)) (.cse3 (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648))) (.cse4 (= |ULTIMATE.start_main_~q~0#1| 0))) (or (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~a~0#1| 1) .cse3 .cse4 (= ~counter~0 1) (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|)) (and (<= 2 ~counter~0) .cse0 (<= ~counter~0 3) .cse1 .cse2 (= (* 2 |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~b~0#1|) (<= (+ (* (div (+ (- 1) |ULTIMATE.start_main_~b~0#1|) 2) 2) 2) |ULTIMATE.start_main_~r~0#1|) .cse3 .cse4 (= 2 |ULTIMATE.start_main_~a~0#1|)))) [2023-11-23 22:28:05,396 INFO L899 garLoopResultBuilder]: For program point L46-6(lines 46 58) no Hoare annotation was computed. [2023-11-23 22:28:05,396 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2023-11-23 22:28:05,396 INFO L899 garLoopResultBuilder]: For program point L38-1(line 38) no Hoare annotation was computed. [2023-11-23 22:28:05,396 INFO L895 garLoopResultBuilder]: At program point L38-2(line 38) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~a~0#1| 1) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~r~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~b~0#1| 2147483647) (= ~counter~0 1) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (<= 0 (+ 1073741824 |ULTIMATE.start_main_~b~0#1|)) (<= 0 (+ |ULTIMATE.start_main_~r~0#1| 2147483648))) [2023-11-23 22:28:05,396 INFO L899 garLoopResultBuilder]: For program point L38-3(line 38) no Hoare annotation was computed. [2023-11-23 22:28:05,396 INFO L899 garLoopResultBuilder]: For program point L63(line 63) no Hoare annotation was computed. [2023-11-23 22:28:05,397 INFO L899 garLoopResultBuilder]: For program point L63-1(line 63) no Hoare annotation was computed. [2023-11-23 22:28:05,397 INFO L899 garLoopResultBuilder]: For program point L63-2(line 63) no Hoare annotation was computed. [2023-11-23 22:28:05,397 INFO L902 garLoopResultBuilder]: At program point L63-3(line 63) the Hoare annotation is: true [2023-11-23 22:28:05,397 INFO L899 garLoopResultBuilder]: For program point L63-4(line 63) no Hoare annotation was computed. [2023-11-23 22:28:05,397 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 54) no Hoare annotation was computed. [2023-11-23 22:28:05,397 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW(line 59) no Hoare annotation was computed. [2023-11-23 22:28:05,397 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2023-11-23 22:28:05,397 INFO L899 garLoopResultBuilder]: For program point L47-1(line 47) no Hoare annotation was computed. [2023-11-23 22:28:05,397 INFO L895 garLoopResultBuilder]: At program point L47-2(line 47) the Hoare annotation is: (and (<= 2 ~counter~0) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= ~counter~0 3) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~r~0#1| 2147483647) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~a~0#1| 1) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|)) [2023-11-23 22:28:05,397 INFO L899 garLoopResultBuilder]: For program point L47-3(line 47) no Hoare annotation was computed. [2023-11-23 22:28:05,402 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 47) no Hoare annotation was computed. [2023-11-23 22:28:05,402 INFO L899 garLoopResultBuilder]: For program point L39(line 39) no Hoare annotation was computed. [2023-11-23 22:28:05,402 INFO L899 garLoopResultBuilder]: For program point L39-1(line 39) no Hoare annotation was computed. [2023-11-23 22:28:05,402 INFO L899 garLoopResultBuilder]: For program point L39-2(line 39) no Hoare annotation was computed. [2023-11-23 22:28:05,402 INFO L895 garLoopResultBuilder]: At program point L39-3(line 39) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~a~0#1| 1) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~r~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~b~0#1| 2147483647) (= ~counter~0 1) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (<= 0 (+ 1073741824 |ULTIMATE.start_main_~b~0#1|)) (<= 0 (+ |ULTIMATE.start_main_~r~0#1| 2147483648))) [2023-11-23 22:28:05,403 INFO L899 garLoopResultBuilder]: For program point L39-4(lines 37 61) no Hoare annotation was computed. [2023-11-23 22:28:05,403 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 54) no Hoare annotation was computed. [2023-11-23 22:28:05,403 INFO L899 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2023-11-23 22:28:05,403 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW(line 59) no Hoare annotation was computed. [2023-11-23 22:28:05,403 INFO L899 garLoopResultBuilder]: For program point L48(line 48) no Hoare annotation was computed. [2023-11-23 22:28:05,403 INFO L899 garLoopResultBuilder]: For program point L48-1(line 48) no Hoare annotation was computed. [2023-11-23 22:28:05,403 INFO L899 garLoopResultBuilder]: For program point L48-2(line 48) no Hoare annotation was computed. [2023-11-23 22:28:05,404 INFO L895 garLoopResultBuilder]: At program point L48-3(line 48) the Hoare annotation is: (and (<= 2 ~counter~0) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= ~counter~0 3) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~r~0#1| 2147483647) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~a~0#1| 1) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|)) [2023-11-23 22:28:05,405 INFO L895 garLoopResultBuilder]: At program point L48-4(line 48) the Hoare annotation is: (and (<= 2 ~counter~0) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= ~counter~0 3) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~r~0#1| 2147483647) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~a~0#1| 1) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|)) [2023-11-23 22:28:05,405 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 47) no Hoare annotation was computed. [2023-11-23 22:28:05,405 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2023-11-23 22:28:05,405 INFO L899 garLoopResultBuilder]: For program point L57(line 57) no Hoare annotation was computed. [2023-11-23 22:28:05,405 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW(line 60) no Hoare annotation was computed. [2023-11-23 22:28:05,406 INFO L899 garLoopResultBuilder]: For program point L57-1(line 57) no Hoare annotation was computed. [2023-11-23 22:28:05,406 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW(line 54) no Hoare annotation was computed. [2023-11-23 22:28:05,406 INFO L899 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2023-11-23 22:28:05,406 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 48) no Hoare annotation was computed. [2023-11-23 22:28:05,406 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW(line 63) no Hoare annotation was computed. [2023-11-23 22:28:05,406 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 22:28:05,407 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2023-11-23 22:28:05,407 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW(line 60) no Hoare annotation was computed. [2023-11-23 22:28:05,407 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW(line 54) no Hoare annotation was computed. [2023-11-23 22:28:05,407 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 48) no Hoare annotation was computed. [2023-11-23 22:28:05,407 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW(line 56) no Hoare annotation was computed. [2023-11-23 22:28:05,407 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 38) no Hoare annotation was computed. [2023-11-23 22:28:05,407 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2023-11-23 22:28:05,408 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW(line 63) no Hoare annotation was computed. [2023-11-23 22:28:05,408 INFO L899 garLoopResultBuilder]: For program point L51(line 51) no Hoare annotation was computed. [2023-11-23 22:28:05,408 INFO L899 garLoopResultBuilder]: For program point L51-1(lines 51 52) no Hoare annotation was computed. [2023-11-23 22:28:05,408 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 48) no Hoare annotation was computed. [2023-11-23 22:28:05,408 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2023-11-23 22:28:05,408 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2023-11-23 22:28:05,409 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 14 20) no Hoare annotation was computed. [2023-11-23 22:28:05,409 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 20) no Hoare annotation was computed. [2023-11-23 22:28:05,409 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 14 20) the Hoare annotation is: true [2023-11-23 22:28:05,412 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:05,415 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 22:28:05,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:28:05 BoogieIcfgContainer [2023-11-23 22:28:05,443 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 22:28:05,444 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 22:28:05,444 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 22:28:05,444 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 22:28:05,445 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:27:36" (3/4) ... [2023-11-23 22:28:05,447 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 22:28:05,451 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-23 22:28:05,459 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-23 22:28:05,460 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-23 22:28:05,460 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 22:28:05,460 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 22:28:05,591 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/witness.graphml [2023-11-23 22:28:05,592 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/witness.yml [2023-11-23 22:28:05,593 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 22:28:05,596 INFO L158 Benchmark]: Toolchain (without parser) took 29744.34ms. Allocated memory was 163.6MB in the beginning and 323.0MB in the end (delta: 159.4MB). Free memory was 125.4MB in the beginning and 217.6MB in the end (delta: -92.2MB). Peak memory consumption was 68.9MB. Max. memory is 16.1GB. [2023-11-23 22:28:05,597 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 163.6MB. Free memory is still 138.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:28:05,601 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.99ms. Allocated memory is still 163.6MB. Free memory was 125.4MB in the beginning and 114.5MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 22:28:05,603 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.09ms. Allocated memory is still 163.6MB. Free memory was 114.5MB in the beginning and 112.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:28:05,603 INFO L158 Benchmark]: Boogie Preprocessor took 46.47ms. Allocated memory is still 163.6MB. Free memory was 112.7MB in the beginning and 110.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:28:05,604 INFO L158 Benchmark]: RCFGBuilder took 515.45ms. Allocated memory is still 163.6MB. Free memory was 110.7MB in the beginning and 94.5MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-23 22:28:05,607 INFO L158 Benchmark]: TraceAbstraction took 28696.28ms. Allocated memory was 163.6MB in the beginning and 323.0MB in the end (delta: 159.4MB). Free memory was 94.0MB in the beginning and 222.9MB in the end (delta: -128.9MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. [2023-11-23 22:28:05,607 INFO L158 Benchmark]: Witness Printer took 151.66ms. Allocated memory is still 323.0MB. Free memory was 222.9MB in the beginning and 217.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 22:28:05,608 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 163.6MB. Free memory is still 138.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 275.99ms. Allocated memory is still 163.6MB. Free memory was 125.4MB in the beginning and 114.5MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.09ms. Allocated memory is still 163.6MB. Free memory was 114.5MB in the beginning and 112.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.47ms. Allocated memory is still 163.6MB. Free memory was 112.7MB in the beginning and 110.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 515.45ms. Allocated memory is still 163.6MB. Free memory was 110.7MB in the beginning and 94.5MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 28696.28ms. Allocated memory was 163.6MB in the beginning and 323.0MB in the end (delta: 159.4MB). Free memory was 94.0MB in the beginning and 222.9MB in the end (delta: -128.9MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. * Witness Printer took 151.66ms. Allocated memory is still 323.0MB. Free memory was 222.9MB in the beginning and 217.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 90 locations, 34 error locations. Started 1 CEGAR loops. OverallTime: 28.6s, OverallIterations: 36, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 9.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5020 SdHoareTripleChecker+Valid, 6.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4872 mSDsluCounter, 7916 SdHoareTripleChecker+Invalid, 5.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5345 mSDsCounter, 408 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4897 IncrementalHoareTripleChecker+Invalid, 5305 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 408 mSolverCounterUnsat, 2571 mSDtfsCounter, 4897 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2606 GetRequests, 2332 SyntacticMatches, 10 SemanticMatches, 264 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=822occurred in iteration=25, InterpolantAutomatonStates: 253, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 36 MinimizatonAttempts, 1029 StatesRemovedByMinimization, 28 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 165 PreInvPairs, 177 NumberOfFragments, 415 HoareAnnotationTreeSize, 165 FomulaSimplifications, 1027 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 10 FomulaSimplificationsInter, 278 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 1852 NumberOfCodeBlocks, 1852 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 2378 ConstructedInterpolants, 0 QuantifiedInterpolants, 9140 SizeOfPredicates, 65 NumberOfNonLiveVariables, 4180 ConjunctsInSsa, 198 ConjunctsInUnsatCore, 44 InterpolantComputations, 25 PerfectInterpolantSequences, 1770/1924 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 34 specifications checked. All of them hold - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: ((((((((((1 <= y) && (x <= 2147483647)) && (r <= 2147483647)) && (b == y)) && (a == 1)) && (0 <= (x + 2147483648))) && (q == 0)) && (counter == 1)) && (y <= r)) || ((((((((((2 <= counter) && (1 <= y)) && (counter <= 3)) && (x <= 2147483647)) && (r <= 2147483647)) && ((2 * y) == b)) && (((((-1 + b) / 2) * 2) + 2) <= r)) && (0 <= (x + 2147483648))) && (q == 0)) && (2 == a))) - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: (((((((((((((2 <= counter) && (1 <= y)) && (counter <= 3)) && (x <= 2147483647)) && (0 <= r)) && (a == 1)) && (0 <= (x + 2147483648))) && (q == 1)) && (b <= 2147483647)) && (0 <= (b + 2147483648))) && ((r + y) <= 2147483647)) || (((((((((((a <= 4611686018427387902) && (1 <= y)) && (x <= 2147483647)) && (counter <= 4)) && (0 <= r)) && (0 <= (x + 2147483648))) && (2 == q)) && (r <= ((2 * b) + 9223372036854775807))) && (((2 * y) + r) <= 2147483647)) && (2 <= a)) && (3 <= counter))) || (((((((((((1 <= y) && (x <= 2147483647)) && (r <= 2147483647)) && (0 <= (x + 2147483648))) && (q == 0)) && (b <= 2147483647)) && (counter == 0)) && (a == 0)) && (y <= 2147483647)) && (0 <= (1073741824 + b))) && (0 <= (r + 2147483648)))) RESULT: Ultimate proved your program to be correct! [2023-11-23 22:28:05,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d20726b-82ad-4ec7-b10d-264330ff1fe0/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE