/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 22:18:27,064 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 22:18:27,068 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 22:18:27,124 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 22:18:27,125 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 22:18:27,126 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 22:18:27,128 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 22:18:27,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 22:18:27,132 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 22:18:27,133 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 22:18:27,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 22:18:27,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 22:18:27,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 22:18:27,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 22:18:27,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 22:18:27,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 22:18:27,141 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 22:18:27,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 22:18:27,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 22:18:27,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 22:18:27,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 22:18:27,150 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 22:18:27,152 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 22:18:27,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 22:18:27,158 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 22:18:27,159 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 22:18:27,159 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 22:18:27,160 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 22:18:27,161 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 22:18:27,162 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 22:18:27,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 22:18:27,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 22:18:27,165 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 22:18:27,166 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 22:18:27,167 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 22:18:27,167 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 22:18:27,168 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 22:18:27,169 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 22:18:27,169 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 22:18:27,170 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 22:18:27,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 22:18:27,177 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 22:18:27,206 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 22:18:27,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 22:18:27,207 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 22:18:27,208 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 22:18:27,209 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 22:18:27,209 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 22:18:27,210 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 22:18:27,210 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 22:18:27,210 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 22:18:27,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 22:18:27,211 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 22:18:27,211 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 22:18:27,211 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 22:18:27,211 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 22:18:27,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 22:18:27,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 22:18:27,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 22:18:27,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 22:18:27,213 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 22:18:27,213 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 22:18:27,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 22:18:27,213 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 22:18:27,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 22:18:27,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 22:18:27,214 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 22:18:27,214 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 22:18:27,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 22:18:27,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 22:18:27,215 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 22:18:27,215 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 22:18:27,215 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 22:18:27,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 22:18:27,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 22:18:27,216 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 22:18:27,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 22:18:27,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 22:18:27,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 22:18:27,650 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 22:18:27,651 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 22:18:27,652 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c [2022-10-15 22:18:27,755 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f460c4ce/988fb04dc0b6496f8584c400c50421a9/FLAG0afb3aac6 [2022-10-15 22:18:28,527 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 22:18:28,528 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c [2022-10-15 22:18:28,544 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f460c4ce/988fb04dc0b6496f8584c400c50421a9/FLAG0afb3aac6 [2022-10-15 22:18:28,774 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f460c4ce/988fb04dc0b6496f8584c400c50421a9 [2022-10-15 22:18:28,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 22:18:28,784 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 22:18:28,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 22:18:28,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 22:18:28,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 22:18:28,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:18:28" (1/1) ... [2022-10-15 22:18:28,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fd784ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:28, skipping insertion in model container [2022-10-15 22:18:28,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:18:28" (1/1) ... [2022-10-15 22:18:28,803 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 22:18:28,856 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 22:18:29,198 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c[11714,11727] [2022-10-15 22:18:29,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 22:18:29,301 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 22:18:29,413 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c[11714,11727] [2022-10-15 22:18:29,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 22:18:29,539 INFO L208 MainTranslator]: Completed translation [2022-10-15 22:18:29,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:29 WrapperNode [2022-10-15 22:18:29,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 22:18:29,542 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 22:18:29,542 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 22:18:29,542 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 22:18:29,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:29" (1/1) ... [2022-10-15 22:18:29,572 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:29" (1/1) ... [2022-10-15 22:18:29,656 INFO L138 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1060 [2022-10-15 22:18:29,656 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 22:18:29,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 22:18:29,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 22:18:29,657 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 22:18:29,674 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:29" (1/1) ... [2022-10-15 22:18:29,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:29" (1/1) ... [2022-10-15 22:18:29,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:29" (1/1) ... [2022-10-15 22:18:29,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:29" (1/1) ... [2022-10-15 22:18:29,764 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:29" (1/1) ... [2022-10-15 22:18:29,789 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:29" (1/1) ... [2022-10-15 22:18:29,796 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:29" (1/1) ... [2022-10-15 22:18:29,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:29" (1/1) ... [2022-10-15 22:18:29,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 22:18:29,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 22:18:29,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 22:18:29,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 22:18:29,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:29" (1/1) ... [2022-10-15 22:18:29,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 22:18:29,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:18:29,882 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 22:18:29,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 22:18:29,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 22:18:29,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 22:18:29,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 22:18:29,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 22:18:30,153 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 22:18:30,160 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 22:18:31,454 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 22:18:31,469 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 22:18:31,470 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 22:18:31,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:18:31 BoogieIcfgContainer [2022-10-15 22:18:31,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 22:18:31,477 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 22:18:31,477 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 22:18:31,482 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 22:18:31,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:18:28" (1/3) ... [2022-10-15 22:18:31,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9812a0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:18:31, skipping insertion in model container [2022-10-15 22:18:31,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:29" (2/3) ... [2022-10-15 22:18:31,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9812a0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:18:31, skipping insertion in model container [2022-10-15 22:18:31,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:18:31" (3/3) ... [2022-10-15 22:18:31,486 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c [2022-10-15 22:18:31,514 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 22:18:31,514 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 96 error locations. [2022-10-15 22:18:31,603 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 22:18:31,615 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@43f231f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 22:18:31,615 INFO L358 AbstractCegarLoop]: Starting to check reachability of 96 error locations. [2022-10-15 22:18:31,624 INFO L276 IsEmpty]: Start isEmpty. Operand has 444 states, 347 states have (on average 1.7665706051873198) internal successors, (613), 443 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:31,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-15 22:18:31,634 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:18:31,635 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:18:31,635 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-15 22:18:31,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:18:31,646 INFO L85 PathProgramCache]: Analyzing trace with hash 195771747, now seen corresponding path program 1 times [2022-10-15 22:18:31,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:18:31,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525960738] [2022-10-15 22:18:31,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:18:31,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:18:31,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:18:32,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:18:32,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:18:32,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525960738] [2022-10-15 22:18:32,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525960738] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:18:32,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:18:32,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 22:18:32,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755633442] [2022-10-15 22:18:32,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:18:32,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:18:32,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:18:32,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:18:32,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:18:32,254 INFO L87 Difference]: Start difference. First operand has 444 states, 347 states have (on average 1.7665706051873198) internal successors, (613), 443 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:32,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:18:32,486 INFO L93 Difference]: Finished difference Result 843 states and 1146 transitions. [2022-10-15 22:18:32,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 22:18:32,489 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-15 22:18:32,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:18:32,520 INFO L225 Difference]: With dead ends: 843 [2022-10-15 22:18:32,520 INFO L226 Difference]: Without dead ends: 435 [2022-10-15 22:18:32,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:18:32,538 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 528 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:18:32,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 1248 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 22:18:32,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-10-15 22:18:32,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 435. [2022-10-15 22:18:32,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 345 states have (on average 1.626086956521739) internal successors, (561), 434 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:32,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 561 transitions. [2022-10-15 22:18:32,670 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 561 transitions. Word has length 8 [2022-10-15 22:18:32,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:18:32,671 INFO L495 AbstractCegarLoop]: Abstraction has 435 states and 561 transitions. [2022-10-15 22:18:32,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:32,672 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 561 transitions. [2022-10-15 22:18:32,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-10-15 22:18:32,676 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:18:32,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:18:32,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 22:18:32,679 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-15 22:18:32,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:18:32,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1852820192, now seen corresponding path program 1 times [2022-10-15 22:18:32,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:18:32,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40341273] [2022-10-15 22:18:32,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:18:32,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:18:32,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:18:32,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:18:32,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:18:32,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40341273] [2022-10-15 22:18:32,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40341273] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:18:32,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:18:32,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:18:32,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190107622] [2022-10-15 22:18:32,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:18:32,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:18:32,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:18:32,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:18:32,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:18:32,924 INFO L87 Difference]: Start difference. First operand 435 states and 561 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:32,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:18:32,998 INFO L93 Difference]: Finished difference Result 1035 states and 1340 transitions. [2022-10-15 22:18:32,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:18:32,998 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2022-10-15 22:18:32,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:18:33,003 INFO L225 Difference]: With dead ends: 1035 [2022-10-15 22:18:33,003 INFO L226 Difference]: Without dead ends: 662 [2022-10-15 22:18:33,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:18:33,006 INFO L413 NwaCegarLoop]: 688 mSDtfsCounter, 327 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:18:33,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 1160 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:18:33,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2022-10-15 22:18:33,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 602. [2022-10-15 22:18:33,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 512 states have (on average 1.658203125) internal successors, (849), 601 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:33,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 849 transitions. [2022-10-15 22:18:33,044 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 849 transitions. Word has length 70 [2022-10-15 22:18:33,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:18:33,045 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 849 transitions. [2022-10-15 22:18:33,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:33,045 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 849 transitions. [2022-10-15 22:18:33,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-15 22:18:33,048 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:18:33,048 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:18:33,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 22:18:33,048 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-15 22:18:33,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:18:33,049 INFO L85 PathProgramCache]: Analyzing trace with hash 537205467, now seen corresponding path program 1 times [2022-10-15 22:18:33,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:18:33,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360923097] [2022-10-15 22:18:33,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:18:33,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:18:33,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:18:33,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:18:33,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:18:33,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360923097] [2022-10-15 22:18:33,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360923097] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:18:33,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:18:33,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:18:33,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872649667] [2022-10-15 22:18:33,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:18:33,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:18:33,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:18:33,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:18:33,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:18:33,247 INFO L87 Difference]: Start difference. First operand 602 states and 849 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:33,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:18:33,361 INFO L93 Difference]: Finished difference Result 1506 states and 2159 transitions. [2022-10-15 22:18:33,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:18:33,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 71 [2022-10-15 22:18:33,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:18:33,368 INFO L225 Difference]: With dead ends: 1506 [2022-10-15 22:18:33,369 INFO L226 Difference]: Without dead ends: 972 [2022-10-15 22:18:33,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:18:33,372 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 314 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:18:33,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 1003 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 22:18:33,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2022-10-15 22:18:33,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 912. [2022-10-15 22:18:33,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 822 states have (on average 1.6873479318734794) internal successors, (1387), 911 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:33,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1387 transitions. [2022-10-15 22:18:33,434 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1387 transitions. Word has length 71 [2022-10-15 22:18:33,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:18:33,435 INFO L495 AbstractCegarLoop]: Abstraction has 912 states and 1387 transitions. [2022-10-15 22:18:33,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:33,436 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1387 transitions. [2022-10-15 22:18:33,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-15 22:18:33,437 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:18:33,438 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:18:33,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 22:18:33,438 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-15 22:18:33,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:18:33,439 INFO L85 PathProgramCache]: Analyzing trace with hash -459416660, now seen corresponding path program 1 times [2022-10-15 22:18:33,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:18:33,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247861792] [2022-10-15 22:18:33,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:18:33,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:18:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:18:33,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:18:33,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:18:33,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247861792] [2022-10-15 22:18:33,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247861792] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:18:33,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:18:33,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:18:33,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677393094] [2022-10-15 22:18:33,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:18:33,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:18:33,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:18:33,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:18:33,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:18:33,566 INFO L87 Difference]: Start difference. First operand 912 states and 1387 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:33,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:18:33,694 INFO L93 Difference]: Finished difference Result 2378 states and 3683 transitions. [2022-10-15 22:18:33,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:18:33,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 72 [2022-10-15 22:18:33,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:18:33,705 INFO L225 Difference]: With dead ends: 2378 [2022-10-15 22:18:33,705 INFO L226 Difference]: Without dead ends: 1540 [2022-10-15 22:18:33,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:18:33,709 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 301 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:18:33,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 983 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:18:33,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1540 states. [2022-10-15 22:18:33,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1540 to 1480. [2022-10-15 22:18:33,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1480 states, 1390 states have (on average 1.7115107913669065) internal successors, (2379), 1479 states have internal predecessors, (2379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:33,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1480 states to 1480 states and 2379 transitions. [2022-10-15 22:18:33,845 INFO L78 Accepts]: Start accepts. Automaton has 1480 states and 2379 transitions. Word has length 72 [2022-10-15 22:18:33,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:18:33,845 INFO L495 AbstractCegarLoop]: Abstraction has 1480 states and 2379 transitions. [2022-10-15 22:18:33,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:33,846 INFO L276 IsEmpty]: Start isEmpty. Operand 1480 states and 2379 transitions. [2022-10-15 22:18:33,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-15 22:18:33,847 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:18:33,848 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:18:33,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 22:18:33,848 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-15 22:18:33,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:18:33,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1947428507, now seen corresponding path program 1 times [2022-10-15 22:18:33,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:18:33,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335696517] [2022-10-15 22:18:33,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:18:33,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:18:33,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:18:33,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:18:33,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:18:33,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335696517] [2022-10-15 22:18:33,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335696517] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:18:33,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:18:33,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:18:33,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898870049] [2022-10-15 22:18:33,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:18:33,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:18:33,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:18:33,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:18:33,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:18:33,953 INFO L87 Difference]: Start difference. First operand 1480 states and 2379 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:34,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:18:34,168 INFO L93 Difference]: Finished difference Result 3968 states and 6479 transitions. [2022-10-15 22:18:34,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:18:34,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 73 [2022-10-15 22:18:34,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:18:34,185 INFO L225 Difference]: With dead ends: 3968 [2022-10-15 22:18:34,186 INFO L226 Difference]: Without dead ends: 2568 [2022-10-15 22:18:34,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:18:34,192 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 288 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:18:34,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 1052 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:18:34,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2568 states. [2022-10-15 22:18:34,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2568 to 2508. [2022-10-15 22:18:34,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2508 states, 2418 states have (on average 1.7315963606286187) internal successors, (4187), 2507 states have internal predecessors, (4187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:34,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2508 states to 2508 states and 4187 transitions. [2022-10-15 22:18:34,428 INFO L78 Accepts]: Start accepts. Automaton has 2508 states and 4187 transitions. Word has length 73 [2022-10-15 22:18:34,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:18:34,429 INFO L495 AbstractCegarLoop]: Abstraction has 2508 states and 4187 transitions. [2022-10-15 22:18:34,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:34,429 INFO L276 IsEmpty]: Start isEmpty. Operand 2508 states and 4187 transitions. [2022-10-15 22:18:34,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-15 22:18:34,430 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:18:34,431 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:18:34,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 22:18:34,431 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-15 22:18:34,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:18:34,432 INFO L85 PathProgramCache]: Analyzing trace with hash -727075808, now seen corresponding path program 1 times [2022-10-15 22:18:34,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:18:34,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750370381] [2022-10-15 22:18:34,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:18:34,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:18:34,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:18:34,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:18:34,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:18:34,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750370381] [2022-10-15 22:18:34,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750370381] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:18:34,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:18:34,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:18:34,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68203162] [2022-10-15 22:18:34,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:18:34,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:18:34,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:18:34,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:18:34,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:18:34,528 INFO L87 Difference]: Start difference. First operand 2508 states and 4187 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:34,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:18:34,917 INFO L93 Difference]: Finished difference Result 6826 states and 11543 transitions. [2022-10-15 22:18:34,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:18:34,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 74 [2022-10-15 22:18:34,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:18:34,947 INFO L225 Difference]: With dead ends: 6826 [2022-10-15 22:18:34,948 INFO L226 Difference]: Without dead ends: 4404 [2022-10-15 22:18:34,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:18:34,959 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 275 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:18:34,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 943 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:18:34,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4404 states. [2022-10-15 22:18:35,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4404 to 4344. [2022-10-15 22:18:35,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4344 states, 4254 states have (on average 1.7496473906911143) internal successors, (7443), 4343 states have internal predecessors, (7443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:35,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4344 states to 4344 states and 7443 transitions. [2022-10-15 22:18:35,385 INFO L78 Accepts]: Start accepts. Automaton has 4344 states and 7443 transitions. Word has length 74 [2022-10-15 22:18:35,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:18:35,387 INFO L495 AbstractCegarLoop]: Abstraction has 4344 states and 7443 transitions. [2022-10-15 22:18:35,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:35,388 INFO L276 IsEmpty]: Start isEmpty. Operand 4344 states and 7443 transitions. [2022-10-15 22:18:35,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-10-15 22:18:35,390 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:18:35,391 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:18:35,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 22:18:35,391 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-15 22:18:35,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:18:35,392 INFO L85 PathProgramCache]: Analyzing trace with hash -227051753, now seen corresponding path program 1 times [2022-10-15 22:18:35,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:18:35,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225676471] [2022-10-15 22:18:35,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:18:35,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:18:35,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:18:35,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:18:35,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:18:35,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225676471] [2022-10-15 22:18:35,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225676471] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:18:35,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:18:35,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:18:35,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750159519] [2022-10-15 22:18:35,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:18:35,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:18:35,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:18:35,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:18:35,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:18:35,637 INFO L87 Difference]: Start difference. First operand 4344 states and 7443 transitions. Second operand has 4 states, 3 states have (on average 25.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:37,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:18:37,035 INFO L93 Difference]: Finished difference Result 12038 states and 20649 transitions. [2022-10-15 22:18:37,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 22:18:37,036 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 25.0) internal successors, (75), 4 states have internal predecessors, (75), 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 75 [2022-10-15 22:18:37,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:18:37,113 INFO L225 Difference]: With dead ends: 12038 [2022-10-15 22:18:37,114 INFO L226 Difference]: Without dead ends: 12029 [2022-10-15 22:18:37,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:18:37,120 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 1244 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1244 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-15 22:18:37,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1244 Valid, 855 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-15 22:18:37,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12029 states. [2022-10-15 22:18:37,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12029 to 8543. [2022-10-15 22:18:37,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8543 states, 8453 states have (on average 1.7306281793446114) internal successors, (14629), 8542 states have internal predecessors, (14629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:37,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8543 states to 8543 states and 14629 transitions. [2022-10-15 22:18:37,973 INFO L78 Accepts]: Start accepts. Automaton has 8543 states and 14629 transitions. Word has length 75 [2022-10-15 22:18:37,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:18:37,974 INFO L495 AbstractCegarLoop]: Abstraction has 8543 states and 14629 transitions. [2022-10-15 22:18:37,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 25.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:37,975 INFO L276 IsEmpty]: Start isEmpty. Operand 8543 states and 14629 transitions. [2022-10-15 22:18:37,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-10-15 22:18:37,975 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:18:37,976 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:18:37,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 22:18:37,976 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-15 22:18:37,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:18:37,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1551330496, now seen corresponding path program 1 times [2022-10-15 22:18:37,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:18:37,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938321565] [2022-10-15 22:18:37,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:18:37,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:18:38,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:18:38,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:18:38,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:18:38,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938321565] [2022-10-15 22:18:38,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938321565] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:18:38,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:18:38,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:18:38,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736955519] [2022-10-15 22:18:38,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:18:38,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:18:38,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:18:38,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:18:38,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:18:38,115 INFO L87 Difference]: Start difference. First operand 8543 states and 14629 transitions. Second operand has 4 states, 3 states have (on average 25.333333333333332) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:39,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:18:39,414 INFO L93 Difference]: Finished difference Result 11975 states and 20454 transitions. [2022-10-15 22:18:39,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 22:18:39,415 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 25.333333333333332) internal successors, (76), 4 states have internal predecessors, (76), 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 76 [2022-10-15 22:18:39,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:18:39,470 INFO L225 Difference]: With dead ends: 11975 [2022-10-15 22:18:39,470 INFO L226 Difference]: Without dead ends: 11966 [2022-10-15 22:18:39,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:18:39,476 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 1384 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1384 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 22:18:39,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1384 Valid, 587 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 22:18:39,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11966 states. [2022-10-15 22:18:40,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11966 to 11894. [2022-10-15 22:18:40,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11894 states, 11804 states have (on average 1.7040833615723483) internal successors, (20115), 11893 states have internal predecessors, (20115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:40,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11894 states to 11894 states and 20115 transitions. [2022-10-15 22:18:40,458 INFO L78 Accepts]: Start accepts. Automaton has 11894 states and 20115 transitions. Word has length 76 [2022-10-15 22:18:40,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:18:40,459 INFO L495 AbstractCegarLoop]: Abstraction has 11894 states and 20115 transitions. [2022-10-15 22:18:40,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 25.333333333333332) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:40,459 INFO L276 IsEmpty]: Start isEmpty. Operand 11894 states and 20115 transitions. [2022-10-15 22:18:40,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-10-15 22:18:40,460 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:18:40,461 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:18:40,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 22:18:40,461 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-15 22:18:40,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:18:40,462 INFO L85 PathProgramCache]: Analyzing trace with hash 846605369, now seen corresponding path program 1 times [2022-10-15 22:18:40,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:18:40,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17301801] [2022-10-15 22:18:40,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:18:40,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:18:40,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:18:40,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:18:40,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:18:40,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17301801] [2022-10-15 22:18:40,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17301801] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:18:40,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:18:40,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 22:18:40,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320208354] [2022-10-15 22:18:40,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:18:40,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 22:18:40,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:18:40,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 22:18:40,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:18:40,623 INFO L87 Difference]: Start difference. First operand 11894 states and 20115 transitions. Second operand has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:42,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:18:42,523 INFO L93 Difference]: Finished difference Result 18755 states and 31318 transitions. [2022-10-15 22:18:42,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 22:18:42,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 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 77 [2022-10-15 22:18:42,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:18:42,584 INFO L225 Difference]: With dead ends: 18755 [2022-10-15 22:18:42,584 INFO L226 Difference]: Without dead ends: 18746 [2022-10-15 22:18:42,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 22:18:42,595 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 1964 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1964 SdHoareTripleChecker+Valid, 1283 SdHoareTripleChecker+Invalid, 935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-15 22:18:42,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1964 Valid, 1283 Invalid, 935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 900 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-15 22:18:42,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18746 states. [2022-10-15 22:18:43,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18746 to 15236. [2022-10-15 22:18:43,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15236 states, 15146 states have (on average 1.6797834411725867) internal successors, (25442), 15235 states have internal predecessors, (25442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:43,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15236 states to 15236 states and 25442 transitions. [2022-10-15 22:18:43,962 INFO L78 Accepts]: Start accepts. Automaton has 15236 states and 25442 transitions. Word has length 77 [2022-10-15 22:18:43,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:18:43,962 INFO L495 AbstractCegarLoop]: Abstraction has 15236 states and 25442 transitions. [2022-10-15 22:18:43,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:43,964 INFO L276 IsEmpty]: Start isEmpty. Operand 15236 states and 25442 transitions. [2022-10-15 22:18:43,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-15 22:18:43,965 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:18:43,965 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:18:43,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 22:18:43,965 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-15 22:18:43,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:18:43,966 INFO L85 PathProgramCache]: Analyzing trace with hash 474962914, now seen corresponding path program 1 times [2022-10-15 22:18:43,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:18:43,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152206480] [2022-10-15 22:18:43,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:18:43,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:18:44,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:18:44,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:18:44,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:18:44,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152206480] [2022-10-15 22:18:44,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152206480] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:18:44,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:18:44,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 22:18:44,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489432089] [2022-10-15 22:18:44,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:18:44,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 22:18:44,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:18:44,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 22:18:44,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:18:44,170 INFO L87 Difference]: Start difference. First operand 15236 states and 25442 transitions. Second operand has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:46,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:18:46,024 INFO L93 Difference]: Finished difference Result 18320 states and 30435 transitions. [2022-10-15 22:18:46,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 22:18:46,030 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 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 78 [2022-10-15 22:18:46,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:18:46,091 INFO L225 Difference]: With dead ends: 18320 [2022-10-15 22:18:46,091 INFO L226 Difference]: Without dead ends: 18311 [2022-10-15 22:18:46,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 22:18:46,104 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 2406 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2406 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-15 22:18:46,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2406 Valid, 856 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-15 22:18:46,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18311 states. [2022-10-15 22:18:47,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18311 to 18203. [2022-10-15 22:18:47,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18203 states, 18113 states have (on average 1.6549439628995748) internal successors, (29976), 18202 states have internal predecessors, (29976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:47,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18203 states to 18203 states and 29976 transitions. [2022-10-15 22:18:47,401 INFO L78 Accepts]: Start accepts. Automaton has 18203 states and 29976 transitions. Word has length 78 [2022-10-15 22:18:47,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:18:47,402 INFO L495 AbstractCegarLoop]: Abstraction has 18203 states and 29976 transitions. [2022-10-15 22:18:47,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:47,403 INFO L276 IsEmpty]: Start isEmpty. Operand 18203 states and 29976 transitions. [2022-10-15 22:18:47,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-10-15 22:18:47,404 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:18:47,404 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:18:47,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 22:18:47,405 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-15 22:18:47,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:18:47,405 INFO L85 PathProgramCache]: Analyzing trace with hash -888795987, now seen corresponding path program 1 times [2022-10-15 22:18:47,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:18:47,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671204183] [2022-10-15 22:18:47,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:18:47,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:18:47,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:18:47,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:18:47,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:18:47,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671204183] [2022-10-15 22:18:47,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671204183] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:18:47,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:18:47,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:18:47,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776194110] [2022-10-15 22:18:47,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:18:47,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:18:47,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:18:47,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:18:47,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:18:47,483 INFO L87 Difference]: Start difference. First operand 18203 states and 29976 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:49,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:18:49,448 INFO L93 Difference]: Finished difference Result 50925 states and 83865 transitions. [2022-10-15 22:18:49,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:18:49,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 79 [2022-10-15 22:18:49,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:18:49,548 INFO L225 Difference]: With dead ends: 50925 [2022-10-15 22:18:49,548 INFO L226 Difference]: Without dead ends: 32771 [2022-10-15 22:18:49,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:18:49,586 INFO L413 NwaCegarLoop]: 797 mSDtfsCounter, 323 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:18:49,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 1226 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:18:49,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32771 states. [2022-10-15 22:18:51,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32771 to 32714. [2022-10-15 22:18:52,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32714 states, 32636 states have (on average 1.6478735139110186) internal successors, (53780), 32713 states have internal predecessors, (53780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:52,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32714 states to 32714 states and 53780 transitions. [2022-10-15 22:18:52,101 INFO L78 Accepts]: Start accepts. Automaton has 32714 states and 53780 transitions. Word has length 79 [2022-10-15 22:18:52,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:18:52,102 INFO L495 AbstractCegarLoop]: Abstraction has 32714 states and 53780 transitions. [2022-10-15 22:18:52,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:52,102 INFO L276 IsEmpty]: Start isEmpty. Operand 32714 states and 53780 transitions. [2022-10-15 22:18:52,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-10-15 22:18:52,111 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:18:52,112 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:18:52,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-15 22:18:52,112 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-15 22:18:52,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:18:52,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1838948699, now seen corresponding path program 1 times [2022-10-15 22:18:52,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:18:52,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078381836] [2022-10-15 22:18:52,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:18:52,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:18:52,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:18:52,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:18:52,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:18:52,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078381836] [2022-10-15 22:18:52,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078381836] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:18:52,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:18:52,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 22:18:52,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085567418] [2022-10-15 22:18:52,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:18:52,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 22:18:52,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:18:52,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 22:18:52,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 22:18:52,296 INFO L87 Difference]: Start difference. First operand 32714 states and 53780 transitions. Second operand has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:56,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:18:56,320 INFO L93 Difference]: Finished difference Result 49970 states and 81558 transitions. [2022-10-15 22:18:56,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-15 22:18:56,320 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 states have internal predecessors, (79), 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 79 [2022-10-15 22:18:56,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:18:56,463 INFO L225 Difference]: With dead ends: 49970 [2022-10-15 22:18:56,463 INFO L226 Difference]: Without dead ends: 49961 [2022-10-15 22:18:56,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-10-15 22:18:56,483 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 2662 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2662 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-15 22:18:56,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2662 Valid, 1514 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1005 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-15 22:18:56,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49961 states. [2022-10-15 22:18:59,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49961 to 39007. [2022-10-15 22:18:59,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39007 states, 38932 states have (on average 1.6239854104592624) internal successors, (63225), 39006 states have internal predecessors, (63225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:59,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39007 states to 39007 states and 63225 transitions. [2022-10-15 22:18:59,444 INFO L78 Accepts]: Start accepts. Automaton has 39007 states and 63225 transitions. Word has length 79 [2022-10-15 22:18:59,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:18:59,444 INFO L495 AbstractCegarLoop]: Abstraction has 39007 states and 63225 transitions. [2022-10-15 22:18:59,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:18:59,445 INFO L276 IsEmpty]: Start isEmpty. Operand 39007 states and 63225 transitions. [2022-10-15 22:18:59,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-15 22:18:59,448 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:18:59,448 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:18:59,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 22:18:59,449 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-15 22:18:59,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:18:59,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1172835076, now seen corresponding path program 1 times [2022-10-15 22:18:59,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:18:59,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42887250] [2022-10-15 22:18:59,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:18:59,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:18:59,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:18:59,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:18:59,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:18:59,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42887250] [2022-10-15 22:18:59,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42887250] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:18:59,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:18:59,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 22:18:59,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790237151] [2022-10-15 22:18:59,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:18:59,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 22:18:59,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:18:59,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 22:18:59,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 22:18:59,802 INFO L87 Difference]: Start difference. First operand 39007 states and 63225 transitions. Second operand has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:19:03,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:19:03,381 INFO L93 Difference]: Finished difference Result 49901 states and 80631 transitions. [2022-10-15 22:19:03,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 22:19:03,381 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 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 80 [2022-10-15 22:19:03,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:19:03,465 INFO L225 Difference]: With dead ends: 49901 [2022-10-15 22:19:03,465 INFO L226 Difference]: Without dead ends: 49892 [2022-10-15 22:19:03,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-10-15 22:19:03,480 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 2915 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2915 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-15 22:19:03,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2915 Valid, 1064 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-15 22:19:03,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49892 states. [2022-10-15 22:19:07,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49892 to 49766. [2022-10-15 22:19:07,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49766 states, 49694 states have (on average 1.5997907192015133) internal successors, (79500), 49765 states have internal predecessors, (79500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:19:07,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49766 states to 49766 states and 79500 transitions. [2022-10-15 22:19:07,415 INFO L78 Accepts]: Start accepts. Automaton has 49766 states and 79500 transitions. Word has length 80 [2022-10-15 22:19:07,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:19:07,416 INFO L495 AbstractCegarLoop]: Abstraction has 49766 states and 79500 transitions. [2022-10-15 22:19:07,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:19:07,416 INFO L276 IsEmpty]: Start isEmpty. Operand 49766 states and 79500 transitions. [2022-10-15 22:19:07,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-10-15 22:19:07,417 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:19:07,417 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:19:07,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 22:19:07,417 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-15 22:19:07,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:19:07,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1998149245, now seen corresponding path program 1 times [2022-10-15 22:19:07,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:19:07,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086983854] [2022-10-15 22:19:07,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:19:07,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:19:07,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:19:07,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:19:07,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:19:07,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086983854] [2022-10-15 22:19:07,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086983854] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:19:07,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:19:07,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 22:19:07,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978139241] [2022-10-15 22:19:07,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:19:07,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 22:19:07,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:19:07,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 22:19:07,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 22:19:07,588 INFO L87 Difference]: Start difference. First operand 49766 states and 79500 transitions. Second operand has 7 states, 6 states have (on average 13.5) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:19:13,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:19:13,231 INFO L93 Difference]: Finished difference Result 71971 states and 114567 transitions. [2022-10-15 22:19:13,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-15 22:19:13,232 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.5) internal successors, (81), 7 states have internal predecessors, (81), 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 81 [2022-10-15 22:19:13,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:19:13,376 INFO L225 Difference]: With dead ends: 71971 [2022-10-15 22:19:13,376 INFO L226 Difference]: Without dead ends: 71962 [2022-10-15 22:19:13,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2022-10-15 22:19:13,398 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 3539 mSDsluCounter, 1633 mSDsCounter, 0 mSdLazyCounter, 1311 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3539 SdHoareTripleChecker+Valid, 1950 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-15 22:19:13,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3539 Valid, 1950 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1311 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-15 22:19:13,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71962 states. [2022-10-15 22:19:17,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71962 to 55987. [2022-10-15 22:19:17,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55987 states, 55918 states have (on average 1.578185915089953) internal successors, (88249), 55986 states have internal predecessors, (88249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:19:17,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55987 states to 55987 states and 88249 transitions. [2022-10-15 22:19:17,728 INFO L78 Accepts]: Start accepts. Automaton has 55987 states and 88249 transitions. Word has length 81 [2022-10-15 22:19:17,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:19:17,728 INFO L495 AbstractCegarLoop]: Abstraction has 55987 states and 88249 transitions. [2022-10-15 22:19:17,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.5) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:19:17,730 INFO L276 IsEmpty]: Start isEmpty. Operand 55987 states and 88249 transitions. [2022-10-15 22:19:17,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-10-15 22:19:17,731 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:19:17,731 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:19:17,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-15 22:19:17,732 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-15 22:19:17,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:19:17,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1813084710, now seen corresponding path program 1 times [2022-10-15 22:19:17,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:19:17,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997345881] [2022-10-15 22:19:17,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:19:17,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:19:17,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:19:17,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:19:17,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:19:17,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997345881] [2022-10-15 22:19:17,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997345881] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:19:17,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:19:17,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 22:19:17,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517260956] [2022-10-15 22:19:17,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:19:17,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 22:19:17,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:19:17,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 22:19:17,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 22:19:17,955 INFO L87 Difference]: Start difference. First operand 55987 states and 88249 transitions. Second operand has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:19:23,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:19:23,739 INFO L93 Difference]: Finished difference Result 71863 states and 112623 transitions. [2022-10-15 22:19:23,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-15 22:19:23,739 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 7 states have internal predecessors, (82), 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 82 [2022-10-15 22:19:23,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:19:23,839 INFO L225 Difference]: With dead ends: 71863 [2022-10-15 22:19:23,839 INFO L226 Difference]: Without dead ends: 71854 [2022-10-15 22:19:23,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2022-10-15 22:19:23,852 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 3608 mSDsluCounter, 1198 mSDsCounter, 0 mSdLazyCounter, 1084 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3608 SdHoareTripleChecker+Valid, 1509 SdHoareTripleChecker+Invalid, 1160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:19:23,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3608 Valid, 1509 Invalid, 1160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1084 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-10-15 22:19:23,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71854 states.