./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random1d-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6c24879c 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-random1d-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 47d7aa734a1bf75c79acf2b3acca3677f12d2522fb1fc624c15ccfe9b5a8438a --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 02:02:48,526 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 02:02:48,528 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 02:02:48,563 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 02:02:48,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 02:02:48,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 02:02:48,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 02:02:48,569 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 02:02:48,571 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 02:02:48,575 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 02:02:48,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 02:02:48,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 02:02:48,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 02:02:48,580 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 02:02:48,581 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 02:02:48,583 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 02:02:48,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 02:02:48,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 02:02:48,588 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 02:02:48,593 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 02:02:48,594 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 02:02:48,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 02:02:48,596 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 02:02:48,597 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 02:02:48,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 02:02:48,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 02:02:48,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 02:02:48,604 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 02:02:48,604 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 02:02:48,605 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 02:02:48,606 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 02:02:48,606 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 02:02:48,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 02:02:48,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 02:02:48,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 02:02:48,610 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 02:02:48,610 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 02:02:48,611 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 02:02:48,611 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 02:02:48,611 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 02:02:48,612 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 02:02:48,613 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 02:02:48,614 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-07-13 02:02:48,644 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 02:02:48,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 02:02:48,645 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 02:02:48,646 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 02:02:48,646 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 02:02:48,646 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 02:02:48,647 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 02:02:48,647 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 02:02:48,647 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 02:02:48,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 02:02:48,648 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 02:02:48,649 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 02:02:48,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 02:02:48,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 02:02:48,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 02:02:48,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 02:02:48,650 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-13 02:02:48,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 02:02:48,650 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 02:02:48,651 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 02:02:48,651 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 02:02:48,652 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 02:02:48,652 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 02:02:48,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:02:48,652 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 02:02:48,652 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 02:02:48,653 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 02:02:48,653 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 02:02:48,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 02:02:48,653 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 02:02:48,653 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47d7aa734a1bf75c79acf2b3acca3677f12d2522fb1fc624c15ccfe9b5a8438a [2022-07-13 02:02:48,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 02:02:48,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 02:02:48,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 02:02:48,871 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 02:02:48,871 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 02:02:48,872 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random1d-2.c [2022-07-13 02:02:48,929 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3f8d7e0f/97273348851c4a44b72c8f7d78ea8bd2/FLAG866769dd8 [2022-07-13 02:02:49,324 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 02:02:49,325 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random1d-2.c [2022-07-13 02:02:49,331 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3f8d7e0f/97273348851c4a44b72c8f7d78ea8bd2/FLAG866769dd8 [2022-07-13 02:02:49,735 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3f8d7e0f/97273348851c4a44b72c8f7d78ea8bd2 [2022-07-13 02:02:49,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 02:02:49,738 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 02:02:49,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 02:02:49,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 02:02:49,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 02:02:49,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:02:49" (1/1) ... [2022-07-13 02:02:49,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65bc0af4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:02:49, skipping insertion in model container [2022-07-13 02:02:49,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:02:49" (1/1) ... [2022-07-13 02:02:49,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 02:02:49,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 02:02:49,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:02:49,909 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 02:02:49,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:02:49,929 INFO L208 MainTranslator]: Completed translation [2022-07-13 02:02:49,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:02:49 WrapperNode [2022-07-13 02:02:49,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 02:02:49,930 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 02:02:49,930 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 02:02:49,930 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 02:02:49,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:02:49" (1/1) ... [2022-07-13 02:02:49,939 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:02:49" (1/1) ... [2022-07-13 02:02:49,951 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2022-07-13 02:02:49,952 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 02:02:49,952 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 02:02:49,953 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 02:02:49,953 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 02:02:49,959 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:02:49" (1/1) ... [2022-07-13 02:02:49,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:02:49" (1/1) ... [2022-07-13 02:02:49,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:02:49" (1/1) ... [2022-07-13 02:02:49,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:02:49" (1/1) ... [2022-07-13 02:02:49,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:02:49" (1/1) ... [2022-07-13 02:02:49,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:02:49" (1/1) ... [2022-07-13 02:02:49,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:02:49" (1/1) ... [2022-07-13 02:02:49,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 02:02:49,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 02:02:49,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 02:02:49,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 02:02:49,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:02:49" (1/1) ... [2022-07-13 02:02:49,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:02:49,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:02:49,997 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 02:02:49,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 02:02:50,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 02:02:50,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 02:02:50,074 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 02:02:50,076 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 02:02:50,146 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 02:02:50,152 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 02:02:50,153 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 02:02:50,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:02:50 BoogieIcfgContainer [2022-07-13 02:02:50,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 02:02:50,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 02:02:50,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 02:02:50,159 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 02:02:50,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:02:49" (1/3) ... [2022-07-13 02:02:50,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@573c808d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:02:50, skipping insertion in model container [2022-07-13 02:02:50,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:02:49" (2/3) ... [2022-07-13 02:02:50,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@573c808d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:02:50, skipping insertion in model container [2022-07-13 02:02:50,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:02:50" (3/3) ... [2022-07-13 02:02:50,161 INFO L111 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-random1d-2.c [2022-07-13 02:02:50,177 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 02:02:50,178 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-13 02:02:50,214 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 02:02:50,220 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2e3fd2e5, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@62ddcc7d [2022-07-13 02:02:50,220 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-07-13 02:02:50,224 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 20 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:50,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-13 02:02:50,231 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:02:50,231 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-13 02:02:50,233 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:02:50,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:02:50,240 INFO L85 PathProgramCache]: Analyzing trace with hash 889513677, now seen corresponding path program 1 times [2022-07-13 02:02:50,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:02:50,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449266994] [2022-07-13 02:02:50,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:02:50,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:02:50,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:02:50,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:02:50,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:02:50,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449266994] [2022-07-13 02:02:50,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449266994] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:02:50,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:02:50,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:02:50,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064894715] [2022-07-13 02:02:50,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:02:50,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:02:50,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:02:50,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:02:50,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:02:50,413 INFO L87 Difference]: Start difference. First operand has 21 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 20 states have internal predecessors, (24), 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 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) [2022-07-13 02:02:50,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:02:50,474 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2022-07-13 02:02:50,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:02:50,477 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 [2022-07-13 02:02:50,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:02:50,483 INFO L225 Difference]: With dead ends: 41 [2022-07-13 02:02:50,483 INFO L226 Difference]: Without dead ends: 27 [2022-07-13 02:02:50,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:02:50,488 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 13 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:02:50,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 37 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:02:50,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-07-13 02:02:50,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2022-07-13 02:02:50,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:50,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2022-07-13 02:02:50,551 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 6 [2022-07-13 02:02:50,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:02:50,552 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2022-07-13 02:02:50,552 INFO L496 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) [2022-07-13 02:02:50,552 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2022-07-13 02:02:50,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-13 02:02:50,553 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:02:50,553 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:02:50,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 02:02:50,554 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:02:50,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:02:50,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1805120262, now seen corresponding path program 1 times [2022-07-13 02:02:50,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:02:50,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135160175] [2022-07-13 02:02:50,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:02:50,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:02:50,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:02:50,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:02:50,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:02:50,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135160175] [2022-07-13 02:02:50,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135160175] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:02:50,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:02:50,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:02:50,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334668544] [2022-07-13 02:02:50,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:02:50,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:02:50,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:02:50,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:02:50,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:02:50,600 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:50,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:02:50,642 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2022-07-13 02:02:50,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:02:50,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-07-13 02:02:50,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:02:50,646 INFO L225 Difference]: With dead ends: 41 [2022-07-13 02:02:50,646 INFO L226 Difference]: Without dead ends: 39 [2022-07-13 02:02:50,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:02:50,649 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 8 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:02:50,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 20 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:02:50,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-07-13 02:02:50,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2022-07-13 02:02:50,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 36 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:50,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2022-07-13 02:02:50,660 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 7 [2022-07-13 02:02:50,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:02:50,661 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2022-07-13 02:02:50,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:50,661 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2022-07-13 02:02:50,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-13 02:02:50,662 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:02:50,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:02:50,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 02:02:50,663 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:02:50,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:02:50,664 INFO L85 PathProgramCache]: Analyzing trace with hash 124153334, now seen corresponding path program 1 times [2022-07-13 02:02:50,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:02:50,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016739526] [2022-07-13 02:02:50,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:02:50,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:02:50,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:02:50,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:02:50,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:02:50,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016739526] [2022-07-13 02:02:50,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016739526] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:02:50,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:02:50,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:02:50,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53835545] [2022-07-13 02:02:50,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:02:50,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:02:50,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:02:50,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:02:50,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:02:50,709 INFO L87 Difference]: Start difference. First operand 37 states and 48 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) [2022-07-13 02:02:50,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:02:50,727 INFO L93 Difference]: Finished difference Result 43 states and 57 transitions. [2022-07-13 02:02:50,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:02:50,728 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 [2022-07-13 02:02:50,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:02:50,732 INFO L225 Difference]: With dead ends: 43 [2022-07-13 02:02:50,732 INFO L226 Difference]: Without dead ends: 42 [2022-07-13 02:02:50,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:02:50,738 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 5 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:02:50,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 25 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:02:50,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-07-13 02:02:50,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2022-07-13 02:02:50,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 34 states have (on average 1.5) internal successors, (51), 39 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:50,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2022-07-13 02:02:50,755 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 8 [2022-07-13 02:02:50,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:02:50,755 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2022-07-13 02:02:50,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:50,756 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2022-07-13 02:02:50,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-13 02:02:50,756 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:02:50,756 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:02:50,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 02:02:50,758 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:02:50,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:02:50,759 INFO L85 PathProgramCache]: Analyzing trace with hash -446213880, now seen corresponding path program 1 times [2022-07-13 02:02:50,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:02:50,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694841764] [2022-07-13 02:02:50,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:02:50,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:02:50,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:02:50,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:02:50,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:02:50,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694841764] [2022-07-13 02:02:50,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694841764] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:02:50,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:02:50,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:02:50,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972533521] [2022-07-13 02:02:50,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:02:50,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:02:50,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:02:50,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:02:50,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:02:50,805 INFO L87 Difference]: Start difference. First operand 40 states and 51 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) [2022-07-13 02:02:50,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:02:50,826 INFO L93 Difference]: Finished difference Result 40 states and 51 transitions. [2022-07-13 02:02:50,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:02:50,827 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 [2022-07-13 02:02:50,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:02:50,828 INFO L225 Difference]: With dead ends: 40 [2022-07-13 02:02:50,828 INFO L226 Difference]: Without dead ends: 39 [2022-07-13 02:02:50,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:02:50,829 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 8 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:02:50,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 14 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:02:50,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-07-13 02:02:50,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-07-13 02:02:50,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 34 states have (on average 1.411764705882353) internal successors, (48), 38 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:50,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2022-07-13 02:02:50,839 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 9 [2022-07-13 02:02:50,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:02:50,840 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2022-07-13 02:02:50,840 INFO L496 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) [2022-07-13 02:02:50,840 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2022-07-13 02:02:50,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-13 02:02:50,841 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:02:50,841 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:02:50,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 02:02:50,842 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:02:50,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:02:50,843 INFO L85 PathProgramCache]: Analyzing trace with hash -233874170, now seen corresponding path program 1 times [2022-07-13 02:02:50,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:02:50,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468094613] [2022-07-13 02:02:50,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:02:50,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:02:50,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:02:50,886 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:02:50,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:02:50,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468094613] [2022-07-13 02:02:50,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468094613] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:02:50,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293762715] [2022-07-13 02:02:50,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:02:50,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:02:50,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:02:50,891 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:02:50,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 02:02:50,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:02:50,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:02:50,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:02:50,989 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:02:50,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:02:51,023 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:02:51,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293762715] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:02:51,024 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:02:51,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-07-13 02:02:51,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872426162] [2022-07-13 02:02:51,024 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:02:51,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 02:02:51,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:02:51,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 02:02:51,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-13 02:02:51,026 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:51,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:02:51,078 INFO L93 Difference]: Finished difference Result 98 states and 135 transitions. [2022-07-13 02:02:51,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 02:02:51,079 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-07-13 02:02:51,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:02:51,080 INFO L225 Difference]: With dead ends: 98 [2022-07-13 02:02:51,080 INFO L226 Difference]: Without dead ends: 96 [2022-07-13 02:02:51,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-13 02:02:51,081 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 36 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:02:51,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 41 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:02:51,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-07-13 02:02:51,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 79. [2022-07-13 02:02:51,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 74 states have (on average 1.3918918918918919) internal successors, (103), 78 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:51,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 103 transitions. [2022-07-13 02:02:51,089 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 103 transitions. Word has length 12 [2022-07-13 02:02:51,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:02:51,089 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 103 transitions. [2022-07-13 02:02:51,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:51,090 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 103 transitions. [2022-07-13 02:02:51,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-13 02:02:51,090 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:02:51,090 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:02:51,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-13 02:02:51,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:02:51,312 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:02:51,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:02:51,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1982025395, now seen corresponding path program 1 times [2022-07-13 02:02:51,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:02:51,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576450911] [2022-07-13 02:02:51,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:02:51,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:02:51,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:02:51,376 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:02:51,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:02:51,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576450911] [2022-07-13 02:02:51,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576450911] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:02:51,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760480140] [2022-07-13 02:02:51,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:02:51,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:02:51,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:02:51,384 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:02:51,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 02:02:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:02:51,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:02:51,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:02:51,431 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:02:51,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:02:51,458 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:02:51,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [760480140] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:02:51,459 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:02:51,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-07-13 02:02:51,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189202923] [2022-07-13 02:02:51,459 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:02:51,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 02:02:51,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:02:51,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 02:02:51,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-13 02:02:51,461 INFO L87 Difference]: Start difference. First operand 79 states and 103 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:51,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:02:51,507 INFO L93 Difference]: Finished difference Result 135 states and 186 transitions. [2022-07-13 02:02:51,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 02:02:51,507 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-07-13 02:02:51,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:02:51,508 INFO L225 Difference]: With dead ends: 135 [2022-07-13 02:02:51,511 INFO L226 Difference]: Without dead ends: 133 [2022-07-13 02:02:51,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-13 02:02:51,512 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 35 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:02:51,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 23 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:02:51,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-07-13 02:02:51,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 99. [2022-07-13 02:02:51,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 95 states have (on average 1.3473684210526315) internal successors, (128), 98 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:51,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 128 transitions. [2022-07-13 02:02:51,526 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 128 transitions. Word has length 13 [2022-07-13 02:02:51,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:02:51,527 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 128 transitions. [2022-07-13 02:02:51,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:51,527 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 128 transitions. [2022-07-13 02:02:51,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-13 02:02:51,528 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:02:51,528 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-07-13 02:02:51,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-13 02:02:51,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-07-13 02:02:51,742 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:02:51,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:02:51,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1414776337, now seen corresponding path program 1 times [2022-07-13 02:02:51,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:02:51,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059546517] [2022-07-13 02:02:51,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:02:51,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:02:51,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:02:51,782 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:02:51,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:02:51,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059546517] [2022-07-13 02:02:51,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059546517] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:02:51,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723826676] [2022-07-13 02:02:51,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:02:51,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:02:51,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:02:51,785 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:02:51,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-13 02:02:51,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:02:51,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:02:51,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:02:51,835 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:02:51,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:02:51,859 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:02:51,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [723826676] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:02:51,860 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:02:51,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-07-13 02:02:51,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778233724] [2022-07-13 02:02:51,860 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:02:51,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 02:02:51,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:02:51,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 02:02:51,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-13 02:02:51,861 INFO L87 Difference]: Start difference. First operand 99 states and 128 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:51,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:02:51,888 INFO L93 Difference]: Finished difference Result 207 states and 268 transitions. [2022-07-13 02:02:51,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 02:02:51,889 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 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 [2022-07-13 02:02:51,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:02:51,890 INFO L225 Difference]: With dead ends: 207 [2022-07-13 02:02:51,890 INFO L226 Difference]: Without dead ends: 206 [2022-07-13 02:02:51,890 INFO L412 NwaCegarLoop]: 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 [2022-07-13 02:02:51,891 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 33 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:02:51,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 44 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:02:51,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-07-13 02:02:51,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 204. [2022-07-13 02:02:51,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 200 states have (on average 1.24) internal successors, (248), 203 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:51,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 248 transitions. [2022-07-13 02:02:51,905 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 248 transitions. Word has length 14 [2022-07-13 02:02:51,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:02:51,905 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 248 transitions. [2022-07-13 02:02:51,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:51,905 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 248 transitions. [2022-07-13 02:02:51,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-13 02:02:51,906 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:02:51,906 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1] [2022-07-13 02:02:51,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-13 02:02:52,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:02:52,120 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:02:52,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:02:52,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1022063642, now seen corresponding path program 1 times [2022-07-13 02:02:52,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:02:52,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423923767] [2022-07-13 02:02:52,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:02:52,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:02:52,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:02:52,197 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:02:52,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:02:52,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423923767] [2022-07-13 02:02:52,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423923767] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:02:52,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645868595] [2022-07-13 02:02:52,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:02:52,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:02:52,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:02:52,199 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:02:52,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-13 02:02:52,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:02:52,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 02:02:52,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:02:52,257 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:02:52,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:02:52,314 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:02:52,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645868595] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:02:52,315 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:02:52,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-07-13 02:02:52,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675259312] [2022-07-13 02:02:52,316 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:02:52,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 02:02:52,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:02:52,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 02:02:52,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-07-13 02:02:52,317 INFO L87 Difference]: Start difference. First operand 204 states and 248 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 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) [2022-07-13 02:02:52,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:02:52,392 INFO L93 Difference]: Finished difference Result 399 states and 515 transitions. [2022-07-13 02:02:52,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 02:02:52,393 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 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) Word has length 19 [2022-07-13 02:02:52,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:02:52,394 INFO L225 Difference]: With dead ends: 399 [2022-07-13 02:02:52,395 INFO L226 Difference]: Without dead ends: 398 [2022-07-13 02:02:52,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-07-13 02:02:52,396 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 41 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:02:52,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 49 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:02:52,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2022-07-13 02:02:52,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 330. [2022-07-13 02:02:52,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 326 states have (on average 1.2760736196319018) internal successors, (416), 329 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:52,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 416 transitions. [2022-07-13 02:02:52,420 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 416 transitions. Word has length 19 [2022-07-13 02:02:52,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:02:52,420 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 416 transitions. [2022-07-13 02:02:52,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 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) [2022-07-13 02:02:52,421 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 416 transitions. [2022-07-13 02:02:52,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-13 02:02:52,422 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:02:52,422 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1] [2022-07-13 02:02:52,443 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-13 02:02:52,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:02:52,635 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:02:52,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:02:52,636 INFO L85 PathProgramCache]: Analyzing trace with hash -957667535, now seen corresponding path program 2 times [2022-07-13 02:02:52,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:02:52,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922548016] [2022-07-13 02:02:52,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:02:52,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:02:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:02:52,685 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:02:52,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:02:52,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922548016] [2022-07-13 02:02:52,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922548016] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:02:52,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391542857] [2022-07-13 02:02:52,686 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 02:02:52,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:02:52,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:02:52,688 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:02:52,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-13 02:02:52,717 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 02:02:52,717 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:02:52,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 02:02:52,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:02:52,767 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:02:52,767 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:02:52,841 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:02:52,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391542857] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:02:52,841 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:02:52,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-07-13 02:02:52,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772387083] [2022-07-13 02:02:52,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:02:52,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 02:02:52,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:02:52,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 02:02:52,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-13 02:02:52,845 INFO L87 Difference]: Start difference. First operand 330 states and 416 transitions. Second operand has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:52,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:02:52,952 INFO L93 Difference]: Finished difference Result 871 states and 1195 transitions. [2022-07-13 02:02:52,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 02:02:52,952 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 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 30 [2022-07-13 02:02:52,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:02:52,956 INFO L225 Difference]: With dead ends: 871 [2022-07-13 02:02:52,956 INFO L226 Difference]: Without dead ends: 869 [2022-07-13 02:02:52,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-13 02:02:52,957 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 111 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:02:52,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 81 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:02:52,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2022-07-13 02:02:52,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 573. [2022-07-13 02:02:52,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 569 states have (on average 1.2864674868189807) internal successors, (732), 572 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:52,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 732 transitions. [2022-07-13 02:02:52,984 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 732 transitions. Word has length 30 [2022-07-13 02:02:52,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:02:52,984 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 732 transitions. [2022-07-13 02:02:52,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:52,985 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 732 transitions. [2022-07-13 02:02:52,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-13 02:02:52,986 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:02:52,986 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1] [2022-07-13 02:02:53,011 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-07-13 02:02:53,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:02:53,200 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:02:53,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:02:53,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1195498150, now seen corresponding path program 2 times [2022-07-13 02:02:53,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:02:53,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778604752] [2022-07-13 02:02:53,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:02:53,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:02:53,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:02:53,259 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-13 02:02:53,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:02:53,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778604752] [2022-07-13 02:02:53,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778604752] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:02:53,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351047758] [2022-07-13 02:02:53,260 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 02:02:53,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:02:53,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:02:53,261 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:02:53,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-13 02:02:53,280 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-13 02:02:53,280 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:02:53,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:02:53,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:02:53,326 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-13 02:02:53,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:02:53,370 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-13 02:02:53,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351047758] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:02:53,370 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:02:53,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2022-07-13 02:02:53,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265393983] [2022-07-13 02:02:53,371 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:02:53,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 02:02:53,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:02:53,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 02:02:53,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 02:02:53,372 INFO L87 Difference]: Start difference. First operand 573 states and 732 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:53,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:02:53,395 INFO L93 Difference]: Finished difference Result 573 states and 732 transitions. [2022-07-13 02:02:53,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 02:02:53,395 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-07-13 02:02:53,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:02:53,398 INFO L225 Difference]: With dead ends: 573 [2022-07-13 02:02:53,398 INFO L226 Difference]: Without dead ends: 572 [2022-07-13 02:02:53,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:02:53,399 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 13 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 13 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 [2022-07-13 02:02:53,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 13 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:02:53,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2022-07-13 02:02:53,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 457. [2022-07-13 02:02:53,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 454 states have (on average 1.1894273127753303) internal successors, (540), 456 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:53,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 540 transitions. [2022-07-13 02:02:53,416 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 540 transitions. Word has length 32 [2022-07-13 02:02:53,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:02:53,417 INFO L495 AbstractCegarLoop]: Abstraction has 457 states and 540 transitions. [2022-07-13 02:02:53,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:53,417 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 540 transitions. [2022-07-13 02:02:53,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-13 02:02:53,418 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:02:53,418 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 1, 1, 1, 1] [2022-07-13 02:02:53,445 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-07-13 02:02:53,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:02:53,640 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:02:53,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:02:53,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1056880102, now seen corresponding path program 2 times [2022-07-13 02:02:53,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:02:53,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073137001] [2022-07-13 02:02:53,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:02:53,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:02:53,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:02:53,731 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:02:53,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:02:53,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073137001] [2022-07-13 02:02:53,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073137001] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:02:53,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881022780] [2022-07-13 02:02:53,732 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 02:02:53,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:02:53,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:02:53,734 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:02:53,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-13 02:02:53,763 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 02:02:53,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:02:53,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 02:02:53,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:02:53,826 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:02:53,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:02:53,964 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:02:53,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881022780] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:02:53,964 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:02:53,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-07-13 02:02:53,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673080882] [2022-07-13 02:02:53,965 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:02:53,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-13 02:02:53,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:02:53,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-13 02:02:53,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-07-13 02:02:53,967 INFO L87 Difference]: Start difference. First operand 457 states and 540 transitions. Second operand has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:54,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:02:54,136 INFO L93 Difference]: Finished difference Result 1649 states and 2020 transitions. [2022-07-13 02:02:54,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-13 02:02:54,137 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 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 43 [2022-07-13 02:02:54,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:02:54,142 INFO L225 Difference]: With dead ends: 1649 [2022-07-13 02:02:54,142 INFO L226 Difference]: Without dead ends: 1648 [2022-07-13 02:02:54,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-07-13 02:02:54,143 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 110 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:02:54,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 82 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:02:54,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1648 states. [2022-07-13 02:02:54,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1648 to 903. [2022-07-13 02:02:54,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 903 states, 900 states have (on average 1.18) internal successors, (1062), 902 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:54,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1062 transitions. [2022-07-13 02:02:54,184 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1062 transitions. Word has length 43 [2022-07-13 02:02:54,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:02:54,184 INFO L495 AbstractCegarLoop]: Abstraction has 903 states and 1062 transitions. [2022-07-13 02:02:54,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:54,184 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1062 transitions. [2022-07-13 02:02:54,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-13 02:02:54,186 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:02:54,186 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1, 1, 1] [2022-07-13 02:02:54,211 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-13 02:02:54,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:02:54,400 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:02:54,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:02:54,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1254740665, now seen corresponding path program 3 times [2022-07-13 02:02:54,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:02:54,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74559499] [2022-07-13 02:02:54,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:02:54,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:02:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:02:54,527 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:02:54,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:02:54,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74559499] [2022-07-13 02:02:54,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74559499] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:02:54,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845049063] [2022-07-13 02:02:54,528 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-13 02:02:54,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:02:54,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:02:54,529 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:02:54,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-13 02:02:54,570 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-07-13 02:02:54,570 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:02:54,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-13 02:02:54,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:02:54,654 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:02:54,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:02:54,886 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:02:54,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845049063] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:02:54,886 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:02:54,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-07-13 02:02:54,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081257667] [2022-07-13 02:02:54,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:02:54,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-13 02:02:54,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:02:54,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-13 02:02:54,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-07-13 02:02:54,889 INFO L87 Difference]: Start difference. First operand 903 states and 1062 transitions. Second operand has 24 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 24 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:55,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:02:55,148 INFO L93 Difference]: Finished difference Result 4199 states and 5264 transitions. [2022-07-13 02:02:55,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 02:02:55,149 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 24 states have internal predecessors, (130), 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 66 [2022-07-13 02:02:55,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:02:55,161 INFO L225 Difference]: With dead ends: 4199 [2022-07-13 02:02:55,161 INFO L226 Difference]: Without dead ends: 4197 [2022-07-13 02:02:55,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-07-13 02:02:55,164 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 167 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:02:55,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 127 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:02:55,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4197 states. [2022-07-13 02:02:55,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4197 to 1945. [2022-07-13 02:02:55,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1945 states, 1942 states have (on average 1.1596292481977344) internal successors, (2252), 1944 states have internal predecessors, (2252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:55,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1945 states to 1945 states and 2252 transitions. [2022-07-13 02:02:55,249 INFO L78 Accepts]: Start accepts. Automaton has 1945 states and 2252 transitions. Word has length 66 [2022-07-13 02:02:55,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:02:55,250 INFO L495 AbstractCegarLoop]: Abstraction has 1945 states and 2252 transitions. [2022-07-13 02:02:55,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 24 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:55,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1945 states and 2252 transitions. [2022-07-13 02:02:55,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-13 02:02:55,252 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:02:55,252 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 1, 1, 1, 1] [2022-07-13 02:02:55,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-13 02:02:55,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-13 02:02:55,468 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:02:55,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:02:55,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1812968066, now seen corresponding path program 3 times [2022-07-13 02:02:55,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:02:55,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665921544] [2022-07-13 02:02:55,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:02:55,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:02:55,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:02:55,645 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:02:55,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:02:55,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665921544] [2022-07-13 02:02:55,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665921544] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:02:55,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004756646] [2022-07-13 02:02:55,646 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-13 02:02:55,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:02:55,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:02:55,648 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:02:55,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-13 02:02:55,714 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-07-13 02:02:55,714 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:02:55,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-13 02:02:55,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:02:55,835 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:02:55,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:02:56,218 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:02:56,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004756646] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:02:56,219 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:02:56,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 31 [2022-07-13 02:02:56,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863801569] [2022-07-13 02:02:56,219 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:02:56,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-07-13 02:02:56,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:02:56,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-07-13 02:02:56,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2022-07-13 02:02:56,221 INFO L87 Difference]: Start difference. First operand 1945 states and 2252 transitions. Second operand has 32 states, 31 states have (on average 5.806451612903226) internal successors, (180), 32 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:56,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:02:56,737 INFO L93 Difference]: Finished difference Result 9843 states and 11726 transitions. [2022-07-13 02:02:56,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-07-13 02:02:56,738 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 5.806451612903226) internal successors, (180), 32 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-07-13 02:02:56,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:02:56,767 INFO L225 Difference]: With dead ends: 9843 [2022-07-13 02:02:56,767 INFO L226 Difference]: Without dead ends: 9842 [2022-07-13 02:02:56,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2022-07-13 02:02:56,773 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 248 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 02:02:56,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 164 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 02:02:56,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9842 states. [2022-07-13 02:02:57,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9842 to 3731. [2022-07-13 02:02:57,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3731 states, 3728 states have (on average 1.1539699570815452) internal successors, (4302), 3730 states have internal predecessors, (4302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:57,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3731 states to 3731 states and 4302 transitions. [2022-07-13 02:02:57,023 INFO L78 Accepts]: Start accepts. Automaton has 3731 states and 4302 transitions. Word has length 91 [2022-07-13 02:02:57,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:02:57,023 INFO L495 AbstractCegarLoop]: Abstraction has 3731 states and 4302 transitions. [2022-07-13 02:02:57,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 5.806451612903226) internal successors, (180), 32 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:57,023 INFO L276 IsEmpty]: Start isEmpty. Operand 3731 states and 4302 transitions. [2022-07-13 02:02:57,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-07-13 02:02:57,031 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:02:57,031 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 1, 1, 1, 1] [2022-07-13 02:02:57,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-13 02:02:57,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-13 02:02:57,254 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:02:57,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:02:57,254 INFO L85 PathProgramCache]: Analyzing trace with hash 924663923, now seen corresponding path program 4 times [2022-07-13 02:02:57,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:02:57,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934133429] [2022-07-13 02:02:57,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:02:57,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:02:57,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:02:57,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:02:57,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:02:57,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934133429] [2022-07-13 02:02:57,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934133429] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:02:57,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713060772] [2022-07-13 02:02:57,613 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-13 02:02:57,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:02:57,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:02:57,628 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) [2022-07-13 02:02:57,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-13 02:02:57,712 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-13 02:02:57,713 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:02:57,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 24 conjunts are in the unsatisfiable core [2022-07-13 02:02:57,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:02:57,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:02:57,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:02:58,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:02:58,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713060772] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:02:58,629 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:02:58,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-07-13 02:02:58,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176222090] [2022-07-13 02:02:58,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:02:58,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-07-13 02:02:58,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:02:58,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-07-13 02:02:58,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-07-13 02:02:58,632 INFO L87 Difference]: Start difference. First operand 3731 states and 4302 transitions. Second operand has 48 states, 47 states have (on average 5.829787234042553) internal successors, (274), 48 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:59,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:02:59,801 INFO L93 Difference]: Finished difference Result 26439 states and 31924 transitions. [2022-07-13 02:02:59,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-07-13 02:02:59,802 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.829787234042553) internal successors, (274), 48 states have internal predecessors, (274), 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 138 [2022-07-13 02:02:59,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:02:59,884 INFO L225 Difference]: With dead ends: 26439 [2022-07-13 02:02:59,885 INFO L226 Difference]: Without dead ends: 26437 [2022-07-13 02:02:59,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-07-13 02:02:59,904 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 378 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 345 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 345 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 02:02:59,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 248 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [345 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 02:02:59,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26437 states. [2022-07-13 02:03:00,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26437 to 7993. [2022-07-13 02:03:00,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7993 states, 7990 states have (on average 1.1429286608260325) internal successors, (9132), 7992 states have internal predecessors, (9132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:03:00,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7993 states to 7993 states and 9132 transitions. [2022-07-13 02:03:00,441 INFO L78 Accepts]: Start accepts. Automaton has 7993 states and 9132 transitions. Word has length 138 [2022-07-13 02:03:00,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:03:00,441 INFO L495 AbstractCegarLoop]: Abstraction has 7993 states and 9132 transitions. [2022-07-13 02:03:00,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.829787234042553) internal successors, (274), 48 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:03:00,442 INFO L276 IsEmpty]: Start isEmpty. Operand 7993 states and 9132 transitions. [2022-07-13 02:03:00,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-13 02:03:00,447 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:03:00,447 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 30, 30, 30, 1, 1, 1, 1] [2022-07-13 02:03:00,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-13 02:03:00,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-13 02:03:00,663 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:03:00,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:03:00,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1942998190, now seen corresponding path program 4 times [2022-07-13 02:03:00,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:03:00,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519337497] [2022-07-13 02:03:00,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:03:00,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:03:00,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:03:01,181 INFO L134 CoverageAnalysis]: Checked inductivity of 2730 backedges. 0 proven. 2730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:03:01,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:03:01,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519337497] [2022-07-13 02:03:01,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519337497] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:03:01,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693906990] [2022-07-13 02:03:01,182 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-13 02:03:01,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:03:01,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:03:01,187 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) [2022-07-13 02:03:01,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-13 02:03:01,252 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-13 02:03:01,252 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:03:01,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 32 conjunts are in the unsatisfiable core [2022-07-13 02:03:01,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:03:01,498 INFO L134 CoverageAnalysis]: Checked inductivity of 2730 backedges. 0 proven. 2730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:03:01,498 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:03:02,786 INFO L134 CoverageAnalysis]: Checked inductivity of 2730 backedges. 0 proven. 2730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:03:02,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693906990] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:03:02,786 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:03:02,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 63 [2022-07-13 02:03:02,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943618087] [2022-07-13 02:03:02,787 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:03:02,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-07-13 02:03:02,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:03:02,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-07-13 02:03:02,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2022-07-13 02:03:02,790 INFO L87 Difference]: Start difference. First operand 7993 states and 9132 transitions. Second operand has 64 states, 63 states have (on average 5.904761904761905) internal successors, (372), 64 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:03:05,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:03:05,208 INFO L93 Difference]: Finished difference Result 65015 states and 75718 transitions. [2022-07-13 02:03:05,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-07-13 02:03:05,209 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 5.904761904761905) internal successors, (372), 64 states have internal predecessors, (372), 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 187 [2022-07-13 02:03:05,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:03:05,304 INFO L225 Difference]: With dead ends: 65015 [2022-07-13 02:03:05,304 INFO L226 Difference]: Without dead ends: 65014 [2022-07-13 02:03:05,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2022-07-13 02:03:05,326 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 562 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 720 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 720 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 02:03:05,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 326 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [720 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 02:03:05,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65014 states. [2022-07-13 02:03:06,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65014 to 15147. [2022-07-13 02:03:06,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15147 states, 15144 states have (on average 1.1398573692551506) internal successors, (17262), 15146 states have internal predecessors, (17262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:03:06,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15147 states to 15147 states and 17262 transitions. [2022-07-13 02:03:06,575 INFO L78 Accepts]: Start accepts. Automaton has 15147 states and 17262 transitions. Word has length 187 [2022-07-13 02:03:06,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:03:06,576 INFO L495 AbstractCegarLoop]: Abstraction has 15147 states and 17262 transitions. [2022-07-13 02:03:06,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 5.904761904761905) internal successors, (372), 64 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:03:06,576 INFO L276 IsEmpty]: Start isEmpty. Operand 15147 states and 17262 transitions. [2022-07-13 02:03:06,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-07-13 02:03:06,587 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:03:06,587 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 1, 1, 1, 1] [2022-07-13 02:03:06,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-13 02:03:06,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-07-13 02:03:06,797 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:03:06,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:03:06,797 INFO L85 PathProgramCache]: Analyzing trace with hash -2065071413, now seen corresponding path program 5 times [2022-07-13 02:03:06,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:03:06,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558555959] [2022-07-13 02:03:06,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:03:06,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:03:06,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:03:07,753 INFO L134 CoverageAnalysis]: Checked inductivity of 6348 backedges. 0 proven. 6348 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:03:07,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:03:07,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558555959] [2022-07-13 02:03:07,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558555959] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:03:07,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161281426] [2022-07-13 02:03:07,754 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-13 02:03:07,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:03:07,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:03:07,755 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) [2022-07-13 02:03:07,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-13 02:03:07,873 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-07-13 02:03:07,873 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:03:07,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 48 conjunts are in the unsatisfiable core [2022-07-13 02:03:07,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:03:08,224 INFO L134 CoverageAnalysis]: Checked inductivity of 6348 backedges. 0 proven. 6348 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:03:08,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:03:10,691 INFO L134 CoverageAnalysis]: Checked inductivity of 6348 backedges. 0 proven. 6348 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:03:10,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161281426] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:03:10,692 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:03:10,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-07-13 02:03:10,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664005724] [2022-07-13 02:03:10,692 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:03:10,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-07-13 02:03:10,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:03:10,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-07-13 02:03:10,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-07-13 02:03:10,699 INFO L87 Difference]: Start difference. First operand 15147 states and 17262 transitions. Second operand has 96 states, 95 states have (on average 5.91578947368421) internal successors, (562), 96 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:03:17,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:03:17,016 INFO L93 Difference]: Finished difference Result 182335 states and 213860 transitions. [2022-07-13 02:03:17,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-07-13 02:03:17,017 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 5.91578947368421) internal successors, (562), 96 states have internal predecessors, (562), 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 282 [2022-07-13 02:03:17,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:03:17,264 INFO L225 Difference]: With dead ends: 182335 [2022-07-13 02:03:17,264 INFO L226 Difference]: Without dead ends: 182333 [2022-07-13 02:03:17,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 516 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-07-13 02:03:17,299 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 1055 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 869 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1055 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 869 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 02:03:17,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1055 Valid, 486 Invalid, 1261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [869 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 02:03:17,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182333 states. [2022-07-13 02:03:20,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182333 to 32377. [2022-07-13 02:03:20,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32377 states, 32374 states have (on average 1.1341199728176932) internal successors, (36716), 32376 states have internal predecessors, (36716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:03:20,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32377 states to 32377 states and 36716 transitions. [2022-07-13 02:03:20,677 INFO L78 Accepts]: Start accepts. Automaton has 32377 states and 36716 transitions. Word has length 282 [2022-07-13 02:03:20,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:03:20,677 INFO L495 AbstractCegarLoop]: Abstraction has 32377 states and 36716 transitions. [2022-07-13 02:03:20,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 5.91578947368421) internal successors, (562), 96 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:03:20,678 INFO L276 IsEmpty]: Start isEmpty. Operand 32377 states and 36716 transitions. [2022-07-13 02:03:20,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2022-07-13 02:03:20,700 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:03:20,701 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 62, 62, 62, 1, 1, 1, 1] [2022-07-13 02:03:20,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-13 02:03:20,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-13 02:03:20,915 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:03:20,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:03:20,916 INFO L85 PathProgramCache]: Analyzing trace with hash 2113926386, now seen corresponding path program 5 times [2022-07-13 02:03:20,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:03:20,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539447780] [2022-07-13 02:03:20,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:03:20,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:03:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:03:22,641 INFO L134 CoverageAnalysis]: Checked inductivity of 11594 backedges. 0 proven. 11594 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:03:22,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:03:22,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539447780] [2022-07-13 02:03:22,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539447780] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:03:22,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380231463] [2022-07-13 02:03:22,642 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-13 02:03:22,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:03:22,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:03:22,644 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:03:22,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-13 02:03:22,811 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 63 check-sat command(s) [2022-07-13 02:03:22,811 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:03:22,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 823 conjuncts, 64 conjunts are in the unsatisfiable core [2022-07-13 02:03:22,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:03:23,213 INFO L134 CoverageAnalysis]: Checked inductivity of 11594 backedges. 0 proven. 11594 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:03:23,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:03:27,397 INFO L134 CoverageAnalysis]: Checked inductivity of 11594 backedges. 0 proven. 11594 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:03:27,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380231463] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:03:27,398 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:03:27,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64, 64] total 127 [2022-07-13 02:03:27,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230978108] [2022-07-13 02:03:27,398 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:03:27,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 128 states [2022-07-13 02:03:27,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:03:27,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2022-07-13 02:03:27,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8128, Invalid=8128, Unknown=0, NotChecked=0, Total=16256 [2022-07-13 02:03:27,409 INFO L87 Difference]: Start difference. First operand 32377 states and 36716 transitions. Second operand has 128 states, 127 states have (on average 5.952755905511811) internal successors, (756), 128 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:03:47,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:03:47,032 INFO L93 Difference]: Finished difference Result 464895 states and 533222 transitions. [2022-07-13 02:03:47,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-07-13 02:03:47,033 INFO L78 Accepts]: Start accepts. Automaton has has 128 states, 127 states have (on average 5.952755905511811) internal successors, (756), 128 states have internal predecessors, (756), 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 379 [2022-07-13 02:03:47,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:03:47,960 INFO L225 Difference]: With dead ends: 464895 [2022-07-13 02:03:47,960 INFO L226 Difference]: Without dead ends: 464894 [2022-07-13 02:03:48,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 820 GetRequests, 694 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=8128, Invalid=8128, Unknown=0, NotChecked=0, Total=16256 [2022-07-13 02:03:48,053 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 1252 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 1371 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1252 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 1892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1371 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:03:48,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1252 Valid, 645 Invalid, 1892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1371 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-13 02:03:48,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464894 states. [2022-07-13 02:03:57,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464894 to 61019. [2022-07-13 02:03:57,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61019 states, 61016 states have (on average 1.132522617018487) internal successors, (69102), 61018 states have internal predecessors, (69102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:03:57,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61019 states to 61019 states and 69102 transitions. [2022-07-13 02:03:57,568 INFO L78 Accepts]: Start accepts. Automaton has 61019 states and 69102 transitions. Word has length 379 [2022-07-13 02:03:57,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:03:57,568 INFO L495 AbstractCegarLoop]: Abstraction has 61019 states and 69102 transitions. [2022-07-13 02:03:57,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 128 states, 127 states have (on average 5.952755905511811) internal successors, (756), 128 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:03:57,569 INFO L276 IsEmpty]: Start isEmpty. Operand 61019 states and 69102 transitions. [2022-07-13 02:03:57,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2022-07-13 02:03:57,617 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:03:57,618 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 94, 1, 1, 1, 1] [2022-07-13 02:03:57,644 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-13 02:03:57,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-07-13 02:03:57,831 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:03:57,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:03:57,832 INFO L85 PathProgramCache]: Analyzing trace with hash 944404347, now seen corresponding path program 6 times [2022-07-13 02:03:57,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:03:57,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59823145] [2022-07-13 02:03:57,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:03:57,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:03:58,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:04:01,152 INFO L134 CoverageAnalysis]: Checked inductivity of 26508 backedges. 0 proven. 26508 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:04:01,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:04:01,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59823145] [2022-07-13 02:04:01,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59823145] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:04:01,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1734774959] [2022-07-13 02:04:01,152 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-13 02:04:01,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:04:01,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:04:01,155 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:04:01,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-13 02:04:01,419 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-07-13 02:04:01,419 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:04:01,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 1143 conjuncts, 96 conjunts are in the unsatisfiable core [2022-07-13 02:04:01,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:04:02,003 INFO L134 CoverageAnalysis]: Checked inductivity of 26508 backedges. 0 proven. 26508 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:04:02,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:04:10,821 INFO L134 CoverageAnalysis]: Checked inductivity of 26508 backedges. 0 proven. 26508 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:04:10,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1734774959] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:04:10,821 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:04:10,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2022-07-13 02:04:10,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545291937] [2022-07-13 02:04:10,822 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:04:10,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-07-13 02:04:10,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:04:10,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-07-13 02:04:10,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-07-13 02:04:10,837 INFO L87 Difference]: Start difference. First operand 61019 states and 69102 transitions. Second operand has 192 states, 191 states have (on average 5.958115183246074) internal successors, (1138), 192 states have internal predecessors, (1138), 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)