/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/array-examples/standard_copyInitSum_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 20:12:04,987 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 20:12:04,990 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 20:12:05,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 20:12:05,030 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 20:12:05,035 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 20:12:05,039 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 20:12:05,051 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 20:12:05,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 20:12:05,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 20:12:05,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 20:12:05,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 20:12:05,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 20:12:05,070 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 20:12:05,071 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 20:12:05,073 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 20:12:05,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 20:12:05,079 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 20:12:05,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 20:12:05,091 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 20:12:05,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 20:12:05,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 20:12:05,099 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 20:12:05,100 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 20:12:05,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 20:12:05,110 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 20:12:05,110 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 20:12:05,112 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 20:12:05,112 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 20:12:05,114 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 20:12:05,114 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 20:12:05,115 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 20:12:05,117 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 20:12:05,118 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 20:12:05,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 20:12:05,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 20:12:05,120 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 20:12:05,121 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 20:12:05,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 20:12:05,122 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 20:12:05,124 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 20:12:05,125 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 20:12:05,177 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 20:12:05,177 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 20:12:05,178 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 20:12:05,178 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 20:12:05,180 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 20:12:05,180 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 20:12:05,182 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 20:12:05,182 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 20:12:05,183 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 20:12:05,183 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 20:12:05,184 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 20:12:05,184 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 20:12:05,184 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 20:12:05,185 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 20:12:05,185 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 20:12:05,185 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 20:12:05,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 20:12:05,185 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 20:12:05,185 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 20:12:05,186 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 20:12:05,186 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 20:12:05,186 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 20:12:05,186 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 20:12:05,186 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 20:12:05,187 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 20:12:05,187 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 20:12:05,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:12:05,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 20:12:05,187 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 20:12:05,188 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 20:12:05,188 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 20:12:05,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 20:12:05,188 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 20:12:05,189 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 20:12:05,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 20:12:05,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 20:12:05,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 20:12:05,654 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 20:12:05,655 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 20:12:05,656 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/standard_copyInitSum_ground.i [2022-10-15 20:12:05,746 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d24df755/538d03e399d7429aa299f7a511bde7fc/FLAG5d5abac24 [2022-10-15 20:12:06,275 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 20:12:06,276 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_copyInitSum_ground.i [2022-10-15 20:12:06,285 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d24df755/538d03e399d7429aa299f7a511bde7fc/FLAG5d5abac24 [2022-10-15 20:12:06,637 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d24df755/538d03e399d7429aa299f7a511bde7fc [2022-10-15 20:12:06,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 20:12:06,647 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 20:12:06,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 20:12:06,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 20:12:06,656 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 20:12:06,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:12:06" (1/1) ... [2022-10-15 20:12:06,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eab1166 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:12:06, skipping insertion in model container [2022-10-15 20:12:06,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:12:06" (1/1) ... [2022-10-15 20:12:06,670 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 20:12:06,696 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 20:12:06,870 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/array-examples/standard_copyInitSum_ground.i[860,873] [2022-10-15 20:12:06,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:12:06,899 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 20:12:06,916 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/array-examples/standard_copyInitSum_ground.i[860,873] [2022-10-15 20:12:06,924 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:12:06,942 INFO L208 MainTranslator]: Completed translation [2022-10-15 20:12:06,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:12:06 WrapperNode [2022-10-15 20:12:06,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 20:12:06,944 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 20:12:06,945 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 20:12:06,945 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 20:12:06,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:12:06" (1/1) ... [2022-10-15 20:12:06,979 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:12:06" (1/1) ... [2022-10-15 20:12:07,019 INFO L138 Inliner]: procedures = 16, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 82 [2022-10-15 20:12:07,020 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 20:12:07,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 20:12:07,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 20:12:07,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 20:12:07,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:12:06" (1/1) ... [2022-10-15 20:12:07,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:12:06" (1/1) ... [2022-10-15 20:12:07,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:12:06" (1/1) ... [2022-10-15 20:12:07,040 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:12:06" (1/1) ... [2022-10-15 20:12:07,059 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:12:06" (1/1) ... [2022-10-15 20:12:07,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:12:06" (1/1) ... [2022-10-15 20:12:07,079 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:12:06" (1/1) ... [2022-10-15 20:12:07,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:12:06" (1/1) ... [2022-10-15 20:12:07,083 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 20:12:07,087 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 20:12:07,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 20:12:07,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 20:12:07,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:12:06" (1/1) ... [2022-10-15 20:12:07,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:12:07,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:12:07,130 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 20:12:07,145 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 20:12:07,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 20:12:07,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 20:12:07,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 20:12:07,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 20:12:07,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 20:12:07,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 20:12:07,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 20:12:07,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 20:12:07,293 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 20:12:07,296 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 20:12:07,582 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 20:12:07,596 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 20:12:07,596 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-15 20:12:07,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:12:07 BoogieIcfgContainer [2022-10-15 20:12:07,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 20:12:07,602 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 20:12:07,602 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 20:12:07,606 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 20:12:07,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 08:12:06" (1/3) ... [2022-10-15 20:12:07,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71c37801 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:12:07, skipping insertion in model container [2022-10-15 20:12:07,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:12:06" (2/3) ... [2022-10-15 20:12:07,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71c37801 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:12:07, skipping insertion in model container [2022-10-15 20:12:07,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:12:07" (3/3) ... [2022-10-15 20:12:07,611 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_copyInitSum_ground.i [2022-10-15 20:12:07,637 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 20:12:07,637 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-10-15 20:12:07,734 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 20:12:07,749 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;@6fc7d7f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 20:12:07,749 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-10-15 20:12:07,770 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 30 states have (on average 1.7) internal successors, (51), 42 states have internal predecessors, (51), 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 20:12:07,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-15 20:12:07,783 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:12:07,784 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-15 20:12:07,786 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:12:07,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:12:07,795 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2022-10-15 20:12:07,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:12:07,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981841434] [2022-10-15 20:12:07,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:07,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:12:08,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:08,219 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 20:12:08,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:12:08,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981841434] [2022-10-15 20:12:08,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981841434] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:12:08,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:12:08,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 20:12:08,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404443757] [2022-10-15 20:12:08,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:12:08,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:12:08,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:12:08,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:12:08,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:12:08,264 INFO L87 Difference]: Start difference. First operand has 43 states, 30 states have (on average 1.7) internal successors, (51), 42 states have internal predecessors, (51), 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 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 20:12:08,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:12:08,341 INFO L93 Difference]: Finished difference Result 100 states and 120 transitions. [2022-10-15 20:12:08,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:12:08,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-10-15 20:12:08,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:12:08,357 INFO L225 Difference]: With dead ends: 100 [2022-10-15 20:12:08,357 INFO L226 Difference]: Without dead ends: 57 [2022-10-15 20:12:08,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 20:12:08,369 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 15 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:12:08,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 66 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:12:08,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-10-15 20:12:08,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 43. [2022-10-15 20:12:08,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 42 states have internal predecessors, (46), 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 20:12:08,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2022-10-15 20:12:08,412 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 4 [2022-10-15 20:12:08,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:12:08,412 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2022-10-15 20:12:08,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 20:12:08,413 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2022-10-15 20:12:08,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-15 20:12:08,414 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:12:08,414 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-10-15 20:12:08,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 20:12:08,415 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:12:08,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:12:08,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629419, now seen corresponding path program 1 times [2022-10-15 20:12:08,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:12:08,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203249215] [2022-10-15 20:12:08,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:08,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:12:08,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:08,484 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:12:08,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:12:08,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203249215] [2022-10-15 20:12:08,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203249215] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:12:08,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:12:08,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 20:12:08,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457756522] [2022-10-15 20:12:08,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:12:08,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:12:08,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:12:08,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:12:08,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:12:08,493 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:08,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:12:08,550 INFO L93 Difference]: Finished difference Result 43 states and 46 transitions. [2022-10-15 20:12:08,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:12:08,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-15 20:12:08,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:12:08,554 INFO L225 Difference]: With dead ends: 43 [2022-10-15 20:12:08,555 INFO L226 Difference]: Without dead ends: 42 [2022-10-15 20:12:08,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 20:12:08,559 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 16 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:12:08,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 45 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:12:08,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-10-15 20:12:08,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-10-15 20:12:08,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 41 states have internal predecessors, (45), 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 20:12:08,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2022-10-15 20:12:08,578 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 7 [2022-10-15 20:12:08,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:12:08,579 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2022-10-15 20:12:08,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:08,579 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2022-10-15 20:12:08,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-15 20:12:08,581 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:12:08,581 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2022-10-15 20:12:08,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 20:12:08,582 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:12:08,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:12:08,583 INFO L85 PathProgramCache]: Analyzing trace with hash 294937186, now seen corresponding path program 1 times [2022-10-15 20:12:08,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:12:08,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629682797] [2022-10-15 20:12:08,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:08,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:12:08,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:08,708 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:12:08,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:12:08,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629682797] [2022-10-15 20:12:08,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629682797] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:12:08,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805180969] [2022-10-15 20:12:08,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:08,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:08,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:12:08,713 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:12:08,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 20:12:08,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:08,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 20:12:08,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:12:08,835 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:12:08,835 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:12:08,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805180969] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:12:08,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:12:08,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-15 20:12:08,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664464093] [2022-10-15 20:12:08,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:12:08,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:12:08,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:12:08,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:12:08,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:12:08,839 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:08,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:12:08,911 INFO L93 Difference]: Finished difference Result 56 states and 59 transitions. [2022-10-15 20:12:08,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:12:08,912 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-15 20:12:08,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:12:08,913 INFO L225 Difference]: With dead ends: 56 [2022-10-15 20:12:08,913 INFO L226 Difference]: Without dead ends: 55 [2022-10-15 20:12:08,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 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 20:12:08,916 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 42 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:12:08,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 49 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:12:08,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-10-15 20:12:08,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 39. [2022-10-15 20:12:08,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 38 states have internal predecessors, (42), 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 20:12:08,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2022-10-15 20:12:08,924 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 8 [2022-10-15 20:12:08,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:12:08,925 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2022-10-15 20:12:08,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:08,926 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2022-10-15 20:12:08,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 20:12:08,926 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:12:08,926 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:12:08,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 20:12:09,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:09,142 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:12:09,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:12:09,144 INFO L85 PathProgramCache]: Analyzing trace with hash -34860664, now seen corresponding path program 1 times [2022-10-15 20:12:09,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:12:09,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480532502] [2022-10-15 20:12:09,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:09,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:12:09,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:09,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:12:09,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:12:09,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480532502] [2022-10-15 20:12:09,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480532502] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:12:09,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538388281] [2022-10-15 20:12:09,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:09,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:09,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:12:09,335 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:12:09,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 20:12:09,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:09,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 20:12:09,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:12:09,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:12:09,421 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:12:09,446 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:12:09,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538388281] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:12:09,447 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:12:09,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-15 20:12:09,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044522680] [2022-10-15 20:12:09,448 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:12:09,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 20:12:09,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:12:09,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 20:12:09,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-15 20:12:09,451 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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 20:12:09,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:12:09,538 INFO L93 Difference]: Finished difference Result 95 states and 103 transitions. [2022-10-15 20:12:09,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 20:12:09,541 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-15 20:12:09,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:12:09,545 INFO L225 Difference]: With dead ends: 95 [2022-10-15 20:12:09,545 INFO L226 Difference]: Without dead ends: 62 [2022-10-15 20:12:09,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-15 20:12:09,548 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 34 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:12:09,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 100 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:12:09,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-10-15 20:12:09,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 48. [2022-10-15 20:12:09,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 38 states have (on average 1.3421052631578947) internal successors, (51), 47 states have internal predecessors, (51), 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 20:12:09,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 51 transitions. [2022-10-15 20:12:09,559 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 51 transitions. Word has length 10 [2022-10-15 20:12:09,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:12:09,560 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 51 transitions. [2022-10-15 20:12:09,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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 20:12:09,560 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 51 transitions. [2022-10-15 20:12:09,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-15 20:12:09,561 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:12:09,561 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:12:09,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 20:12:09,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-15 20:12:09,778 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:12:09,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:12:09,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1560493969, now seen corresponding path program 2 times [2022-10-15 20:12:09,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:12:09,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089162883] [2022-10-15 20:12:09,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:09,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:12:09,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:09,910 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-15 20:12:09,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:12:09,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089162883] [2022-10-15 20:12:09,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089162883] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:12:09,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:12:09,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:12:09,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851706505] [2022-10-15 20:12:09,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:12:09,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:12:09,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:12:09,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:12:09,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:12:09,914 INFO L87 Difference]: Start difference. First operand 48 states and 51 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:09,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:12:09,994 INFO L93 Difference]: Finished difference Result 62 states and 65 transitions. [2022-10-15 20:12:09,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:12:09,995 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-15 20:12:09,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:12:09,996 INFO L225 Difference]: With dead ends: 62 [2022-10-15 20:12:09,997 INFO L226 Difference]: Without dead ends: 60 [2022-10-15 20:12:09,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 20:12:09,999 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 14 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:12:10,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 78 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:12:10,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-10-15 20:12:10,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 51. [2022-10-15 20:12:10,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 50 states have internal predecessors, (54), 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 20:12:10,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 54 transitions. [2022-10-15 20:12:10,009 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 54 transitions. Word has length 19 [2022-10-15 20:12:10,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:12:10,010 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 54 transitions. [2022-10-15 20:12:10,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:10,011 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 54 transitions. [2022-10-15 20:12:10,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-15 20:12:10,012 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:12:10,012 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:12:10,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 20:12:10,012 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:12:10,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:12:10,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1557557675, now seen corresponding path program 1 times [2022-10-15 20:12:10,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:12:10,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776613054] [2022-10-15 20:12:10,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:10,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:12:10,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:10,154 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-15 20:12:10,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:12:10,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776613054] [2022-10-15 20:12:10,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776613054] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:12:10,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:12:10,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:12:10,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941102942] [2022-10-15 20:12:10,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:12:10,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:12:10,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:12:10,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:12:10,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:12:10,162 INFO L87 Difference]: Start difference. First operand 51 states and 54 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:10,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:12:10,230 INFO L93 Difference]: Finished difference Result 51 states and 54 transitions. [2022-10-15 20:12:10,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:12:10,234 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-10-15 20:12:10,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:12:10,235 INFO L225 Difference]: With dead ends: 51 [2022-10-15 20:12:10,235 INFO L226 Difference]: Without dead ends: 50 [2022-10-15 20:12:10,236 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 20:12:10,241 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 16 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:12:10,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 67 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:12:10,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-10-15 20:12:10,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-10-15 20:12:10,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 41 states have (on average 1.2926829268292683) internal successors, (53), 49 states have internal predecessors, (53), 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 20:12:10,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2022-10-15 20:12:10,261 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 23 [2022-10-15 20:12:10,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:12:10,262 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2022-10-15 20:12:10,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:10,262 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2022-10-15 20:12:10,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-15 20:12:10,263 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:12:10,264 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:12:10,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 20:12:10,264 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:12:10,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:12:10,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1039596286, now seen corresponding path program 1 times [2022-10-15 20:12:10,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:12:10,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483996021] [2022-10-15 20:12:10,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:10,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:12:10,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:10,501 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-15 20:12:10,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:12:10,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483996021] [2022-10-15 20:12:10,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483996021] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:12:10,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751999029] [2022-10-15 20:12:10,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:10,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:10,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:12:10,510 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:12:10,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 20:12:10,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:10,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 20:12:10,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:12:10,638 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:12:10,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:12:10,724 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:12:10,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751999029] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:12:10,725 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:12:10,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 14 [2022-10-15 20:12:10,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861716415] [2022-10-15 20:12:10,726 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:12:10,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-15 20:12:10,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:12:10,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-15 20:12:10,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2022-10-15 20:12:10,728 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 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 20:12:10,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:12:10,840 INFO L93 Difference]: Finished difference Result 117 states and 129 transitions. [2022-10-15 20:12:10,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-15 20:12:10,841 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 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 24 [2022-10-15 20:12:10,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:12:10,842 INFO L225 Difference]: With dead ends: 117 [2022-10-15 20:12:10,842 INFO L226 Difference]: Without dead ends: 82 [2022-10-15 20:12:10,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=116, Unknown=0, NotChecked=0, Total=210 [2022-10-15 20:12:10,844 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 92 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:12:10,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 100 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:12:10,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-10-15 20:12:10,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 69. [2022-10-15 20:12:10,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 60 states have (on average 1.2) internal successors, (72), 68 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 20:12:10,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 72 transitions. [2022-10-15 20:12:10,855 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 72 transitions. Word has length 24 [2022-10-15 20:12:10,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:12:10,856 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 72 transitions. [2022-10-15 20:12:10,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 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 20:12:10,856 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 72 transitions. [2022-10-15 20:12:10,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-15 20:12:10,858 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:12:10,858 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-15 20:12:10,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 20:12:11,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:11,072 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:12:11,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:12:11,074 INFO L85 PathProgramCache]: Analyzing trace with hash 464539604, now seen corresponding path program 1 times [2022-10-15 20:12:11,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:12:11,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961966554] [2022-10-15 20:12:11,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:11,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:12:11,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:11,381 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:12:11,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:12:11,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961966554] [2022-10-15 20:12:11,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961966554] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:12:11,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330563598] [2022-10-15 20:12:11,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:11,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:11,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:12:11,384 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:12:11,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 20:12:11,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:11,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-15 20:12:11,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:12:11,555 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:12:11,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:12:11,799 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:12:11,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330563598] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:12:11,800 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:12:11,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2022-10-15 20:12:11,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174345240] [2022-10-15 20:12:11,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:12:11,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-15 20:12:11,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:12:11,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-15 20:12:11,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-10-15 20:12:11,804 INFO L87 Difference]: Start difference. First operand 69 states and 72 transitions. Second operand has 25 states, 25 states have (on average 3.0) internal successors, (75), 25 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 20:12:11,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:12:11,961 INFO L93 Difference]: Finished difference Result 150 states and 167 transitions. [2022-10-15 20:12:11,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-15 20:12:11,962 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.0) internal successors, (75), 25 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 42 [2022-10-15 20:12:11,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:12:11,963 INFO L225 Difference]: With dead ends: 150 [2022-10-15 20:12:11,963 INFO L226 Difference]: Without dead ends: 114 [2022-10-15 20:12:11,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-10-15 20:12:11,965 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 137 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:12:11,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 110 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:12:11,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-10-15 20:12:11,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 105. [2022-10-15 20:12:11,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 96 states have (on average 1.125) internal successors, (108), 104 states have internal predecessors, (108), 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 20:12:11,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 108 transitions. [2022-10-15 20:12:11,984 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 108 transitions. Word has length 42 [2022-10-15 20:12:11,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:12:11,985 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 108 transitions. [2022-10-15 20:12:11,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.0) internal successors, (75), 25 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 20:12:11,985 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 108 transitions. [2022-10-15 20:12:11,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-15 20:12:11,988 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:12:11,988 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-15 20:12:12,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 20:12:12,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:12,202 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:12:12,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:12:12,203 INFO L85 PathProgramCache]: Analyzing trace with hash 670678932, now seen corresponding path program 2 times [2022-10-15 20:12:12,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:12:12,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554048879] [2022-10-15 20:12:12,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:12,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:12:12,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:13,054 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:12:13,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:12:13,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554048879] [2022-10-15 20:12:13,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554048879] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:12:13,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759278209] [2022-10-15 20:12:13,056 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 20:12:13,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:13,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:12:13,057 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:12:13,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 20:12:13,172 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 20:12:13,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:12:13,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-15 20:12:13,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:12:13,355 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:12:13,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:12:14,133 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:12:14,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759278209] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:12:14,133 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:12:14,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2022-10-15 20:12:14,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845301044] [2022-10-15 20:12:14,134 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:12:14,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-10-15 20:12:14,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:12:14,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-10-15 20:12:14,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2022-10-15 20:12:14,138 INFO L87 Difference]: Start difference. First operand 105 states and 108 transitions. Second operand has 49 states, 49 states have (on average 3.0) internal successors, (147), 49 states have internal predecessors, (147), 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 20:12:14,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:12:14,390 INFO L93 Difference]: Finished difference Result 222 states and 251 transitions. [2022-10-15 20:12:14,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-15 20:12:14,391 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 3.0) internal successors, (147), 49 states have internal predecessors, (147), 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 20:12:14,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:12:14,393 INFO L225 Difference]: With dead ends: 222 [2022-10-15 20:12:14,393 INFO L226 Difference]: Without dead ends: 186 [2022-10-15 20:12:14,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2022-10-15 20:12:14,395 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 187 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 20:12:14,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 132 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 20:12:14,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-10-15 20:12:14,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 177. [2022-10-15 20:12:14,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 168 states have (on average 1.0714285714285714) internal successors, (180), 176 states have internal predecessors, (180), 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 20:12:14,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 180 transitions. [2022-10-15 20:12:14,416 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 180 transitions. Word has length 78 [2022-10-15 20:12:14,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:12:14,420 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 180 transitions. [2022-10-15 20:12:14,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 3.0) internal successors, (147), 49 states have internal predecessors, (147), 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 20:12:14,421 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 180 transitions. [2022-10-15 20:12:14,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-10-15 20:12:14,428 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:12:14,428 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-15 20:12:14,459 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 20:12:14,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:14,645 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:12:14,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:12:14,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1672871700, now seen corresponding path program 3 times [2022-10-15 20:12:14,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:12:14,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367525650] [2022-10-15 20:12:14,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:14,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:12:14,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:17,457 INFO L134 CoverageAnalysis]: Checked inductivity of 3155 backedges. 0 proven. 3151 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:12:17,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:12:17,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367525650] [2022-10-15 20:12:17,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367525650] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:12:17,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125072171] [2022-10-15 20:12:17,464 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 20:12:17,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:17,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:12:17,469 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:12:17,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-15 20:12:17,559 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-15 20:12:17,559 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:12:17,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 20:12:17,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:12:17,640 INFO L134 CoverageAnalysis]: Checked inductivity of 3155 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3151 trivial. 0 not checked. [2022-10-15 20:12:17,640 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:12:17,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125072171] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:12:17,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:12:17,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [49] total 51 [2022-10-15 20:12:17,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942907057] [2022-10-15 20:12:17,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:12:17,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:12:17,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:12:17,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:12:17,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1181, Invalid=1369, Unknown=0, NotChecked=0, Total=2550 [2022-10-15 20:12:17,644 INFO L87 Difference]: Start difference. First operand 177 states and 180 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:17,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:12:17,697 INFO L93 Difference]: Finished difference Result 177 states and 180 transitions. [2022-10-15 20:12:17,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:12:17,697 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 150 [2022-10-15 20:12:17,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:12:17,699 INFO L225 Difference]: With dead ends: 177 [2022-10-15 20:12:17,699 INFO L226 Difference]: Without dead ends: 176 [2022-10-15 20:12:17,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1185, Invalid=1467, Unknown=0, NotChecked=0, Total=2652 [2022-10-15 20:12:17,702 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 29 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:12:17,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 48 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:12:17,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-10-15 20:12:17,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2022-10-15 20:12:17,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 168 states have (on average 1.0654761904761905) internal successors, (179), 175 states have internal predecessors, (179), 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 20:12:17,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 179 transitions. [2022-10-15 20:12:17,716 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 179 transitions. Word has length 150 [2022-10-15 20:12:17,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:12:17,717 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 179 transitions. [2022-10-15 20:12:17,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 20:12:17,717 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 179 transitions. [2022-10-15 20:12:17,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-10-15 20:12:17,719 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:12:17,720 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:12:17,766 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-15 20:12:17,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:17,921 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:12:17,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:12:17,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1949148574, now seen corresponding path program 2 times [2022-10-15 20:12:17,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:12:17,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992049781] [2022-10-15 20:12:17,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:17,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:12:18,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:20,323 INFO L134 CoverageAnalysis]: Checked inductivity of 3157 backedges. 0 proven. 3151 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 20:12:20,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:12:20,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992049781] [2022-10-15 20:12:20,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992049781] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:12:20,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681565100] [2022-10-15 20:12:20,324 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 20:12:20,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:20,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:12:20,325 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:12:20,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-15 20:12:20,485 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 20:12:20,485 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:12:20,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 48 conjunts are in the unsatisfiable core [2022-10-15 20:12:20,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:12:20,694 INFO L134 CoverageAnalysis]: Checked inductivity of 3157 backedges. 0 proven. 3151 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 20:12:20,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:12:23,664 INFO L134 CoverageAnalysis]: Checked inductivity of 3157 backedges. 0 proven. 3151 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 20:12:23,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681565100] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:12:23,665 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:12:23,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 97 [2022-10-15 20:12:23,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123264890] [2022-10-15 20:12:23,665 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:12:23,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2022-10-15 20:12:23,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:12:23,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2022-10-15 20:12:23,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2022-10-15 20:12:23,673 INFO L87 Difference]: Start difference. First operand 176 states and 179 transitions. Second operand has 97 states, 97 states have (on average 3.0309278350515463) internal successors, (294), 97 states have internal predecessors, (294), 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 20:12:24,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:12:24,234 INFO L93 Difference]: Finished difference Result 364 states and 417 transitions. [2022-10-15 20:12:24,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-10-15 20:12:24,234 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 97 states have (on average 3.0309278350515463) internal successors, (294), 97 states have internal predecessors, (294), 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 154 [2022-10-15 20:12:24,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:12:24,238 INFO L225 Difference]: With dead ends: 364 [2022-10-15 20:12:24,238 INFO L226 Difference]: Without dead ends: 329 [2022-10-15 20:12:24,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2022-10-15 20:12:24,243 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 270 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 20:12:24,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 155 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 20:12:24,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2022-10-15 20:12:24,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 320. [2022-10-15 20:12:24,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 312 states have (on average 1.0352564102564104) internal successors, (323), 319 states have internal predecessors, (323), 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 20:12:24,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 323 transitions. [2022-10-15 20:12:24,264 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 323 transitions. Word has length 154 [2022-10-15 20:12:24,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:12:24,265 INFO L495 AbstractCegarLoop]: Abstraction has 320 states and 323 transitions. [2022-10-15 20:12:24,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 3.0309278350515463) internal successors, (294), 97 states have internal predecessors, (294), 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 20:12:24,265 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 323 transitions. [2022-10-15 20:12:24,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-10-15 20:12:24,269 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:12:24,269 INFO L195 NwaCegarLoop]: trace histogram [94, 94, 94, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:12:24,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-15 20:12:24,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:24,484 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:12:24,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:12:24,485 INFO L85 PathProgramCache]: Analyzing trace with hash -451356318, now seen corresponding path program 3 times [2022-10-15 20:12:24,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:12:24,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831060449] [2022-10-15 20:12:24,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:24,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:12:24,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:32,343 INFO L134 CoverageAnalysis]: Checked inductivity of 13213 backedges. 0 proven. 13207 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 20:12:32,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:12:32,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831060449] [2022-10-15 20:12:32,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831060449] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:12:32,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043439209] [2022-10-15 20:12:32,344 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 20:12:32,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:32,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:12:32,350 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:12:32,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-15 20:12:32,484 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-15 20:12:32,485 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:12:32,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 20:12:32,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:12:32,648 INFO L134 CoverageAnalysis]: Checked inductivity of 13213 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 13207 trivial. 0 not checked. [2022-10-15 20:12:32,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:12:33,008 INFO L134 CoverageAnalysis]: Checked inductivity of 13213 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 13207 trivial. 0 not checked. [2022-10-15 20:12:33,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043439209] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:12:33,009 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:12:33,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 7, 7] total 105 [2022-10-15 20:12:33,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622518240] [2022-10-15 20:12:33,011 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:12:33,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2022-10-15 20:12:33,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:12:33,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2022-10-15 20:12:33,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5064, Invalid=5856, Unknown=0, NotChecked=0, Total=10920 [2022-10-15 20:12:33,021 INFO L87 Difference]: Start difference. First operand 320 states and 323 transitions. Second operand has 105 states, 105 states have (on average 3.038095238095238) internal successors, (319), 105 states have internal predecessors, (319), 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 20:12:33,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:12:33,728 INFO L93 Difference]: Finished difference Result 388 states and 400 transitions. [2022-10-15 20:12:33,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-10-15 20:12:33,729 INFO L78 Accepts]: Start accepts. Automaton has has 105 states, 105 states have (on average 3.038095238095238) internal successors, (319), 105 states have internal predecessors, (319), 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 298 [2022-10-15 20:12:33,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:12:33,732 INFO L225 Difference]: With dead ends: 388 [2022-10-15 20:12:33,732 INFO L226 Difference]: Without dead ends: 353 [2022-10-15 20:12:33,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 695 GetRequests, 588 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=5382, Invalid=6390, Unknown=0, NotChecked=0, Total=11772 [2022-10-15 20:12:33,740 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 472 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 20:12:33,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 168 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 20:12:33,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-10-15 20:12:33,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 344. [2022-10-15 20:12:33,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 336 states have (on average 1.0327380952380953) internal successors, (347), 343 states have internal predecessors, (347), 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 20:12:33,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 347 transitions. [2022-10-15 20:12:33,775 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 347 transitions. Word has length 298 [2022-10-15 20:12:33,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:12:33,776 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 347 transitions. [2022-10-15 20:12:33,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 105 states have (on average 3.038095238095238) internal successors, (319), 105 states have internal predecessors, (319), 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 20:12:33,777 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 347 transitions. [2022-10-15 20:12:33,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2022-10-15 20:12:33,782 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:12:33,782 INFO L195 NwaCegarLoop]: trace histogram [98, 98, 98, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:12:33,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-15 20:12:33,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-15 20:12:33,997 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:12:33,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:12:33,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1142792338, now seen corresponding path program 4 times [2022-10-15 20:12:33,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:12:33,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761319241] [2022-10-15 20:12:33,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:34,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:12:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:42,185 INFO L134 CoverageAnalysis]: Checked inductivity of 14402 backedges. 0 proven. 14357 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-15 20:12:42,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:12:42,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761319241] [2022-10-15 20:12:42,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761319241] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:12:42,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427070307] [2022-10-15 20:12:42,186 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-15 20:12:42,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:42,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:12:42,188 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:12:42,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-15 20:12:42,467 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-15 20:12:42,468 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:12:42,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 100 conjunts are in the unsatisfiable core [2022-10-15 20:12:42,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:12:42,959 INFO L134 CoverageAnalysis]: Checked inductivity of 14402 backedges. 0 proven. 14357 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-15 20:12:42,959 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:12:56,461 INFO L134 CoverageAnalysis]: Checked inductivity of 14402 backedges. 0 proven. 14357 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-15 20:12:56,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427070307] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:12:56,461 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:12:56,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [101, 101, 101] total 201 [2022-10-15 20:12:56,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171632980] [2022-10-15 20:12:56,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:12:56,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 201 states [2022-10-15 20:12:56,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:12:56,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 201 interpolants. [2022-10-15 20:12:56,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20100, Invalid=20100, Unknown=0, NotChecked=0, Total=40200 [2022-10-15 20:12:56,480 INFO L87 Difference]: Start difference. First operand 344 states and 347 transitions. Second operand has 201 states, 201 states have (on average 3.014925373134328) internal successors, (606), 201 states have internal predecessors, (606), 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 20:12:58,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:12:58,295 INFO L93 Difference]: Finished difference Result 700 states and 805 transitions. [2022-10-15 20:12:58,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 200 states. [2022-10-15 20:12:58,296 INFO L78 Accepts]: Start accepts. Automaton has has 201 states, 201 states have (on average 3.014925373134328) internal successors, (606), 201 states have internal predecessors, (606), 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 322 [2022-10-15 20:12:58,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:12:58,299 INFO L225 Difference]: With dead ends: 700 [2022-10-15 20:12:58,300 INFO L226 Difference]: Without dead ends: 653 [2022-10-15 20:12:58,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 743 GetRequests, 544 SyntacticMatches, 0 SemanticMatches, 199 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 17.0s TimeCoverageRelationStatistics Valid=20100, Invalid=20100, Unknown=0, NotChecked=0, Total=40200 [2022-10-15 20:12:58,305 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 664 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-15 20:12:58,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 113 Invalid, 758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-15 20:12:58,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2022-10-15 20:12:58,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 644. [2022-10-15 20:12:58,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 636 states have (on average 1.0172955974842768) internal successors, (647), 643 states have internal predecessors, (647), 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 20:12:58,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 647 transitions. [2022-10-15 20:12:58,336 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 647 transitions. Word has length 322 [2022-10-15 20:12:58,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:12:58,337 INFO L495 AbstractCegarLoop]: Abstraction has 644 states and 647 transitions. [2022-10-15 20:12:58,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 201 states, 201 states have (on average 3.014925373134328) internal successors, (606), 201 states have internal predecessors, (606), 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 20:12:58,338 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 647 transitions. [2022-10-15 20:12:58,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2022-10-15 20:12:58,352 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:12:58,352 INFO L195 NwaCegarLoop]: trace histogram [198, 198, 198, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:12:58,388 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-15 20:12:58,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-15 20:12:58,568 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:12:58,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:12:58,569 INFO L85 PathProgramCache]: Analyzing trace with hash 431727278, now seen corresponding path program 5 times [2022-10-15 20:12:58,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:12:58,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052063512] [2022-10-15 20:12:58,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:58,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:12:59,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat