./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0caa59e1faf0ad3d2791737919ecbef32e653ee10212e2c418a84055594f6a3c --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 08:42:02,825 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 08:42:02,827 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 08:42:02,862 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 08:42:02,863 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 08:42:02,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 08:42:02,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 08:42:02,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 08:42:02,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 08:42:02,880 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 08:42:02,881 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 08:42:02,882 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 08:42:02,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 08:42:02,885 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 08:42:02,886 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 08:42:02,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 08:42:02,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 08:42:02,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 08:42:02,895 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 08:42:02,901 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 08:42:02,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 08:42:02,903 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 08:42:02,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 08:42:02,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 08:42:02,912 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 08:42:02,912 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 08:42:02,912 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 08:42:02,914 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 08:42:02,914 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 08:42:02,915 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 08:42:02,915 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 08:42:02,916 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 08:42:02,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 08:42:02,918 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 08:42:02,919 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 08:42:02,919 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 08:42:02,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 08:42:02,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 08:42:02,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 08:42:02,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 08:42:02,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 08:42:02,924 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-12-28 08:42:02,958 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 08:42:02,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 08:42:02,959 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 08:42:02,959 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 08:42:02,960 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 08:42:02,961 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 08:42:02,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 08:42:02,962 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 08:42:02,962 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 08:42:02,962 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 08:42:02,963 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 08:42:02,963 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 08:42:02,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 08:42:02,964 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 08:42:02,964 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 08:42:02,964 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 08:42:02,964 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-28 08:42:02,964 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 08:42:02,965 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 08:42:02,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 08:42:02,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 08:42:02,965 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 08:42:02,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 08:42:02,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 08:42:02,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 08:42:02,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 08:42:02,966 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 08:42:02,966 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 08:42:02,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 08:42:02,967 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 08:42:02,967 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0caa59e1faf0ad3d2791737919ecbef32e653ee10212e2c418a84055594f6a3c [2021-12-28 08:42:03,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 08:42:03,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 08:42:03,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 08:42:03,296 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 08:42:03,297 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 08:42:03,298 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-2.c [2021-12-28 08:42:03,367 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40f15d4fb/b9e186956e504936b57454ba7cd8d5ae/FLAG5110881b7 [2021-12-28 08:42:03,799 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 08:42:03,799 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-2.c [2021-12-28 08:42:03,804 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40f15d4fb/b9e186956e504936b57454ba7cd8d5ae/FLAG5110881b7 [2021-12-28 08:42:03,823 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40f15d4fb/b9e186956e504936b57454ba7cd8d5ae [2021-12-28 08:42:03,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 08:42:03,828 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 08:42:03,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 08:42:03,840 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 08:42:03,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 08:42:03,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 08:42:03" (1/1) ... [2021-12-28 08:42:03,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@511099e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:42:03, skipping insertion in model container [2021-12-28 08:42:03,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 08:42:03" (1/1) ... [2021-12-28 08:42:03,852 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 08:42:03,862 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 08:42:04,008 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 08:42:04,012 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 08:42:04,025 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 08:42:04,035 INFO L208 MainTranslator]: Completed translation [2021-12-28 08:42:04,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:42:04 WrapperNode [2021-12-28 08:42:04,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 08:42:04,038 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 08:42:04,038 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 08:42:04,038 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 08:42:04,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:42:04" (1/1) ... [2021-12-28 08:42:04,048 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:42:04" (1/1) ... [2021-12-28 08:42:04,098 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2021-12-28 08:42:04,099 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 08:42:04,100 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 08:42:04,100 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 08:42:04,100 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 08:42:04,106 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:42:04" (1/1) ... [2021-12-28 08:42:04,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:42:04" (1/1) ... [2021-12-28 08:42:04,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:42:04" (1/1) ... [2021-12-28 08:42:04,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:42:04" (1/1) ... [2021-12-28 08:42:04,110 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:42:04" (1/1) ... [2021-12-28 08:42:04,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:42:04" (1/1) ... [2021-12-28 08:42:04,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:42:04" (1/1) ... [2021-12-28 08:42:04,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 08:42:04,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 08:42:04,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 08:42:04,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 08:42:04,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:42:04" (1/1) ... [2021-12-28 08:42:04,127 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 08:42:04,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:42:04,152 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) [2021-12-28 08:42:04,178 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 [2021-12-28 08:42:04,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 08:42:04,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 08:42:04,238 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 08:42:04,240 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 08:42:04,350 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 08:42:04,357 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 08:42:04,357 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-28 08:42:04,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 08:42:04 BoogieIcfgContainer [2021-12-28 08:42:04,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 08:42:04,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 08:42:04,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 08:42:04,363 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 08:42:04,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 08:42:03" (1/3) ... [2021-12-28 08:42:04,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49098185 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 08:42:04, skipping insertion in model container [2021-12-28 08:42:04,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:42:04" (2/3) ... [2021-12-28 08:42:04,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49098185 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 08:42:04, skipping insertion in model container [2021-12-28 08:42:04,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 08:42:04" (3/3) ... [2021-12-28 08:42:04,367 INFO L111 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-easy2-2.c [2021-12-28 08:42:04,372 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 08:42:04,373 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-12-28 08:42:04,422 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 08:42:04,434 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 08:42:04,434 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-12-28 08:42:04,449 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 states have internal predecessors, (20), 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) [2021-12-28 08:42:04,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-12-28 08:42:04,459 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:42:04,459 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-12-28 08:42:04,460 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:42:04,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:42:04,468 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2021-12-28 08:42:04,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:42:04,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118254966] [2021-12-28 08:42:04,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:42:04,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:42:04,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:42:04,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:04,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:42:04,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118254966] [2021-12-28 08:42:04,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118254966] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:42:04,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:42:04,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-28 08:42:04,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608224575] [2021-12-28 08:42:04,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:42:04,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 08:42:04,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:42:04,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 08:42:04,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 08:42:04,660 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 states have internal predecessors, (20), 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) [2021-12-28 08:42:04,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:42:04,709 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2021-12-28 08:42:04,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 08:42:04,712 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 [2021-12-28 08:42:04,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:42:04,718 INFO L225 Difference]: With dead ends: 31 [2021-12-28 08:42:04,719 INFO L226 Difference]: Without dead ends: 18 [2021-12-28 08:42:04,721 INFO L932 BasicCegarLoop]: 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 [2021-12-28 08:42:04,724 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 6 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:42:04,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 30 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:42:04,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-12-28 08:42:04,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2021-12-28 08:42:04,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 16 states have internal predecessors, (17), 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) [2021-12-28 08:42:04,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2021-12-28 08:42:04,786 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 4 [2021-12-28 08:42:04,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:42:04,786 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2021-12-28 08:42:04,787 INFO L471 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) [2021-12-28 08:42:04,787 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2021-12-28 08:42:04,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-12-28 08:42:04,787 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:42:04,788 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-12-28 08:42:04,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 08:42:04,788 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:42:04,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:42:04,789 INFO L85 PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times [2021-12-28 08:42:04,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:42:04,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594135430] [2021-12-28 08:42:04,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:42:04,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:42:04,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:42:04,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:04,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:42:04,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594135430] [2021-12-28 08:42:04,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594135430] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:42:04,823 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:42:04,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-28 08:42:04,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954891594] [2021-12-28 08:42:04,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:42:04,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 08:42:04,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:42:04,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 08:42:04,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 08:42:04,826 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:42:04,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:42:04,837 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2021-12-28 08:42:04,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 08:42:04,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-12-28 08:42:04,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:42:04,839 INFO L225 Difference]: With dead ends: 17 [2021-12-28 08:42:04,839 INFO L226 Difference]: Without dead ends: 16 [2021-12-28 08:42:04,839 INFO L932 BasicCegarLoop]: 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 [2021-12-28 08:42:04,841 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:42:04,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 12 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:42:04,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-12-28 08:42:04,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-12-28 08:42:04,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 15 states have internal predecessors, (16), 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) [2021-12-28 08:42:04,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-12-28 08:42:04,859 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 5 [2021-12-28 08:42:04,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:42:04,860 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-12-28 08:42:04,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:42:04,860 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-12-28 08:42:04,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-28 08:42:04,860 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:42:04,861 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-28 08:42:04,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 08:42:04,861 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:42:04,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:42:04,862 INFO L85 PathProgramCache]: Analyzing trace with hash 889691398, now seen corresponding path program 1 times [2021-12-28 08:42:04,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:42:04,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360410466] [2021-12-28 08:42:04,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:42:04,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:42:04,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:42:04,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:04,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:42:04,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360410466] [2021-12-28 08:42:04,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360410466] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:42:04,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:42:04,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-28 08:42:04,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062742477] [2021-12-28 08:42:04,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:42:04,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 08:42:04,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:42:04,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 08:42:04,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 08:42:04,924 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-12-28 08:42:04,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:42:04,938 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-12-28 08:42:04,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 08:42:04,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2021-12-28 08:42:04,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:42:04,939 INFO L225 Difference]: With dead ends: 16 [2021-12-28 08:42:04,940 INFO L226 Difference]: Without dead ends: 15 [2021-12-28 08:42:04,940 INFO L932 BasicCegarLoop]: 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 [2021-12-28 08:42:04,942 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 7 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:42:04,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 11 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:42:04,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-12-28 08:42:04,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-12-28 08:42:04,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 14 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) [2021-12-28 08:42:04,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-12-28 08:42:04,951 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 6 [2021-12-28 08:42:04,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:42:04,952 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-12-28 08:42:04,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-12-28 08:42:04,953 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-12-28 08:42:04,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-28 08:42:04,954 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:42:04,954 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:42:04,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 08:42:04,955 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:42:04,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:42:04,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629611, now seen corresponding path program 1 times [2021-12-28 08:42:04,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:42:04,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579860689] [2021-12-28 08:42:04,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:42:04,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:42:04,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:42:04,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:04,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:42:04,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579860689] [2021-12-28 08:42:04,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579860689] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:42:04,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:42:04,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-28 08:42:04,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978234811] [2021-12-28 08:42:04,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:42:04,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 08:42:04,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:42:04,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 08:42:04,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 08:42:04,991 INFO L87 Difference]: Start difference. First operand 15 states and 15 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) [2021-12-28 08:42:05,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:42:05,009 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2021-12-28 08:42:05,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 08:42:05,010 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 [2021-12-28 08:42:05,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:42:05,012 INFO L225 Difference]: With dead ends: 19 [2021-12-28 08:42:05,012 INFO L226 Difference]: Without dead ends: 18 [2021-12-28 08:42:05,013 INFO L932 BasicCegarLoop]: 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 [2021-12-28 08:42:05,015 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:42:05,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:42:05,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-12-28 08:42:05,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-12-28 08:42:05,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 17 states have internal predecessors, (18), 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) [2021-12-28 08:42:05,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-12-28 08:42:05,023 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 7 [2021-12-28 08:42:05,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:42:05,024 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2021-12-28 08:42:05,024 INFO L471 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) [2021-12-28 08:42:05,024 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-12-28 08:42:05,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-28 08:42:05,025 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:42:05,025 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:42:05,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 08:42:05,025 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:42:05,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:42:05,027 INFO L85 PathProgramCache]: Analyzing trace with hash 294943144, now seen corresponding path program 1 times [2021-12-28 08:42:05,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:42:05,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092413229] [2021-12-28 08:42:05,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:42:05,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:42:05,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:42:05,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:05,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:42:05,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092413229] [2021-12-28 08:42:05,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092413229] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:42:05,065 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:42:05,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-28 08:42:05,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434706690] [2021-12-28 08:42:05,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:42:05,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 08:42:05,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:42:05,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 08:42:05,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 08:42:05,069 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:42:05,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:42:05,082 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-12-28 08:42:05,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 08:42:05,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-12-28 08:42:05,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:42:05,085 INFO L225 Difference]: With dead ends: 18 [2021-12-28 08:42:05,085 INFO L226 Difference]: Without dead ends: 17 [2021-12-28 08:42:05,085 INFO L932 BasicCegarLoop]: 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 [2021-12-28 08:42:05,089 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:42:05,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 9 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:42:05,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-12-28 08:42:05,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-12-28 08:42:05,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 16 states have internal predecessors, (17), 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) [2021-12-28 08:42:05,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2021-12-28 08:42:05,097 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 8 [2021-12-28 08:42:05,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:42:05,098 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2021-12-28 08:42:05,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:42:05,098 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2021-12-28 08:42:05,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-28 08:42:05,099 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:42:05,099 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:42:05,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 08:42:05,100 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:42:05,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:42:05,101 INFO L85 PathProgramCache]: Analyzing trace with hash 553302925, now seen corresponding path program 1 times [2021-12-28 08:42:05,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:42:05,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871178193] [2021-12-28 08:42:05,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:42:05,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:42:05,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:42:05,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:05,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:42:05,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871178193] [2021-12-28 08:42:05,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871178193] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:42:05,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:42:05,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-28 08:42:05,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290833239] [2021-12-28 08:42:05,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:42:05,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 08:42:05,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:42:05,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 08:42:05,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 08:42:05,132 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:42:05,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:42:05,138 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2021-12-28 08:42:05,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 08:42:05,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-28 08:42:05,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:42:05,139 INFO L225 Difference]: With dead ends: 17 [2021-12-28 08:42:05,139 INFO L226 Difference]: Without dead ends: 16 [2021-12-28 08:42:05,139 INFO L932 BasicCegarLoop]: 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 [2021-12-28 08:42:05,140 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 2 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:42:05,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 10 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:42:05,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-12-28 08:42:05,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-12-28 08:42:05,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 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) [2021-12-28 08:42:05,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-12-28 08:42:05,143 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 9 [2021-12-28 08:42:05,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:42:05,144 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-12-28 08:42:05,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:42:05,144 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-12-28 08:42:05,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-28 08:42:05,144 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:42:05,145 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:42:05,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 08:42:05,145 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:42:05,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:42:05,145 INFO L85 PathProgramCache]: Analyzing trace with hash -851832465, now seen corresponding path program 1 times [2021-12-28 08:42:05,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:42:05,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90900136] [2021-12-28 08:42:05,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:42:05,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:42:05,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:42:05,171 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:05,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:42:05,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90900136] [2021-12-28 08:42:05,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90900136] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:42:05,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585947644] [2021-12-28 08:42:05,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:42:05,172 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:42:05,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:42:05,174 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) [2021-12-28 08:42:05,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-28 08:42:05,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:42:05,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-28 08:42:05,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:42:05,254 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:05,254 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:42:05,293 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:05,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585947644] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:42:05,293 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:42:05,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2021-12-28 08:42:05,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310203218] [2021-12-28 08:42:05,294 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:42:05,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 08:42:05,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:42:05,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 08:42:05,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-28 08:42:05,295 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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) [2021-12-28 08:42:05,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:42:05,316 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2021-12-28 08:42:05,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 08:42:05,317 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-28 08:42:05,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:42:05,318 INFO L225 Difference]: With dead ends: 37 [2021-12-28 08:42:05,318 INFO L226 Difference]: Without dead ends: 36 [2021-12-28 08:42:05,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-28 08:42:05,319 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 16 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:42:05,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 36 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:42:05,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-12-28 08:42:05,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2021-12-28 08:42:05,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 32 states have (on average 1.125) internal successors, (36), 33 states have internal predecessors, (36), 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) [2021-12-28 08:42:05,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2021-12-28 08:42:05,324 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 11 [2021-12-28 08:42:05,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:42:05,324 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2021-12-28 08:42:05,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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) [2021-12-28 08:42:05,325 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2021-12-28 08:42:05,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-28 08:42:05,325 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:42:05,325 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-12-28 08:42:05,351 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-28 08:42:05,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:42:05,548 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:42:05,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:42:05,548 INFO L85 PathProgramCache]: Analyzing trace with hash 2020832000, now seen corresponding path program 1 times [2021-12-28 08:42:05,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:42:05,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860480767] [2021-12-28 08:42:05,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:42:05,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:42:05,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:42:05,591 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:05,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:42:05,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860480767] [2021-12-28 08:42:05,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860480767] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:42:05,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337662323] [2021-12-28 08:42:05,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:42:05,592 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:42:05,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:42:05,593 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) [2021-12-28 08:42:05,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-28 08:42:05,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:42:05,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-28 08:42:05,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:42:05,665 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:05,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:42:05,707 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:05,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337662323] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:42:05,708 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:42:05,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2021-12-28 08:42:05,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996934186] [2021-12-28 08:42:05,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:42:05,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 08:42:05,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:42:05,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 08:42:05,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-28 08:42:05,710 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 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) [2021-12-28 08:42:05,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:42:05,729 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2021-12-28 08:42:05,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 08:42:05,730 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 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 14 [2021-12-28 08:42:05,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:42:05,731 INFO L225 Difference]: With dead ends: 38 [2021-12-28 08:42:05,731 INFO L226 Difference]: Without dead ends: 37 [2021-12-28 08:42:05,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-28 08:42:05,732 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:42:05,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 33 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:42:05,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-12-28 08:42:05,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-12-28 08:42:05,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 36 states have internal predecessors, (37), 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) [2021-12-28 08:42:05,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2021-12-28 08:42:05,738 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 14 [2021-12-28 08:42:05,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:42:05,738 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2021-12-28 08:42:05,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 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) [2021-12-28 08:42:05,739 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2021-12-28 08:42:05,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-28 08:42:05,740 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:42:05,740 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2021-12-28 08:42:05,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-28 08:42:05,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-12-28 08:42:05,956 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:42:05,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:42:05,956 INFO L85 PathProgramCache]: Analyzing trace with hash 85812132, now seen corresponding path program 2 times [2021-12-28 08:42:05,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:42:05,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417353313] [2021-12-28 08:42:05,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:42:05,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:42:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:42:06,037 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:06,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:42:06,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417353313] [2021-12-28 08:42:06,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417353313] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:42:06,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969090270] [2021-12-28 08:42:06,038 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-28 08:42:06,039 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:42:06,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:42:06,040 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) [2021-12-28 08:42:06,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-28 08:42:06,071 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-28 08:42:06,071 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:42:06,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-28 08:42:06,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:42:06,141 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:06,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:42:06,254 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:06,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969090270] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:42:06,254 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:42:06,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2021-12-28 08:42:06,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660632301] [2021-12-28 08:42:06,255 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:42:06,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 08:42:06,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:42:06,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 08:42:06,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-12-28 08:42:06,256 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 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) [2021-12-28 08:42:06,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:42:06,293 INFO L93 Difference]: Finished difference Result 82 states and 87 transitions. [2021-12-28 08:42:06,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-28 08:42:06,293 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 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 32 [2021-12-28 08:42:06,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:42:06,295 INFO L225 Difference]: With dead ends: 82 [2021-12-28 08:42:06,295 INFO L226 Difference]: Without dead ends: 81 [2021-12-28 08:42:06,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-12-28 08:42:06,296 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 36 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:42:06,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 70 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:42:06,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-12-28 08:42:06,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 76. [2021-12-28 08:42:06,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 74 states have (on average 1.0945945945945945) internal successors, (81), 75 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:42:06,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 81 transitions. [2021-12-28 08:42:06,304 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 81 transitions. Word has length 32 [2021-12-28 08:42:06,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:42:06,304 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 81 transitions. [2021-12-28 08:42:06,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 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) [2021-12-28 08:42:06,304 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 81 transitions. [2021-12-28 08:42:06,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-28 08:42:06,305 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:42:06,305 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 1, 1, 1] [2021-12-28 08:42:06,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-28 08:42:06,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:42:06,532 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:42:06,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:42:06,532 INFO L85 PathProgramCache]: Analyzing trace with hash 923728043, now seen corresponding path program 2 times [2021-12-28 08:42:06,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:42:06,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106885910] [2021-12-28 08:42:06,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:42:06,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:42:06,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:42:06,595 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:06,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:42:06,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106885910] [2021-12-28 08:42:06,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106885910] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:42:06,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449321878] [2021-12-28 08:42:06,596 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-28 08:42:06,596 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:42:06,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:42:06,597 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) [2021-12-28 08:42:06,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-28 08:42:06,625 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-28 08:42:06,626 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:42:06,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-28 08:42:06,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:42:06,706 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:06,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:42:06,831 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:06,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449321878] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:42:06,832 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:42:06,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2021-12-28 08:42:06,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738682357] [2021-12-28 08:42:06,833 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:42:06,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 08:42:06,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:42:06,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 08:42:06,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-12-28 08:42:06,835 INFO L87 Difference]: Start difference. First operand 76 states and 81 transitions. Second operand has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 12 states have internal predecessors, (69), 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) [2021-12-28 08:42:06,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:42:06,876 INFO L93 Difference]: Finished difference Result 80 states and 85 transitions. [2021-12-28 08:42:06,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-28 08:42:06,877 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 12 states have internal predecessors, (69), 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 35 [2021-12-28 08:42:06,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:42:06,877 INFO L225 Difference]: With dead ends: 80 [2021-12-28 08:42:06,878 INFO L226 Difference]: Without dead ends: 79 [2021-12-28 08:42:06,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-12-28 08:42:06,879 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 10 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:42:06,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 67 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:42:06,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-12-28 08:42:06,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2021-12-28 08:42:06,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 77 states have (on average 1.025974025974026) internal successors, (79), 78 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:42:06,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 79 transitions. [2021-12-28 08:42:06,887 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 79 transitions. Word has length 35 [2021-12-28 08:42:06,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:42:06,888 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 79 transitions. [2021-12-28 08:42:06,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 12 states have internal predecessors, (69), 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) [2021-12-28 08:42:06,888 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 79 transitions. [2021-12-28 08:42:06,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-28 08:42:06,889 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:42:06,890 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 1, 1, 1] [2021-12-28 08:42:06,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-28 08:42:07,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:42:07,114 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:42:07,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:42:07,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1891218564, now seen corresponding path program 3 times [2021-12-28 08:42:07,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:42:07,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008360765] [2021-12-28 08:42:07,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:42:07,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:42:07,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:42:07,313 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:07,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:42:07,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008360765] [2021-12-28 08:42:07,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008360765] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:42:07,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691885871] [2021-12-28 08:42:07,314 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-28 08:42:07,314 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:42:07,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:42:07,320 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) [2021-12-28 08:42:07,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-28 08:42:07,365 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-12-28 08:42:07,365 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:42:07,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-28 08:42:07,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:42:07,539 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:07,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:42:07,856 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:07,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691885871] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:42:07,857 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:42:07,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2021-12-28 08:42:07,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323994545] [2021-12-28 08:42:07,859 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:42:07,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-28 08:42:07,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:42:07,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-28 08:42:07,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-12-28 08:42:07,861 INFO L87 Difference]: Start difference. First operand 79 states and 79 transitions. Second operand has 24 states, 23 states have (on average 6.391304347826087) internal successors, (147), 24 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) [2021-12-28 08:42:07,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:42:07,957 INFO L93 Difference]: Finished difference Result 172 states and 183 transitions. [2021-12-28 08:42:07,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-28 08:42:07,958 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.391304347826087) internal successors, (147), 24 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 74 [2021-12-28 08:42:07,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:42:07,960 INFO L225 Difference]: With dead ends: 172 [2021-12-28 08:42:07,960 INFO L226 Difference]: Without dead ends: 171 [2021-12-28 08:42:07,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-12-28 08:42:07,961 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 95 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:42:07,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 139 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:42:07,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2021-12-28 08:42:07,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 160. [2021-12-28 08:42:07,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 158 states have (on average 1.0822784810126582) internal successors, (171), 159 states have internal predecessors, (171), 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) [2021-12-28 08:42:07,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 171 transitions. [2021-12-28 08:42:07,985 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 171 transitions. Word has length 74 [2021-12-28 08:42:07,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:42:07,985 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 171 transitions. [2021-12-28 08:42:07,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.391304347826087) internal successors, (147), 24 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) [2021-12-28 08:42:07,985 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 171 transitions. [2021-12-28 08:42:07,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-28 08:42:07,987 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:42:07,987 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 1, 1, 1] [2021-12-28 08:42:08,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-28 08:42:08,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-28 08:42:08,209 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:42:08,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:42:08,209 INFO L85 PathProgramCache]: Analyzing trace with hash -88704053, now seen corresponding path program 3 times [2021-12-28 08:42:08,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:42:08,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840554563] [2021-12-28 08:42:08,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:42:08,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:42:08,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:42:08,342 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:08,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:42:08,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840554563] [2021-12-28 08:42:08,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840554563] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:42:08,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558601181] [2021-12-28 08:42:08,343 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-28 08:42:08,343 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:42:08,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:42:08,348 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) [2021-12-28 08:42:08,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-28 08:42:08,404 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-12-28 08:42:08,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:42:08,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-28 08:42:08,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:42:08,570 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:08,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:42:08,871 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:08,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558601181] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:42:08,872 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:42:08,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2021-12-28 08:42:08,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310724704] [2021-12-28 08:42:08,873 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:42:08,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-28 08:42:08,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:42:08,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-28 08:42:08,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-12-28 08:42:08,874 INFO L87 Difference]: Start difference. First operand 160 states and 171 transitions. Second operand has 24 states, 23 states have (on average 6.6521739130434785) internal successors, (153), 24 states have internal predecessors, (153), 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) [2021-12-28 08:42:08,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:42:08,935 INFO L93 Difference]: Finished difference Result 164 states and 175 transitions. [2021-12-28 08:42:08,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-28 08:42:08,935 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.6521739130434785) internal successors, (153), 24 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-12-28 08:42:08,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:42:08,937 INFO L225 Difference]: With dead ends: 164 [2021-12-28 08:42:08,937 INFO L226 Difference]: Without dead ends: 163 [2021-12-28 08:42:08,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-12-28 08:42:08,938 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 22 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:42:08,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 127 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:42:08,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-12-28 08:42:08,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2021-12-28 08:42:08,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 161 states have (on average 1.0124223602484472) internal successors, (163), 162 states have internal predecessors, (163), 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) [2021-12-28 08:42:08,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 163 transitions. [2021-12-28 08:42:08,964 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 163 transitions. Word has length 77 [2021-12-28 08:42:08,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:42:08,964 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 163 transitions. [2021-12-28 08:42:08,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.6521739130434785) internal successors, (153), 24 states have internal predecessors, (153), 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) [2021-12-28 08:42:08,964 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 163 transitions. [2021-12-28 08:42:08,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-12-28 08:42:08,966 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:42:08,966 INFO L514 BasicCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 1, 1, 1] [2021-12-28 08:42:08,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-28 08:42:09,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:42:09,167 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:42:09,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:42:09,168 INFO L85 PathProgramCache]: Analyzing trace with hash 468127300, now seen corresponding path program 4 times [2021-12-28 08:42:09,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:42:09,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78091167] [2021-12-28 08:42:09,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:42:09,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:42:09,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:42:09,517 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 0 proven. 1661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:09,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:42:09,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78091167] [2021-12-28 08:42:09,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78091167] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:42:09,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752417479] [2021-12-28 08:42:09,519 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-28 08:42:09,519 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:42:09,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:42:09,528 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) [2021-12-28 08:42:09,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-28 08:42:09,586 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-28 08:42:09,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:42:09,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-28 08:42:09,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:42:09,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 0 proven. 1661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:09,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:42:10,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 0 proven. 1661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:10,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752417479] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:42:10,776 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:42:10,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2021-12-28 08:42:10,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601678594] [2021-12-28 08:42:10,777 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:42:10,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-12-28 08:42:10,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:42:10,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-12-28 08:42:10,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-12-28 08:42:10,783 INFO L87 Difference]: Start difference. First operand 163 states and 163 transitions. Second operand has 48 states, 47 states have (on average 6.702127659574468) internal successors, (315), 48 states have internal predecessors, (315), 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) [2021-12-28 08:42:10,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:42:10,918 INFO L93 Difference]: Finished difference Result 352 states and 375 transitions. [2021-12-28 08:42:10,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-12-28 08:42:10,919 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.702127659574468) internal successors, (315), 48 states have internal predecessors, (315), 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 158 [2021-12-28 08:42:10,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:42:10,921 INFO L225 Difference]: With dead ends: 352 [2021-12-28 08:42:10,921 INFO L226 Difference]: Without dead ends: 351 [2021-12-28 08:42:10,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-12-28 08:42:10,922 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 188 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:42:10,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 271 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:42:10,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2021-12-28 08:42:10,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 328. [2021-12-28 08:42:10,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 326 states have (on average 1.0766871165644172) internal successors, (351), 327 states have internal predecessors, (351), 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) [2021-12-28 08:42:10,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 351 transitions. [2021-12-28 08:42:10,933 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 351 transitions. Word has length 158 [2021-12-28 08:42:10,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:42:10,934 INFO L470 AbstractCegarLoop]: Abstraction has 328 states and 351 transitions. [2021-12-28 08:42:10,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.702127659574468) internal successors, (315), 48 states have internal predecessors, (315), 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) [2021-12-28 08:42:10,934 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 351 transitions. [2021-12-28 08:42:10,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-28 08:42:10,936 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:42:10,936 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 22, 22, 22, 1, 1, 1] [2021-12-28 08:42:10,960 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-28 08:42:11,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:42:11,160 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:42:11,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:42:11,160 INFO L85 PathProgramCache]: Analyzing trace with hash 221628939, now seen corresponding path program 4 times [2021-12-28 08:42:11,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:42:11,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836977958] [2021-12-28 08:42:11,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:42:11,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:42:11,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:42:11,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:11,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:42:11,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836977958] [2021-12-28 08:42:11,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836977958] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:42:11,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776674626] [2021-12-28 08:42:11,517 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-28 08:42:11,517 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:42:11,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:42:11,519 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) [2021-12-28 08:42:11,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-28 08:42:11,579 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-28 08:42:11,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:42:11,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-28 08:42:11,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:42:11,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:11,888 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:42:12,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:12,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776674626] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:42:12,821 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:42:12,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2021-12-28 08:42:12,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743951298] [2021-12-28 08:42:12,821 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:42:12,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-12-28 08:42:12,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:42:12,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-12-28 08:42:12,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-12-28 08:42:12,823 INFO L87 Difference]: Start difference. First operand 328 states and 351 transitions. Second operand has 48 states, 47 states have (on average 6.829787234042553) internal successors, (321), 48 states have internal predecessors, (321), 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) [2021-12-28 08:42:12,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:42:12,959 INFO L93 Difference]: Finished difference Result 332 states and 355 transitions. [2021-12-28 08:42:12,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-12-28 08:42:12,961 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.829787234042553) internal successors, (321), 48 states have internal predecessors, (321), 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 161 [2021-12-28 08:42:12,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:42:12,963 INFO L225 Difference]: With dead ends: 332 [2021-12-28 08:42:12,963 INFO L226 Difference]: Without dead ends: 331 [2021-12-28 08:42:12,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-12-28 08:42:12,964 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 46 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:42:12,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 245 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:42:12,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2021-12-28 08:42:12,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 331. [2021-12-28 08:42:12,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 329 states have (on average 1.006079027355623) internal successors, (331), 330 states have internal predecessors, (331), 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) [2021-12-28 08:42:12,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 331 transitions. [2021-12-28 08:42:12,973 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 331 transitions. Word has length 161 [2021-12-28 08:42:12,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:42:12,973 INFO L470 AbstractCegarLoop]: Abstraction has 331 states and 331 transitions. [2021-12-28 08:42:12,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.829787234042553) internal successors, (321), 48 states have internal predecessors, (321), 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) [2021-12-28 08:42:12,974 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 331 transitions. [2021-12-28 08:42:12,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2021-12-28 08:42:12,977 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:42:12,977 INFO L514 BasicCegarLoop]: trace histogram [47, 46, 46, 46, 46, 46, 46, 1, 1, 1] [2021-12-28 08:42:13,006 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-28 08:42:13,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-12-28 08:42:13,197 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:42:13,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:42:13,198 INFO L85 PathProgramCache]: Analyzing trace with hash -136535612, now seen corresponding path program 5 times [2021-12-28 08:42:13,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:42:13,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248261554] [2021-12-28 08:42:13,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:42:13,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:42:13,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:42:14,284 INFO L134 CoverageAnalysis]: Checked inductivity of 7337 backedges. 0 proven. 7337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:14,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:42:14,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248261554] [2021-12-28 08:42:14,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248261554] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:42:14,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148991456] [2021-12-28 08:42:14,285 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-28 08:42:14,285 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:42:14,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:42:14,286 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) [2021-12-28 08:42:14,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-28 08:42:14,418 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2021-12-28 08:42:14,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:42:14,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 48 conjunts are in the unsatisfiable core [2021-12-28 08:42:14,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:42:15,032 INFO L134 CoverageAnalysis]: Checked inductivity of 7337 backedges. 0 proven. 7337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:15,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:42:17,668 INFO L134 CoverageAnalysis]: Checked inductivity of 7337 backedges. 0 proven. 7337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:17,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [148991456] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:42:17,668 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:42:17,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2021-12-28 08:42:17,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934725056] [2021-12-28 08:42:17,668 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:42:17,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2021-12-28 08:42:17,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:42:17,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2021-12-28 08:42:17,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2021-12-28 08:42:17,678 INFO L87 Difference]: Start difference. First operand 331 states and 331 transitions. Second operand has 96 states, 95 states have (on average 6.852631578947369) internal successors, (651), 96 states have internal predecessors, (651), 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) [2021-12-28 08:42:18,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:42:18,008 INFO L93 Difference]: Finished difference Result 712 states and 759 transitions. [2021-12-28 08:42:18,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-12-28 08:42:18,009 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 6.852631578947369) internal successors, (651), 96 states have internal predecessors, (651), 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 326 [2021-12-28 08:42:18,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:42:18,011 INFO L225 Difference]: With dead ends: 712 [2021-12-28 08:42:18,012 INFO L226 Difference]: Without dead ends: 711 [2021-12-28 08:42:18,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 698 GetRequests, 604 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2021-12-28 08:42:18,016 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 466 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-28 08:42:18,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [466 Valid, 540 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-28 08:42:18,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2021-12-28 08:42:18,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 664. [2021-12-28 08:42:18,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 662 states have (on average 1.0740181268882176) internal successors, (711), 663 states have internal predecessors, (711), 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) [2021-12-28 08:42:18,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 711 transitions. [2021-12-28 08:42:18,031 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 711 transitions. Word has length 326 [2021-12-28 08:42:18,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:42:18,032 INFO L470 AbstractCegarLoop]: Abstraction has 664 states and 711 transitions. [2021-12-28 08:42:18,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 6.852631578947369) internal successors, (651), 96 states have internal predecessors, (651), 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) [2021-12-28 08:42:18,033 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 711 transitions. [2021-12-28 08:42:18,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2021-12-28 08:42:18,036 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:42:18,036 INFO L514 BasicCegarLoop]: trace histogram [47, 47, 47, 47, 46, 46, 46, 1, 1, 1] [2021-12-28 08:42:18,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-28 08:42:18,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-12-28 08:42:18,258 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:42:18,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:42:18,259 INFO L85 PathProgramCache]: Analyzing trace with hash -198343029, now seen corresponding path program 5 times [2021-12-28 08:42:18,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:42:18,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549069868] [2021-12-28 08:42:18,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:42:18,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:42:18,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:42:19,251 INFO L134 CoverageAnalysis]: Checked inductivity of 7475 backedges. 0 proven. 7475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:19,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:42:19,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549069868] [2021-12-28 08:42:19,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549069868] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:42:19,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878165361] [2021-12-28 08:42:19,252 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-28 08:42:19,252 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:42:19,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:42:19,254 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:42:19,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-28 08:42:19,377 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2021-12-28 08:42:19,377 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:42:19,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 48 conjunts are in the unsatisfiable core [2021-12-28 08:42:19,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:42:19,983 INFO L134 CoverageAnalysis]: Checked inductivity of 7475 backedges. 0 proven. 7475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:19,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:42:22,628 INFO L134 CoverageAnalysis]: Checked inductivity of 7475 backedges. 0 proven. 7475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:22,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878165361] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:42:22,628 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:42:22,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2021-12-28 08:42:22,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973335520] [2021-12-28 08:42:22,629 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:42:22,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2021-12-28 08:42:22,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:42:22,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2021-12-28 08:42:22,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2021-12-28 08:42:22,633 INFO L87 Difference]: Start difference. First operand 664 states and 711 transitions. Second operand has 96 states, 95 states have (on average 6.91578947368421) internal successors, (657), 96 states have internal predecessors, (657), 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) [2021-12-28 08:42:22,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:42:22,988 INFO L93 Difference]: Finished difference Result 668 states and 715 transitions. [2021-12-28 08:42:22,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-12-28 08:42:22,989 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 6.91578947368421) internal successors, (657), 96 states have internal predecessors, (657), 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 329 [2021-12-28 08:42:22,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:42:22,992 INFO L225 Difference]: With dead ends: 668 [2021-12-28 08:42:22,992 INFO L226 Difference]: Without dead ends: 667 [2021-12-28 08:42:22,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 704 GetRequests, 610 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2021-12-28 08:42:22,995 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 94 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-28 08:42:22,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 489 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-28 08:42:22,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2021-12-28 08:42:23,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 667. [2021-12-28 08:42:23,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 665 states have (on average 1.0030075187969925) internal successors, (667), 666 states have internal predecessors, (667), 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) [2021-12-28 08:42:23,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 667 transitions. [2021-12-28 08:42:23,011 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 667 transitions. Word has length 329 [2021-12-28 08:42:23,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:42:23,012 INFO L470 AbstractCegarLoop]: Abstraction has 667 states and 667 transitions. [2021-12-28 08:42:23,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 6.91578947368421) internal successors, (657), 96 states have internal predecessors, (657), 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) [2021-12-28 08:42:23,012 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 667 transitions. [2021-12-28 08:42:23,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2021-12-28 08:42:23,024 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:42:23,025 INFO L514 BasicCegarLoop]: trace histogram [95, 94, 94, 94, 94, 94, 94, 1, 1, 1] [2021-12-28 08:42:23,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-28 08:42:23,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-12-28 08:42:23,245 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:42:23,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:42:23,246 INFO L85 PathProgramCache]: Analyzing trace with hash -395097916, now seen corresponding path program 6 times [2021-12-28 08:42:23,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:42:23,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707447507] [2021-12-28 08:42:23,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:42:23,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:42:23,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:42:26,452 INFO L134 CoverageAnalysis]: Checked inductivity of 30785 backedges. 0 proven. 30785 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:26,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:42:26,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707447507] [2021-12-28 08:42:26,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707447507] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:42:26,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795232804] [2021-12-28 08:42:26,453 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-28 08:42:26,453 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:42:26,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:42:26,455 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:42:26,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-28 08:42:26,720 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2021-12-28 08:42:26,720 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:42:26,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 96 conjunts are in the unsatisfiable core [2021-12-28 08:42:26,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:42:27,738 INFO L134 CoverageAnalysis]: Checked inductivity of 30785 backedges. 0 proven. 30785 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:27,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:42:36,609 INFO L134 CoverageAnalysis]: Checked inductivity of 30785 backedges. 0 proven. 30785 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:36,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795232804] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:42:36,610 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:42:36,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2021-12-28 08:42:36,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949168677] [2021-12-28 08:42:36,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:42:36,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2021-12-28 08:42:36,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:42:36,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2021-12-28 08:42:36,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2021-12-28 08:42:36,622 INFO L87 Difference]: Start difference. First operand 667 states and 667 transitions. Second operand has 192 states, 191 states have (on average 6.9267015706806285) internal successors, (1323), 192 states have internal predecessors, (1323), 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) [2021-12-28 08:42:38,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:42:38,354 INFO L93 Difference]: Finished difference Result 1432 states and 1527 transitions. [2021-12-28 08:42:38,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2021-12-28 08:42:38,355 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 6.9267015706806285) internal successors, (1323), 192 states have internal predecessors, (1323), 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 662 [2021-12-28 08:42:38,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:42:38,360 INFO L225 Difference]: With dead ends: 1432 [2021-12-28 08:42:38,360 INFO L226 Difference]: Without dead ends: 1431 [2021-12-28 08:42:38,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1418 GetRequests, 1228 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2021-12-28 08:42:38,364 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 1026 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-28 08:42:38,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1026 Valid, 1065 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-28 08:42:38,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1431 states. [2021-12-28 08:42:38,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1431 to 1336. [2021-12-28 08:42:38,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1334 states have (on average 1.0727136431784108) internal successors, (1431), 1335 states have internal predecessors, (1431), 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) [2021-12-28 08:42:38,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1431 transitions. [2021-12-28 08:42:38,391 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1431 transitions. Word has length 662 [2021-12-28 08:42:38,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:42:38,392 INFO L470 AbstractCegarLoop]: Abstraction has 1336 states and 1431 transitions. [2021-12-28 08:42:38,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 6.9267015706806285) internal successors, (1323), 192 states have internal predecessors, (1323), 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) [2021-12-28 08:42:38,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1431 transitions. [2021-12-28 08:42:38,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2021-12-28 08:42:38,397 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:42:38,397 INFO L514 BasicCegarLoop]: trace histogram [95, 95, 95, 95, 94, 94, 94, 1, 1, 1] [2021-12-28 08:42:38,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-12-28 08:42:38,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-12-28 08:42:38,611 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:42:38,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:42:38,612 INFO L85 PathProgramCache]: Analyzing trace with hash 2143387531, now seen corresponding path program 6 times [2021-12-28 08:42:38,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:42:38,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397007208] [2021-12-28 08:42:38,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:42:38,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:42:38,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:42:41,739 INFO L134 CoverageAnalysis]: Checked inductivity of 31067 backedges. 0 proven. 31067 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:41,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:42:41,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397007208] [2021-12-28 08:42:41,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397007208] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:42:41,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582732800] [2021-12-28 08:42:41,739 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-28 08:42:41,739 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:42:41,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:42:41,741 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:42:41,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-28 08:42:41,994 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2021-12-28 08:42:41,994 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:42:41,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 1238 conjuncts, 96 conjunts are in the unsatisfiable core [2021-12-28 08:42:42,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:42:43,099 INFO L134 CoverageAnalysis]: Checked inductivity of 31067 backedges. 0 proven. 31067 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:43,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:42:52,319 INFO L134 CoverageAnalysis]: Checked inductivity of 31067 backedges. 0 proven. 31067 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:52,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582732800] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:42:52,320 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:42:52,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2021-12-28 08:42:52,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041947014] [2021-12-28 08:42:52,320 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:42:52,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2021-12-28 08:42:52,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:42:52,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2021-12-28 08:42:52,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2021-12-28 08:42:52,327 INFO L87 Difference]: Start difference. First operand 1336 states and 1431 transitions. Second operand has 192 states, 191 states have (on average 6.958115183246074) internal successors, (1329), 192 states have internal predecessors, (1329), 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) [2021-12-28 08:42:53,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:42:53,617 INFO L93 Difference]: Finished difference Result 1340 states and 1435 transitions. [2021-12-28 08:42:53,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2021-12-28 08:42:53,618 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 6.958115183246074) internal successors, (1329), 192 states have internal predecessors, (1329), 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 665 [2021-12-28 08:42:53,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:42:53,623 INFO L225 Difference]: With dead ends: 1340 [2021-12-28 08:42:53,623 INFO L226 Difference]: Without dead ends: 1339 [2021-12-28 08:42:53,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1424 GetRequests, 1234 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2021-12-28 08:42:53,626 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 190 mSDsluCounter, 964 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-28 08:42:53,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 973 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-28 08:42:53,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1339 states. [2021-12-28 08:42:53,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1339 to 1339. [2021-12-28 08:42:53,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 1337 states have (on average 1.0014958863126402) internal successors, (1339), 1338 states have internal predecessors, (1339), 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) [2021-12-28 08:42:53,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 1339 transitions. [2021-12-28 08:42:53,653 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 1339 transitions. Word has length 665 [2021-12-28 08:42:53,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:42:53,654 INFO L470 AbstractCegarLoop]: Abstraction has 1339 states and 1339 transitions. [2021-12-28 08:42:53,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 6.958115183246074) internal successors, (1329), 192 states have internal predecessors, (1329), 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) [2021-12-28 08:42:53,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 1339 transitions. [2021-12-28 08:42:53,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1335 [2021-12-28 08:42:53,667 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:42:53,667 INFO L514 BasicCegarLoop]: trace histogram [191, 190, 190, 190, 190, 190, 190, 1, 1, 1] [2021-12-28 08:42:53,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-12-28 08:42:53,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-12-28 08:42:53,890 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:42:53,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:42:53,891 INFO L85 PathProgramCache]: Analyzing trace with hash -28404028, now seen corresponding path program 7 times [2021-12-28 08:42:53,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:42:53,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67378302] [2021-12-28 08:42:53,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:42:53,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:42:54,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat