./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/goblint-regression/09-regions_26-alloc_region_rc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-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 32bit --witnessprinter.graph.data.programhash a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 02:24:50,705 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 02:24:50,707 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 02:24:50,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 02:24:50,754 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 02:24:50,755 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 02:24:50,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 02:24:50,764 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 02:24:50,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 02:24:50,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 02:24:50,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 02:24:50,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 02:24:50,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 02:24:50,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 02:24:50,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 02:24:50,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 02:24:50,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 02:24:50,780 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 02:24:50,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 02:24:50,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 02:24:50,791 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 02:24:50,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 02:24:50,793 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 02:24:50,794 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 02:24:50,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 02:24:50,802 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 02:24:50,802 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 02:24:50,803 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 02:24:50,804 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 02:24:50,804 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 02:24:50,805 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 02:24:50,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 02:24:50,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 02:24:50,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 02:24:50,809 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 02:24:50,809 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 02:24:50,809 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 02:24:50,810 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 02:24:50,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 02:24:50,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 02:24:50,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 02:24:50,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 02:24:50,814 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-13 02:24:50,845 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 02:24:50,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 02:24:50,845 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 02:24:50,846 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 02:24:50,846 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 02:24:50,847 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 02:24:50,847 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 02:24:50,847 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 02:24:50,848 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 02:24:50,849 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 02:24:50,849 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 02:24:50,849 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 02:24:50,849 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 02:24:50,849 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 02:24:50,850 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 02:24:50,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 02:24:50,850 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 02:24:50,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 02:24:50,850 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-13 02:24:50,851 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 02:24:50,851 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 02:24:50,851 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 02:24:50,851 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 02:24:50,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 02:24:50,853 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 02:24:50,853 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 02:24:50,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:24:50,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 02:24:50,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 02:24:50,854 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 02:24:50,854 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 02:24:50,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 02:24:50,855 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 02:24:50,855 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 [2022-07-13 02:24:51,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 02:24:51,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 02:24:51,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 02:24:51,157 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 02:24:51,158 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 02:24:51,159 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i [2022-07-13 02:24:51,213 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21b5b41b6/57f853d4dad5438286c6a8130673170b/FLAGb83d1d4be [2022-07-13 02:24:51,749 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 02:24:51,750 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i [2022-07-13 02:24:51,766 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21b5b41b6/57f853d4dad5438286c6a8130673170b/FLAGb83d1d4be [2022-07-13 02:24:52,028 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21b5b41b6/57f853d4dad5438286c6a8130673170b [2022-07-13 02:24:52,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 02:24:52,032 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 02:24:52,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 02:24:52,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 02:24:52,038 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 02:24:52,039 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:24:52" (1/1) ... [2022-07-13 02:24:52,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d18bfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:24:52, skipping insertion in model container [2022-07-13 02:24:52,040 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:24:52" (1/1) ... [2022-07-13 02:24:52,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 02:24:52,107 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 02:24:52,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:24:52,578 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 02:24:52,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:24:52,678 INFO L208 MainTranslator]: Completed translation [2022-07-13 02:24:52,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:24:52 WrapperNode [2022-07-13 02:24:52,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 02:24:52,680 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 02:24:52,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 02:24:52,681 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 02:24:52,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:24:52" (1/1) ... [2022-07-13 02:24:52,723 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:24:52" (1/1) ... [2022-07-13 02:24:52,746 INFO L137 Inliner]: procedures = 370, calls = 51, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 119 [2022-07-13 02:24:52,747 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 02:24:52,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 02:24:52,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 02:24:52,748 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 02:24:52,752 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:24:52" (1/1) ... [2022-07-13 02:24:52,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:24:52" (1/1) ... [2022-07-13 02:24:52,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:24:52" (1/1) ... [2022-07-13 02:24:52,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:24:52" (1/1) ... [2022-07-13 02:24:52,764 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:24:52" (1/1) ... [2022-07-13 02:24:52,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:24:52" (1/1) ... [2022-07-13 02:24:52,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:24:52" (1/1) ... [2022-07-13 02:24:52,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 02:24:52,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 02:24:52,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 02:24:52,786 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 02:24:52,788 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:24:52" (1/1) ... [2022-07-13 02:24:52,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:24:52,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:24:52,814 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 02:24:52,817 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 02:24:52,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 02:24:52,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-13 02:24:52,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 02:24:52,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-13 02:24:52,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 02:24:52,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 02:24:52,848 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-13 02:24:52,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-13 02:24:52,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 02:24:52,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-13 02:24:52,849 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-13 02:24:52,849 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-13 02:24:52,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 02:24:52,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 02:24:52,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 02:24:52,851 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-13 02:24:53,020 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 02:24:53,022 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 02:24:53,325 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 02:24:53,332 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 02:24:53,333 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 02:24:53,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:24:53 BoogieIcfgContainer [2022-07-13 02:24:53,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 02:24:53,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 02:24:53,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 02:24:53,339 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 02:24:53,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:24:52" (1/3) ... [2022-07-13 02:24:53,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12dcc929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:24:53, skipping insertion in model container [2022-07-13 02:24:53,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:24:52" (2/3) ... [2022-07-13 02:24:53,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12dcc929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:24:53, skipping insertion in model container [2022-07-13 02:24:53,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:24:53" (3/3) ... [2022-07-13 02:24:53,342 INFO L111 eAbstractionObserver]: Analyzing ICFG 09-regions_26-alloc_region_rc.i [2022-07-13 02:24:53,347 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-13 02:24:53,355 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 02:24:53,356 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-13 02:24:53,356 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-13 02:24:53,437 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-13 02:24:53,484 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-13 02:24:53,497 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 141 places, 139 transitions, 283 flow [2022-07-13 02:24:53,501 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 141 places, 139 transitions, 283 flow [2022-07-13 02:24:53,503 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 141 places, 139 transitions, 283 flow [2022-07-13 02:24:53,588 INFO L129 PetriNetUnfolder]: 2/138 cut-off events. [2022-07-13 02:24:53,588 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-13 02:24:53,592 INFO L84 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 138 events. 2/138 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 112 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 89. Up to 2 conditions per place. [2022-07-13 02:24:53,596 INFO L116 LiptonReduction]: Number of co-enabled transitions 3900 [2022-07-13 02:25:57,195 INFO L131 LiptonReduction]: Checked pairs total: 8455 [2022-07-13 02:25:57,196 INFO L133 LiptonReduction]: Total number of compositions: 113 [2022-07-13 02:25:57,203 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 33 transitions, 71 flow [2022-07-13 02:25:57,230 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 197 states, 194 states have (on average 2.0103092783505154) internal successors, (390), 196 states have internal predecessors, (390), 0 states have call successors, (0), 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 02:25:57,245 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 02:25:57,251 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@954f55a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@177436f7 [2022-07-13 02:25:57,251 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-07-13 02:25:57,253 INFO L276 IsEmpty]: Start isEmpty. Operand has 197 states, 194 states have (on average 2.0103092783505154) internal successors, (390), 196 states have internal predecessors, (390), 0 states have call successors, (0), 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 02:25:57,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-13 02:25:57,260 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:25:57,261 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:25:57,262 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-07-13 02:25:57,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:25:57,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1096235898, now seen corresponding path program 1 times [2022-07-13 02:25:57,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:25:57,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718170934] [2022-07-13 02:25:57,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:25:57,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:25:57,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:25:57,961 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 02:25:57,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:25:57,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718170934] [2022-07-13 02:25:57,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718170934] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:25:57,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:25:57,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 02:25:57,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921406986] [2022-07-13 02:25:57,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:25:57,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 02:25:57,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:25:57,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 02:25:57,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-07-13 02:25:57,995 INFO L87 Difference]: Start difference. First operand has 197 states, 194 states have (on average 2.0103092783505154) internal successors, (390), 196 states have internal predecessors, (390), 0 states have call successors, (0), 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 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 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 02:25:58,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:25:58,913 INFO L93 Difference]: Finished difference Result 333 states and 622 transitions. [2022-07-13 02:25:58,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 02:25:58,915 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 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 02:25:58,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:25:58,923 INFO L225 Difference]: With dead ends: 333 [2022-07-13 02:25:58,924 INFO L226 Difference]: Without dead ends: 222 [2022-07-13 02:25:58,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2022-07-13 02:25:58,927 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 143 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 02:25:58,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 5 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-13 02:25:58,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-07-13 02:25:58,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 212. [2022-07-13 02:25:58,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 210 states have (on average 1.8666666666666667) internal successors, (392), 211 states have internal predecessors, (392), 0 states have call successors, (0), 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 02:25:58,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 392 transitions. [2022-07-13 02:25:58,966 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 392 transitions. Word has length 12 [2022-07-13 02:25:58,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:25:58,966 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 392 transitions. [2022-07-13 02:25:58,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 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 02:25:58,967 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 392 transitions. [2022-07-13 02:25:58,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-13 02:25:58,968 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:25:58,968 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:25:58,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 02:25:58,969 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-07-13 02:25:58,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:25:58,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1903418153, now seen corresponding path program 1 times [2022-07-13 02:25:58,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:25:58,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377114774] [2022-07-13 02:25:58,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:25:58,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:25:59,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:25:59,266 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 02:25:59,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:25:59,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377114774] [2022-07-13 02:25:59,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377114774] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:25:59,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:25:59,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-13 02:25:59,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637015563] [2022-07-13 02:25:59,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:25:59,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-13 02:25:59,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:25:59,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-13 02:25:59,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-07-13 02:25:59,269 INFO L87 Difference]: Start difference. First operand 212 states and 392 transitions. Second operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 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 02:25:59,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:25:59,883 INFO L93 Difference]: Finished difference Result 210 states and 388 transitions. [2022-07-13 02:25:59,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 02:25:59,884 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 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 02:25:59,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:25:59,885 INFO L225 Difference]: With dead ends: 210 [2022-07-13 02:25:59,885 INFO L226 Difference]: Without dead ends: 210 [2022-07-13 02:25:59,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2022-07-13 02:25:59,887 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 69 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 02:25:59,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 6 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 02:25:59,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-07-13 02:25:59,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 202. [2022-07-13 02:25:59,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 200 states have (on average 1.865) internal successors, (373), 201 states have internal predecessors, (373), 0 states have call successors, (0), 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 02:25:59,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 373 transitions. [2022-07-13 02:25:59,911 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 373 transitions. Word has length 13 [2022-07-13 02:25:59,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:25:59,912 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 373 transitions. [2022-07-13 02:25:59,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 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 02:25:59,912 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 373 transitions. [2022-07-13 02:25:59,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-13 02:25:59,917 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:25:59,917 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:25:59,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 02:25:59,918 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-07-13 02:25:59,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:25:59,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1206312562, now seen corresponding path program 1 times [2022-07-13 02:25:59,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:25:59,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728671275] [2022-07-13 02:25:59,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:25:59,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:25:59,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:26:00,328 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 02:26:00,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:26:00,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728671275] [2022-07-13 02:26:00,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728671275] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:26:00,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:26:00,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-13 02:26:00,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129228433] [2022-07-13 02:26:00,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:26:00,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 02:26:00,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:26:00,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 02:26:00,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-07-13 02:26:00,331 INFO L87 Difference]: Start difference. First operand 202 states and 373 transitions. Second operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 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 02:26:01,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:26:01,082 INFO L93 Difference]: Finished difference Result 371 states and 692 transitions. [2022-07-13 02:26:01,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 02:26:01,085 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 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 14 [2022-07-13 02:26:01,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:26:01,087 INFO L225 Difference]: With dead ends: 371 [2022-07-13 02:26:01,087 INFO L226 Difference]: Without dead ends: 371 [2022-07-13 02:26:01,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2022-07-13 02:26:01,089 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 141 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 02:26:01,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 8 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 02:26:01,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-07-13 02:26:01,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 211. [2022-07-13 02:26:01,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 209 states have (on average 1.8660287081339713) internal successors, (390), 210 states have internal predecessors, (390), 0 states have call successors, (0), 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 02:26:01,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 390 transitions. [2022-07-13 02:26:01,103 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 390 transitions. Word has length 14 [2022-07-13 02:26:01,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:26:01,103 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 390 transitions. [2022-07-13 02:26:01,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 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 02:26:01,103 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 390 transitions. [2022-07-13 02:26:01,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-13 02:26:01,104 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:26:01,105 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:26:01,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 02:26:01,105 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-07-13 02:26:01,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:26:01,106 INFO L85 PathProgramCache]: Analyzing trace with hash 763413422, now seen corresponding path program 2 times [2022-07-13 02:26:01,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:26:01,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275195159] [2022-07-13 02:26:01,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:26:01,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:26:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:26:01,394 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 02:26:01,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:26:01,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275195159] [2022-07-13 02:26:01,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275195159] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:26:01,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:26:01,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-13 02:26:01,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483472317] [2022-07-13 02:26:01,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:26:01,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 02:26:01,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:26:01,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 02:26:01,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-07-13 02:26:01,398 INFO L87 Difference]: Start difference. First operand 211 states and 390 transitions. Second operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 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 02:26:01,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:26:01,991 INFO L93 Difference]: Finished difference Result 341 states and 635 transitions. [2022-07-13 02:26:01,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 02:26:01,992 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 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 14 [2022-07-13 02:26:01,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:26:01,994 INFO L225 Difference]: With dead ends: 341 [2022-07-13 02:26:01,994 INFO L226 Difference]: Without dead ends: 341 [2022-07-13 02:26:01,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2022-07-13 02:26:01,995 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 90 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 02:26:01,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 10 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 02:26:01,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2022-07-13 02:26:02,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 172. [2022-07-13 02:26:02,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 170 states have (on average 1.8588235294117648) internal successors, (316), 171 states have internal predecessors, (316), 0 states have call successors, (0), 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 02:26:02,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 316 transitions. [2022-07-13 02:26:02,006 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 316 transitions. Word has length 14 [2022-07-13 02:26:02,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:26:02,006 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 316 transitions. [2022-07-13 02:26:02,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 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 02:26:02,007 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 316 transitions. [2022-07-13 02:26:02,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-13 02:26:02,007 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:26:02,008 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:26:02,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 02:26:02,008 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-07-13 02:26:02,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:26:02,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1964500545, now seen corresponding path program 1 times [2022-07-13 02:26:02,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:26:02,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474019344] [2022-07-13 02:26:02,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:26:02,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:26:02,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:26:02,049 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 02:26:02,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:26:02,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474019344] [2022-07-13 02:26:02,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474019344] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:26:02,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:26:02,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:26:02,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138189789] [2022-07-13 02:26:02,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:26:02,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:26:02,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:26:02,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:26:02,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:26:02,052 INFO L87 Difference]: Start difference. First operand 172 states and 316 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:02,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:26:02,134 INFO L93 Difference]: Finished difference Result 130 states and 211 transitions. [2022-07-13 02:26:02,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:26:02,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-07-13 02:26:02,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:26:02,138 INFO L225 Difference]: With dead ends: 130 [2022-07-13 02:26:02,138 INFO L226 Difference]: Without dead ends: 130 [2022-07-13 02:26:02,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:26:02,139 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 15 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:26:02,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 5 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:26:02,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-07-13 02:26:02,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 128. [2022-07-13 02:26:02,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 126 states have (on average 1.6507936507936507) internal successors, (208), 127 states have internal predecessors, (208), 0 states have call successors, (0), 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 02:26:02,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 208 transitions. [2022-07-13 02:26:02,144 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 208 transitions. Word has length 17 [2022-07-13 02:26:02,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:26:02,144 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 208 transitions. [2022-07-13 02:26:02,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:02,145 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 208 transitions. [2022-07-13 02:26:02,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-13 02:26:02,145 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:26:02,145 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:26:02,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 02:26:02,146 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-07-13 02:26:02,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:26:02,146 INFO L85 PathProgramCache]: Analyzing trace with hash -836306991, now seen corresponding path program 2 times [2022-07-13 02:26:02,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:26:02,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517872617] [2022-07-13 02:26:02,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:26:02,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:26:02,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:26:02,516 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 02:26:02,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:26:02,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517872617] [2022-07-13 02:26:02,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517872617] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:26:02,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:26:02,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 02:26:02,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847212902] [2022-07-13 02:26:02,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:26:02,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-13 02:26:02,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:26:02,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-13 02:26:02,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-07-13 02:26:02,518 INFO L87 Difference]: Start difference. First operand 128 states and 208 transitions. Second operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:03,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:26:03,153 INFO L93 Difference]: Finished difference Result 225 states and 361 transitions. [2022-07-13 02:26:03,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 02:26:03,154 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-07-13 02:26:03,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:26:03,156 INFO L225 Difference]: With dead ends: 225 [2022-07-13 02:26:03,156 INFO L226 Difference]: Without dead ends: 225 [2022-07-13 02:26:03,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2022-07-13 02:26:03,158 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 125 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 02:26:03,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 8 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 02:26:03,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2022-07-13 02:26:03,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 144. [2022-07-13 02:26:03,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 142 states have (on average 1.6338028169014085) internal successors, (232), 143 states have internal predecessors, (232), 0 states have call successors, (0), 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 02:26:03,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 232 transitions. [2022-07-13 02:26:03,165 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 232 transitions. Word has length 17 [2022-07-13 02:26:03,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:26:03,165 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 232 transitions. [2022-07-13 02:26:03,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:03,166 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 232 transitions. [2022-07-13 02:26:03,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-13 02:26:03,175 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:26:03,175 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:26:03,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 02:26:03,175 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-07-13 02:26:03,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:26:03,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1266403529, now seen corresponding path program 3 times [2022-07-13 02:26:03,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:26:03,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258079880] [2022-07-13 02:26:03,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:26:03,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:26:03,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:26:03,657 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 02:26:03,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:26:03,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258079880] [2022-07-13 02:26:03,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258079880] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:26:03,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:26:03,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-13 02:26:03,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102553482] [2022-07-13 02:26:03,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:26:03,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-13 02:26:03,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:26:03,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-13 02:26:03,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-07-13 02:26:03,659 INFO L87 Difference]: Start difference. First operand 144 states and 232 transitions. Second operand has 14 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:04,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:26:04,464 INFO L93 Difference]: Finished difference Result 233 states and 371 transitions. [2022-07-13 02:26:04,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 02:26:04,464 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-07-13 02:26:04,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:26:04,465 INFO L225 Difference]: With dead ends: 233 [2022-07-13 02:26:04,465 INFO L226 Difference]: Without dead ends: 233 [2022-07-13 02:26:04,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=321, Unknown=0, NotChecked=0, Total=462 [2022-07-13 02:26:04,466 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 115 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 02:26:04,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 8 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 02:26:04,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-07-13 02:26:04,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 152. [2022-07-13 02:26:04,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 150 states have (on average 1.6466666666666667) internal successors, (247), 151 states have internal predecessors, (247), 0 states have call successors, (0), 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 02:26:04,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 247 transitions. [2022-07-13 02:26:04,472 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 247 transitions. Word has length 17 [2022-07-13 02:26:04,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:26:04,472 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 247 transitions. [2022-07-13 02:26:04,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:04,472 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 247 transitions. [2022-07-13 02:26:04,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-13 02:26:04,473 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:26:04,473 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:26:04,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-13 02:26:04,474 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-07-13 02:26:04,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:26:04,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1184351503, now seen corresponding path program 4 times [2022-07-13 02:26:04,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:26:04,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090756448] [2022-07-13 02:26:04,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:26:04,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:26:04,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:26:04,826 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 02:26:04,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:26:04,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090756448] [2022-07-13 02:26:04,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090756448] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:26:04,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:26:04,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-13 02:26:04,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343062031] [2022-07-13 02:26:04,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:26:04,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-13 02:26:04,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:26:04,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-13 02:26:04,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-07-13 02:26:04,828 INFO L87 Difference]: Start difference. First operand 152 states and 247 transitions. Second operand has 14 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:05,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:26:05,637 INFO L93 Difference]: Finished difference Result 194 states and 313 transitions. [2022-07-13 02:26:05,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 02:26:05,637 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-07-13 02:26:05,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:26:05,638 INFO L225 Difference]: With dead ends: 194 [2022-07-13 02:26:05,638 INFO L226 Difference]: Without dead ends: 194 [2022-07-13 02:26:05,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-07-13 02:26:05,639 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 74 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 02:26:05,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 6 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 02:26:05,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-07-13 02:26:05,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 152. [2022-07-13 02:26:05,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 150 states have (on average 1.6466666666666667) internal successors, (247), 151 states have internal predecessors, (247), 0 states have call successors, (0), 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 02:26:05,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 247 transitions. [2022-07-13 02:26:05,644 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 247 transitions. Word has length 17 [2022-07-13 02:26:05,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:26:05,645 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 247 transitions. [2022-07-13 02:26:05,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:05,645 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 247 transitions. [2022-07-13 02:26:05,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-13 02:26:05,646 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:26:05,646 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:26:05,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-13 02:26:05,646 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-07-13 02:26:05,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:26:05,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1110006639, now seen corresponding path program 5 times [2022-07-13 02:26:05,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:26:05,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704914884] [2022-07-13 02:26:05,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:26:05,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:26:05,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:26:05,965 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 02:26:05,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:26:05,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704914884] [2022-07-13 02:26:05,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704914884] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:26:05,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:26:05,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-13 02:26:05,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143318360] [2022-07-13 02:26:05,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:26:05,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-13 02:26:05,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:26:05,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-13 02:26:05,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-07-13 02:26:05,968 INFO L87 Difference]: Start difference. First operand 152 states and 247 transitions. Second operand has 14 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:06,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:26:06,768 INFO L93 Difference]: Finished difference Result 226 states and 358 transitions. [2022-07-13 02:26:06,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 02:26:06,768 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-07-13 02:26:06,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:26:06,770 INFO L225 Difference]: With dead ends: 226 [2022-07-13 02:26:06,770 INFO L226 Difference]: Without dead ends: 226 [2022-07-13 02:26:06,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-07-13 02:26:06,771 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 84 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 02:26:06,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 6 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 02:26:06,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-07-13 02:26:06,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 152. [2022-07-13 02:26:06,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 150 states have (on average 1.6466666666666667) internal successors, (247), 151 states have internal predecessors, (247), 0 states have call successors, (0), 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 02:26:06,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 247 transitions. [2022-07-13 02:26:06,776 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 247 transitions. Word has length 17 [2022-07-13 02:26:06,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:26:06,776 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 247 transitions. [2022-07-13 02:26:06,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:06,777 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 247 transitions. [2022-07-13 02:26:06,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-13 02:26:06,777 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:26:06,777 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:26:06,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-13 02:26:06,778 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-07-13 02:26:06,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:26:06,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1105053419, now seen corresponding path program 6 times [2022-07-13 02:26:06,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:26:06,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412010532] [2022-07-13 02:26:06,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:26:06,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:26:06,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:26:07,120 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 02:26:07,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:26:07,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412010532] [2022-07-13 02:26:07,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412010532] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:26:07,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:26:07,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 02:26:07,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959550781] [2022-07-13 02:26:07,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:26:07,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-13 02:26:07,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:26:07,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-13 02:26:07,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-07-13 02:26:07,122 INFO L87 Difference]: Start difference. First operand 152 states and 247 transitions. Second operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:07,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:26:07,648 INFO L93 Difference]: Finished difference Result 207 states and 331 transitions. [2022-07-13 02:26:07,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 02:26:07,649 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-07-13 02:26:07,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:26:07,650 INFO L225 Difference]: With dead ends: 207 [2022-07-13 02:26:07,650 INFO L226 Difference]: Without dead ends: 207 [2022-07-13 02:26:07,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2022-07-13 02:26:07,651 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 74 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 02:26:07,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 13 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 02:26:07,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-07-13 02:26:07,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 151. [2022-07-13 02:26:07,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 149 states have (on average 1.6442953020134228) internal successors, (245), 150 states have internal predecessors, (245), 0 states have call successors, (0), 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 02:26:07,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 245 transitions. [2022-07-13 02:26:07,656 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 245 transitions. Word has length 17 [2022-07-13 02:26:07,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:26:07,656 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 245 transitions. [2022-07-13 02:26:07,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:07,657 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 245 transitions. [2022-07-13 02:26:07,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-13 02:26:07,657 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:26:07,657 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:26:07,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-13 02:26:07,658 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-07-13 02:26:07,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:26:07,658 INFO L85 PathProgramCache]: Analyzing trace with hash 997657101, now seen corresponding path program 7 times [2022-07-13 02:26:07,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:26:07,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440951939] [2022-07-13 02:26:07,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:26:07,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:26:07,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:26:08,080 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 02:26:08,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:26:08,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440951939] [2022-07-13 02:26:08,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440951939] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:26:08,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:26:08,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-13 02:26:08,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300652804] [2022-07-13 02:26:08,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:26:08,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-13 02:26:08,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:26:08,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-13 02:26:08,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-07-13 02:26:08,082 INFO L87 Difference]: Start difference. First operand 151 states and 245 transitions. Second operand has 14 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:08,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:26:08,792 INFO L93 Difference]: Finished difference Result 201 states and 321 transitions. [2022-07-13 02:26:08,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 02:26:08,792 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-07-13 02:26:08,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:26:08,793 INFO L225 Difference]: With dead ends: 201 [2022-07-13 02:26:08,793 INFO L226 Difference]: Without dead ends: 201 [2022-07-13 02:26:08,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2022-07-13 02:26:08,794 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 91 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 02:26:08,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 13 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 02:26:08,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-07-13 02:26:08,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 126. [2022-07-13 02:26:08,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 124 states have (on average 1.6451612903225807) internal successors, (204), 125 states have internal predecessors, (204), 0 states have call successors, (0), 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 02:26:08,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 204 transitions. [2022-07-13 02:26:08,798 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 204 transitions. Word has length 17 [2022-07-13 02:26:08,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:26:08,799 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 204 transitions. [2022-07-13 02:26:08,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:08,799 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 204 transitions. [2022-07-13 02:26:08,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-13 02:26:08,800 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:26:08,800 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:26:08,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-13 02:26:08,800 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-07-13 02:26:08,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:26:08,801 INFO L85 PathProgramCache]: Analyzing trace with hash -155714608, now seen corresponding path program 1 times [2022-07-13 02:26:08,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:26:08,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776636266] [2022-07-13 02:26:08,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:26:08,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:26:08,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:26:09,117 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 02:26:09,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:26:09,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776636266] [2022-07-13 02:26:09,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776636266] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:26:09,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:26:09,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-13 02:26:09,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937919250] [2022-07-13 02:26:09,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:26:09,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-13 02:26:09,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:26:09,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-13 02:26:09,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-07-13 02:26:09,119 INFO L87 Difference]: Start difference. First operand 126 states and 204 transitions. Second operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:09,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:26:09,976 INFO L93 Difference]: Finished difference Result 267 states and 423 transitions. [2022-07-13 02:26:09,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 02:26:09,976 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-07-13 02:26:09,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:26:09,977 INFO L225 Difference]: With dead ends: 267 [2022-07-13 02:26:09,977 INFO L226 Difference]: Without dead ends: 233 [2022-07-13 02:26:09,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=179, Invalid=421, Unknown=0, NotChecked=0, Total=600 [2022-07-13 02:26:09,978 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 147 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 02:26:09,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 8 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 02:26:09,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-07-13 02:26:09,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 141. [2022-07-13 02:26:09,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 139 states have (on average 1.6402877697841727) internal successors, (228), 140 states have internal predecessors, (228), 0 states have call successors, (0), 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 02:26:09,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 228 transitions. [2022-07-13 02:26:09,983 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 228 transitions. Word has length 18 [2022-07-13 02:26:09,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:26:09,983 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 228 transitions. [2022-07-13 02:26:09,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:09,984 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 228 transitions. [2022-07-13 02:26:09,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-13 02:26:09,984 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:26:09,985 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:26:09,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-13 02:26:09,985 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-07-13 02:26:09,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:26:09,985 INFO L85 PathProgramCache]: Analyzing trace with hash 603802072, now seen corresponding path program 2 times [2022-07-13 02:26:09,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:26:09,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894640535] [2022-07-13 02:26:09,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:26:09,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:26:10,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:26:10,378 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 02:26:10,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:26:10,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894640535] [2022-07-13 02:26:10,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894640535] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:26:10,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:26:10,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-13 02:26:10,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968504192] [2022-07-13 02:26:10,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:26:10,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-13 02:26:10,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:26:10,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-13 02:26:10,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2022-07-13 02:26:10,380 INFO L87 Difference]: Start difference. First operand 141 states and 228 transitions. Second operand has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:11,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:26:11,296 INFO L93 Difference]: Finished difference Result 273 states and 431 transitions. [2022-07-13 02:26:11,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 02:26:11,297 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-07-13 02:26:11,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:26:11,298 INFO L225 Difference]: With dead ends: 273 [2022-07-13 02:26:11,298 INFO L226 Difference]: Without dead ends: 233 [2022-07-13 02:26:11,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=191, Invalid=459, Unknown=0, NotChecked=0, Total=650 [2022-07-13 02:26:11,299 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 176 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 02:26:11,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 8 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 02:26:11,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-07-13 02:26:11,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 143. [2022-07-13 02:26:11,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 141 states have (on average 1.6382978723404256) internal successors, (231), 142 states have internal predecessors, (231), 0 states have call successors, (0), 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 02:26:11,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 231 transitions. [2022-07-13 02:26:11,304 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 231 transitions. Word has length 18 [2022-07-13 02:26:11,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:26:11,304 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 231 transitions. [2022-07-13 02:26:11,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:11,304 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 231 transitions. [2022-07-13 02:26:11,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-13 02:26:11,305 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:26:11,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:26:11,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-13 02:26:11,305 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-07-13 02:26:11,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:26:11,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1939807408, now seen corresponding path program 3 times [2022-07-13 02:26:11,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:26:11,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752830774] [2022-07-13 02:26:11,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:26:11,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:26:11,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:26:11,697 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 02:26:11,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:26:11,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752830774] [2022-07-13 02:26:11,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752830774] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:26:11,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:26:11,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-13 02:26:11,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188138677] [2022-07-13 02:26:11,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:26:11,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-13 02:26:11,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:26:11,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-13 02:26:11,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-07-13 02:26:11,699 INFO L87 Difference]: Start difference. First operand 143 states and 231 transitions. Second operand has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:12,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:26:12,694 INFO L93 Difference]: Finished difference Result 201 states and 318 transitions. [2022-07-13 02:26:12,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-13 02:26:12,695 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-07-13 02:26:12,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:26:12,696 INFO L225 Difference]: With dead ends: 201 [2022-07-13 02:26:12,696 INFO L226 Difference]: Without dead ends: 165 [2022-07-13 02:26:12,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=157, Invalid=395, Unknown=0, NotChecked=0, Total=552 [2022-07-13 02:26:12,696 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 110 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 02:26:12,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 6 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-13 02:26:12,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-07-13 02:26:12,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 143. [2022-07-13 02:26:12,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 141 states have (on average 1.6312056737588652) internal successors, (230), 142 states have internal predecessors, (230), 0 states have call successors, (0), 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 02:26:12,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 230 transitions. [2022-07-13 02:26:12,700 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 230 transitions. Word has length 18 [2022-07-13 02:26:12,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:26:12,700 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 230 transitions. [2022-07-13 02:26:12,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:12,701 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 230 transitions. [2022-07-13 02:26:12,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-13 02:26:12,701 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:26:12,701 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:26:12,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-13 02:26:12,702 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-07-13 02:26:12,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:26:12,702 INFO L85 PathProgramCache]: Analyzing trace with hash -50469104, now seen corresponding path program 4 times [2022-07-13 02:26:12,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:26:12,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942059749] [2022-07-13 02:26:12,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:26:12,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:26:12,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:26:13,109 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 02:26:13,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:26:13,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942059749] [2022-07-13 02:26:13,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942059749] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:26:13,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:26:13,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-13 02:26:13,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60598261] [2022-07-13 02:26:13,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:26:13,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-13 02:26:13,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:26:13,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-13 02:26:13,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-07-13 02:26:13,111 INFO L87 Difference]: Start difference. First operand 143 states and 230 transitions. Second operand has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:14,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:26:14,239 INFO L93 Difference]: Finished difference Result 239 states and 375 transitions. [2022-07-13 02:26:14,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-13 02:26:14,239 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-07-13 02:26:14,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:26:14,240 INFO L225 Difference]: With dead ends: 239 [2022-07-13 02:26:14,240 INFO L226 Difference]: Without dead ends: 197 [2022-07-13 02:26:14,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=236, Invalid=520, Unknown=0, NotChecked=0, Total=756 [2022-07-13 02:26:14,241 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 146 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 02:26:14,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 6 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 02:26:14,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-07-13 02:26:14,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 166. [2022-07-13 02:26:14,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 164 states have (on average 1.6219512195121952) internal successors, (266), 165 states have internal predecessors, (266), 0 states have call successors, (0), 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 02:26:14,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 266 transitions. [2022-07-13 02:26:14,247 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 266 transitions. Word has length 18 [2022-07-13 02:26:14,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:26:14,247 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 266 transitions. [2022-07-13 02:26:14,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:14,247 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 266 transitions. [2022-07-13 02:26:14,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-13 02:26:14,248 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:26:14,248 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:26:14,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-13 02:26:14,248 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-07-13 02:26:14,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:26:14,249 INFO L85 PathProgramCache]: Analyzing trace with hash 103080716, now seen corresponding path program 5 times [2022-07-13 02:26:14,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:26:14,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145223949] [2022-07-13 02:26:14,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:26:14,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:26:14,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:26:14,721 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 02:26:14,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:26:14,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145223949] [2022-07-13 02:26:14,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145223949] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:26:14,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:26:14,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-13 02:26:14,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952601419] [2022-07-13 02:26:14,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:26:14,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-13 02:26:14,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:26:14,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-13 02:26:14,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-07-13 02:26:14,723 INFO L87 Difference]: Start difference. First operand 166 states and 266 transitions. Second operand has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:15,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:26:15,516 INFO L93 Difference]: Finished difference Result 258 states and 405 transitions. [2022-07-13 02:26:15,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-13 02:26:15,517 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-07-13 02:26:15,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:26:15,518 INFO L225 Difference]: With dead ends: 258 [2022-07-13 02:26:15,518 INFO L226 Difference]: Without dead ends: 224 [2022-07-13 02:26:15,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=162, Invalid=390, Unknown=0, NotChecked=0, Total=552 [2022-07-13 02:26:15,519 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 146 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 02:26:15,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 12 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 02:26:15,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-07-13 02:26:15,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 164. [2022-07-13 02:26:15,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 162 states have (on average 1.617283950617284) internal successors, (262), 163 states have internal predecessors, (262), 0 states have call successors, (0), 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 02:26:15,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 262 transitions. [2022-07-13 02:26:15,524 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 262 transitions. Word has length 18 [2022-07-13 02:26:15,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:26:15,527 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 262 transitions. [2022-07-13 02:26:15,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:15,527 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 262 transitions. [2022-07-13 02:26:15,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-13 02:26:15,528 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:26:15,529 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:26:15,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-13 02:26:15,529 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-07-13 02:26:15,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:26:15,530 INFO L85 PathProgramCache]: Analyzing trace with hash 862597396, now seen corresponding path program 6 times [2022-07-13 02:26:15,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:26:15,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886640269] [2022-07-13 02:26:15,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:26:15,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:26:15,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:26:16,017 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 02:26:16,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:26:16,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886640269] [2022-07-13 02:26:16,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886640269] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:26:16,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:26:16,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-13 02:26:16,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012660586] [2022-07-13 02:26:16,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:26:16,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-13 02:26:16,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:26:16,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-13 02:26:16,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2022-07-13 02:26:16,020 INFO L87 Difference]: Start difference. First operand 164 states and 262 transitions. Second operand has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:16,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:26:16,743 INFO L93 Difference]: Finished difference Result 248 states and 390 transitions. [2022-07-13 02:26:16,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-13 02:26:16,743 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-07-13 02:26:16,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:26:16,744 INFO L225 Difference]: With dead ends: 248 [2022-07-13 02:26:16,744 INFO L226 Difference]: Without dead ends: 208 [2022-07-13 02:26:16,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2022-07-13 02:26:16,745 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 126 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 02:26:16,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 10 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 02:26:16,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-07-13 02:26:16,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 135. [2022-07-13 02:26:16,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 133 states have (on average 1.6165413533834587) internal successors, (215), 134 states have internal predecessors, (215), 0 states have call successors, (0), 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 02:26:16,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 215 transitions. [2022-07-13 02:26:16,749 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 215 transitions. Word has length 18 [2022-07-13 02:26:16,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:26:16,750 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 215 transitions. [2022-07-13 02:26:16,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:16,750 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 215 transitions. [2022-07-13 02:26:16,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-13 02:26:16,750 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:26:16,751 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:26:16,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-13 02:26:16,751 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-07-13 02:26:16,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:26:16,751 INFO L85 PathProgramCache]: Analyzing trace with hash -364996327, now seen corresponding path program 1 times [2022-07-13 02:26:16,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:26:16,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206111463] [2022-07-13 02:26:16,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:26:16,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:26:16,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:26:17,068 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 02:26:17,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:26:17,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206111463] [2022-07-13 02:26:17,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206111463] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:26:17,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:26:17,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-13 02:26:17,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965586306] [2022-07-13 02:26:17,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:26:17,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-13 02:26:17,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:26:17,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-13 02:26:17,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-07-13 02:26:17,070 INFO L87 Difference]: Start difference. First operand 135 states and 215 transitions. Second operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:17,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:26:17,848 INFO L93 Difference]: Finished difference Result 212 states and 333 transitions. [2022-07-13 02:26:17,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-13 02:26:17,849 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-13 02:26:17,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:26:17,849 INFO L225 Difference]: With dead ends: 212 [2022-07-13 02:26:17,849 INFO L226 Difference]: Without dead ends: 111 [2022-07-13 02:26:17,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=245, Invalid=625, Unknown=0, NotChecked=0, Total=870 [2022-07-13 02:26:17,850 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 193 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 02:26:17,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 10 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 02:26:17,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-07-13 02:26:17,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 103. [2022-07-13 02:26:17,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 101 states have (on average 1.603960396039604) internal successors, (162), 102 states have internal predecessors, (162), 0 states have call successors, (0), 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 02:26:17,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 162 transitions. [2022-07-13 02:26:17,854 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 162 transitions. Word has length 19 [2022-07-13 02:26:17,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:26:17,854 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 162 transitions. [2022-07-13 02:26:17,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:17,854 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 162 transitions. [2022-07-13 02:26:17,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-13 02:26:17,855 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:26:17,855 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:26:17,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-13 02:26:17,855 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-07-13 02:26:17,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:26:17,856 INFO L85 PathProgramCache]: Analyzing trace with hash -932275875, now seen corresponding path program 2 times [2022-07-13 02:26:17,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:26:17,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069198317] [2022-07-13 02:26:17,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:26:17,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:26:17,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:26:18,286 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 02:26:18,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:26:18,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069198317] [2022-07-13 02:26:18,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069198317] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:26:18,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:26:18,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-13 02:26:18,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260148963] [2022-07-13 02:26:18,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:26:18,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-13 02:26:18,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:26:18,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-13 02:26:18,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-07-13 02:26:18,288 INFO L87 Difference]: Start difference. First operand 103 states and 162 transitions. Second operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:19,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:26:19,267 INFO L93 Difference]: Finished difference Result 199 states and 307 transitions. [2022-07-13 02:26:19,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-13 02:26:19,267 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-13 02:26:19,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:26:19,268 INFO L225 Difference]: With dead ends: 199 [2022-07-13 02:26:19,268 INFO L226 Difference]: Without dead ends: 133 [2022-07-13 02:26:19,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=212, Invalid=544, Unknown=0, NotChecked=0, Total=756 [2022-07-13 02:26:19,268 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 186 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 02:26:19,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 5 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 02:26:19,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-07-13 02:26:19,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 101. [2022-07-13 02:26:19,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 99 states have (on average 1.5656565656565657) internal successors, (155), 100 states have internal predecessors, (155), 0 states have call successors, (0), 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 02:26:19,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 155 transitions. [2022-07-13 02:26:19,271 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 155 transitions. Word has length 19 [2022-07-13 02:26:19,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:26:19,271 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 155 transitions. [2022-07-13 02:26:19,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:19,272 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 155 transitions. [2022-07-13 02:26:19,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-13 02:26:19,272 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:26:19,272 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:26:19,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-13 02:26:19,273 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-07-13 02:26:19,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:26:19,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1105594723, now seen corresponding path program 3 times [2022-07-13 02:26:19,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:26:19,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943834017] [2022-07-13 02:26:19,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:26:19,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:26:19,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:26:19,706 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 02:26:19,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:26:19,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943834017] [2022-07-13 02:26:19,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943834017] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:26:19,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:26:19,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-13 02:26:19,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876712285] [2022-07-13 02:26:19,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:26:19,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-13 02:26:19,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:26:19,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-13 02:26:19,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-07-13 02:26:19,708 INFO L87 Difference]: Start difference. First operand 101 states and 155 transitions. Second operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:20,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:26:20,525 INFO L93 Difference]: Finished difference Result 115 states and 168 transitions. [2022-07-13 02:26:20,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-13 02:26:20,525 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-13 02:26:20,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:26:20,526 INFO L225 Difference]: With dead ends: 115 [2022-07-13 02:26:20,526 INFO L226 Difference]: Without dead ends: 63 [2022-07-13 02:26:20,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=204, Invalid=498, Unknown=0, NotChecked=0, Total=702 [2022-07-13 02:26:20,527 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 150 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 02:26:20,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 8 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 02:26:20,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-07-13 02:26:20,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-07-13 02:26:20,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 61 states have (on average 1.4262295081967213) internal successors, (87), 62 states have internal predecessors, (87), 0 states have call successors, (0), 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 02:26:20,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 87 transitions. [2022-07-13 02:26:20,529 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 87 transitions. Word has length 19 [2022-07-13 02:26:20,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:26:20,529 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 87 transitions. [2022-07-13 02:26:20,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:20,530 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 87 transitions. [2022-07-13 02:26:20,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-13 02:26:20,530 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:26:20,530 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:26:20,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-13 02:26:20,531 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-07-13 02:26:20,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:26:20,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1464796014, now seen corresponding path program 1 times [2022-07-13 02:26:20,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:26:20,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038298960] [2022-07-13 02:26:20,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:26:20,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:26:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:26:20,989 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 02:26:20,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:26:20,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038298960] [2022-07-13 02:26:20,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038298960] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:26:20,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:26:20,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-13 02:26:20,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810572228] [2022-07-13 02:26:20,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:26:20,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-13 02:26:20,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:26:20,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-13 02:26:20,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-07-13 02:26:20,991 INFO L87 Difference]: Start difference. First operand 63 states and 87 transitions. Second operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 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 02:26:21,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:26:21,554 INFO L93 Difference]: Finished difference Result 82 states and 112 transitions. [2022-07-13 02:26:21,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-13 02:26:21,554 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-07-13 02:26:21,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:26:21,555 INFO L225 Difference]: With dead ends: 82 [2022-07-13 02:26:21,555 INFO L226 Difference]: Without dead ends: 56 [2022-07-13 02:26:21,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=132, Invalid=420, Unknown=0, NotChecked=0, Total=552 [2022-07-13 02:26:21,556 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 70 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 02:26:21,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 4 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 02:26:21,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-07-13 02:26:21,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 55. [2022-07-13 02:26:21,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 53 states have (on average 1.3396226415094339) internal successors, (71), 54 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:21,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 71 transitions. [2022-07-13 02:26:21,558 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 71 transitions. Word has length 23 [2022-07-13 02:26:21,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:26:21,558 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 71 transitions. [2022-07-13 02:26:21,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 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 02:26:21,559 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 71 transitions. [2022-07-13 02:26:21,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-13 02:26:21,559 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:26:21,559 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:26:21,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-13 02:26:21,560 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-07-13 02:26:21,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:26:21,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1186435490, now seen corresponding path program 2 times [2022-07-13 02:26:21,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:26:21,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286355495] [2022-07-13 02:26:21,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:26:21,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:26:21,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:26:21,986 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 02:26:21,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:26:21,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286355495] [2022-07-13 02:26:21,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286355495] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:26:21,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:26:21,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-13 02:26:21,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765696547] [2022-07-13 02:26:21,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:26:21,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-13 02:26:21,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:26:21,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-13 02:26:21,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-07-13 02:26:21,987 INFO L87 Difference]: Start difference. First operand 55 states and 71 transitions. Second operand has 14 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 13 states have internal predecessors, (23), 0 states have call successors, (0), 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 02:26:22,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:26:22,536 INFO L93 Difference]: Finished difference Result 61 states and 74 transitions. [2022-07-13 02:26:22,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-13 02:26:22,536 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 13 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-07-13 02:26:22,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:26:22,537 INFO L225 Difference]: With dead ends: 61 [2022-07-13 02:26:22,537 INFO L226 Difference]: Without dead ends: 28 [2022-07-13 02:26:22,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=127, Invalid=379, Unknown=0, NotChecked=0, Total=506 [2022-07-13 02:26:22,538 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 78 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 02:26:22,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 4 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 02:26:22,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-07-13 02:26:22,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-07-13 02:26:22,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 27 states have internal predecessors, (28), 0 states have call successors, (0), 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 02:26:22,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2022-07-13 02:26:22,539 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 23 [2022-07-13 02:26:22,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:26:22,539 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2022-07-13 02:26:22,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 13 states have internal predecessors, (23), 0 states have call successors, (0), 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 02:26:22,540 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2022-07-13 02:26:22,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-13 02:26:22,540 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:26:22,540 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:26:22,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-13 02:26:22,541 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-07-13 02:26:22,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:26:22,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1370891565, now seen corresponding path program 1 times [2022-07-13 02:26:22,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:26:22,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257480692] [2022-07-13 02:26:22,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:26:22,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:26:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:26:22,805 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 02:26:22,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:26:22,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257480692] [2022-07-13 02:26:22,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257480692] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:26:22,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:26:22,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 02:26:22,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221763818] [2022-07-13 02:26:22,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:26:22,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-13 02:26:22,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:26:22,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-13 02:26:22,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-07-13 02:26:22,807 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand has 13 states, 12 states have (on average 2.0) internal successors, (24), 12 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 02:26:23,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:26:23,230 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2022-07-13 02:26:23,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 02:26:23,230 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.0) internal successors, (24), 12 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 24 [2022-07-13 02:26:23,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:26:23,231 INFO L225 Difference]: With dead ends: 26 [2022-07-13 02:26:23,231 INFO L226 Difference]: Without dead ends: 0 [2022-07-13 02:26:23,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-07-13 02:26:23,231 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 41 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 02:26:23,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 2 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 02:26:23,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-13 02:26:23,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-13 02:26:23,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:26:23,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-13 02:26:23,233 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2022-07-13 02:26:23,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:26:23,233 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 02:26:23,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.0) internal successors, (24), 12 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 02:26:23,233 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-13 02:26:23,233 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-13 02:26:23,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2022-07-13 02:26:23,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 5 remaining) [2022-07-13 02:26:23,238 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 5 remaining) [2022-07-13 02:26:23,239 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 5 remaining) [2022-07-13 02:26:23,239 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 5 remaining) [2022-07-13 02:26:23,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-13 02:26:23,241 INFO L356 BasicCegarLoop]: Path program histogram: [7, 6, 3, 2, 2, 1, 1, 1] [2022-07-13 02:26:23,246 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-13 02:26:23,246 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 02:26:23,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 02:26:23 BasicIcfg [2022-07-13 02:26:23,250 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 02:26:23,251 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 02:26:23,251 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 02:26:23,251 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 02:26:23,251 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:24:53" (3/4) ... [2022-07-13 02:26:23,254 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-13 02:26:23,260 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-07-13 02:26:23,265 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-07-13 02:26:23,266 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-07-13 02:26:23,266 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-13 02:26:23,266 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 02:26:23,301 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 02:26:23,302 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 02:26:23,303 INFO L158 Benchmark]: Toolchain (without parser) took 91270.53ms. Allocated memory was 111.1MB in the beginning and 167.8MB in the end (delta: 56.6MB). Free memory was 71.0MB in the beginning and 86.0MB in the end (delta: -15.0MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. [2022-07-13 02:26:23,304 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 111.1MB. Free memory is still 89.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 02:26:23,304 INFO L158 Benchmark]: CACSL2BoogieTranslator took 646.41ms. Allocated memory is still 111.1MB. Free memory was 70.8MB in the beginning and 57.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-13 02:26:23,304 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.55ms. Allocated memory is still 111.1MB. Free memory was 57.6MB in the beginning and 54.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-13 02:26:23,304 INFO L158 Benchmark]: Boogie Preprocessor took 25.15ms. Allocated memory is still 111.1MB. Free memory was 54.5MB in the beginning and 52.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 02:26:23,305 INFO L158 Benchmark]: RCFGBuilder took 548.99ms. Allocated memory is still 111.1MB. Free memory was 52.7MB in the beginning and 76.7MB in the end (delta: -23.9MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2022-07-13 02:26:23,305 INFO L158 Benchmark]: TraceAbstraction took 89913.85ms. Allocated memory was 111.1MB in the beginning and 167.8MB in the end (delta: 56.6MB). Free memory was 76.2MB in the beginning and 89.1MB in the end (delta: -13.0MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. [2022-07-13 02:26:23,305 INFO L158 Benchmark]: Witness Printer took 51.27ms. Allocated memory is still 167.8MB. Free memory was 88.1MB in the beginning and 86.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 02:26:23,313 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 111.1MB. Free memory is still 89.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 646.41ms. Allocated memory is still 111.1MB. Free memory was 70.8MB in the beginning and 57.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.55ms. Allocated memory is still 111.1MB. Free memory was 57.6MB in the beginning and 54.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.15ms. Allocated memory is still 111.1MB. Free memory was 54.5MB in the beginning and 52.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 548.99ms. Allocated memory is still 111.1MB. Free memory was 52.7MB in the beginning and 76.7MB in the end (delta: -23.9MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * TraceAbstraction took 89913.85ms. Allocated memory was 111.1MB in the beginning and 167.8MB in the end (delta: 56.6MB). Free memory was 76.2MB in the beginning and 89.1MB in the end (delta: -13.0MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. * Witness Printer took 51.27ms. Allocated memory is still 167.8MB. Free memory was 88.1MB in the beginning and 86.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 63.7s, 141 PlacesBefore, 35 PlacesAfterwards, 139 TransitionsBefore, 33 TransitionsAfterwards, 3900 CoEnabledTransitionPairs, 7 FixpointIterations, 47 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 113 TotalNumberOfCompositions, 8455 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3713, positive: 3372, positive conditional: 0, positive unconditional: 3372, negative: 341, negative conditional: 0, negative unconditional: 341, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2545, positive: 2441, positive conditional: 0, positive unconditional: 2441, negative: 104, negative conditional: 0, negative unconditional: 104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2545, positive: 2412, positive conditional: 0, positive unconditional: 2412, negative: 133, negative conditional: 0, negative unconditional: 133, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 133, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 87, negative conditional: 0, negative unconditional: 87, unknown: 17, unknown conditional: 0, unknown unconditional: 17] , SemanticIndependenceRelation.Query Time [ms]: [ total: 50447, positive: 192, positive conditional: 0, positive unconditional: 192, negative: 670, negative conditional: 0, negative unconditional: 670, unknown: 49586, unknown conditional: 0, unknown unconditional: 49586] ], Cache Queries: [ total: 3713, positive: 931, positive conditional: 0, positive unconditional: 931, negative: 237, negative conditional: 0, negative unconditional: 237, unknown: 2545, unknown conditional: 0, unknown unconditional: 2545] , Statistics on independence cache: Total cache size (in pairs): 186, Positive cache size: 133, Positive conditional cache size: 0, Positive unconditional cache size: 133, Negative cache size: 53, Negative conditional cache size: 0, Negative unconditional cache size: 53 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1244]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1244]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 179 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 89.8s, OverallIterations: 23, TraceHistogramMax: 1, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 16.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 63.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2590 SdHoareTripleChecker+Valid, 8.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2590 mSDsluCounter, 171 SdHoareTripleChecker+Invalid, 7.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2539 mSDsCounter, 1077 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8933 IncrementalHoareTripleChecker+Invalid, 10010 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1077 mSolverCounterUnsat, 54 mSDtfsCounter, 8933 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 456 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 453 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 11.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=212occurred in iteration=1, InterpolantAutomatonStates: 280, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 23 MinimizatonAttempts, 1167 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 7.6s InterpolantComputationTime, 407 NumberOfCodeBlocks, 407 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 384 ConstructedInterpolants, 0 QuantifiedInterpolants, 6793 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 23 InterpolantComputations, 23 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-07-13 02:26:23,402 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE