./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 35987657 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/uthash-2.0.2/uthash_FNV_test1-1.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 72c3cbe0b435a963730c7c79c0d825f3c978c53ad7cc61822ef9417e2e6ee67f --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 00:57:04,619 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 00:57:04,623 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 00:57:04,668 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 00:57:04,669 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 00:57:04,671 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 00:57:04,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 00:57:04,678 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 00:57:04,689 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 00:57:04,694 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 00:57:04,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 00:57:04,701 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 00:57:04,701 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 00:57:04,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 00:57:04,705 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 00:57:04,709 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 00:57:04,710 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 00:57:04,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 00:57:04,713 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 00:57:04,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 00:57:04,720 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 00:57:04,722 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 00:57:04,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 00:57:04,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 00:57:04,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 00:57:04,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 00:57:04,733 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 00:57:04,733 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 00:57:04,734 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 00:57:04,735 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 00:57:04,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 00:57:04,736 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 00:57:04,738 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 00:57:04,739 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 00:57:04,740 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 00:57:04,741 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 00:57:04,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 00:57:04,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 00:57:04,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 00:57:04,742 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 00:57:04,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 00:57:04,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 00:57:04,752 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-22 00:57:04,785 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 00:57:04,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 00:57:04,786 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 00:57:04,786 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 00:57:04,787 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 00:57:04,787 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 00:57:04,788 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 00:57:04,788 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 00:57:04,789 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 00:57:04,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 00:57:04,790 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 00:57:04,790 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 00:57:04,790 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 00:57:04,790 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 00:57:04,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 00:57:04,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 00:57:04,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 00:57:04,792 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 00:57:04,792 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-22 00:57:04,792 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 00:57:04,792 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 00:57:04,792 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 00:57:04,793 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 00:57:04,793 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 00:57:04,793 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 00:57:04,793 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 00:57:04,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 00:57:04,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 00:57:04,794 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 00:57:04,794 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 00:57:04,795 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 00:57:04,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 00:57:04,795 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 00:57:04,796 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72c3cbe0b435a963730c7c79c0d825f3c978c53ad7cc61822ef9417e2e6ee67f [2022-07-22 00:57:05,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 00:57:05,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 00:57:05,170 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 00:57:05,171 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 00:57:05,172 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 00:57:05,173 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i [2022-07-22 00:57:05,240 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1e93c52d/2b50534bd6bd463899807af163f0da9d/FLAG04c9c21b7 [2022-07-22 00:57:05,803 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 00:57:05,804 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i [2022-07-22 00:57:05,819 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1e93c52d/2b50534bd6bd463899807af163f0da9d/FLAG04c9c21b7 [2022-07-22 00:57:06,073 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1e93c52d/2b50534bd6bd463899807af163f0da9d [2022-07-22 00:57:06,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 00:57:06,077 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 00:57:06,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 00:57:06,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 00:57:06,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 00:57:06,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:57:06" (1/1) ... [2022-07-22 00:57:06,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20d255f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:57:06, skipping insertion in model container [2022-07-22 00:57:06,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:57:06" (1/1) ... [2022-07-22 00:57:06,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 00:57:06,152 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 00:57:06,459 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i[33021,33034] [2022-07-22 00:57:06,519 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 00:57:06,526 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 00:57:06,554 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i[33021,33034] [2022-07-22 00:57:06,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 00:57:06,657 INFO L208 MainTranslator]: Completed translation [2022-07-22 00:57:06,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:57:06 WrapperNode [2022-07-22 00:57:06,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 00:57:06,658 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 00:57:06,658 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 00:57:06,658 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 00:57:06,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:57:06" (1/1) ... [2022-07-22 00:57:06,703 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:57:06" (1/1) ... [2022-07-22 00:57:06,766 INFO L137 Inliner]: procedures = 177, calls = 186, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 627 [2022-07-22 00:57:06,775 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 00:57:06,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 00:57:06,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 00:57:06,777 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 00:57:06,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:57:06" (1/1) ... [2022-07-22 00:57:06,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:57:06" (1/1) ... [2022-07-22 00:57:06,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:57:06" (1/1) ... [2022-07-22 00:57:06,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:57:06" (1/1) ... [2022-07-22 00:57:06,825 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:57:06" (1/1) ... [2022-07-22 00:57:06,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:57:06" (1/1) ... [2022-07-22 00:57:06,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:57:06" (1/1) ... [2022-07-22 00:57:06,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 00:57:06,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 00:57:06,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 00:57:06,844 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 00:57:06,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:57:06" (1/1) ... [2022-07-22 00:57:06,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 00:57:06,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:57:06,888 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) [2022-07-22 00:57:06,890 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 [2022-07-22 00:57:06,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 00:57:06,926 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-22 00:57:06,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-22 00:57:06,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 00:57:06,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-22 00:57:06,926 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-22 00:57:06,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 00:57:06,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 00:57:06,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 00:57:06,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 00:57:06,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-22 00:57:06,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 00:57:06,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 00:57:06,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 00:57:06,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 00:57:07,126 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 00:57:07,128 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 00:57:08,190 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 00:57:08,202 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 00:57:08,202 INFO L299 CfgBuilder]: Removed 31 assume(true) statements. [2022-07-22 00:57:08,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:57:08 BoogieIcfgContainer [2022-07-22 00:57:08,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 00:57:08,206 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 00:57:08,207 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 00:57:08,209 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 00:57:08,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 12:57:06" (1/3) ... [2022-07-22 00:57:08,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb292c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:57:08, skipping insertion in model container [2022-07-22 00:57:08,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:57:06" (2/3) ... [2022-07-22 00:57:08,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb292c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:57:08, skipping insertion in model container [2022-07-22 00:57:08,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:57:08" (3/3) ... [2022-07-22 00:57:08,217 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test1-1.i [2022-07-22 00:57:08,231 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 00:57:08,232 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-22 00:57:08,302 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 00:57:08,308 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@6edcb3fc, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1783a766 [2022-07-22 00:57:08,308 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-07-22 00:57:08,314 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 116 states have (on average 1.6810344827586208) internal successors, (195), 132 states have internal predecessors, (195), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-07-22 00:57:08,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-22 00:57:08,318 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:57:08,319 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-22 00:57:08,319 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:57:08,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:57:08,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1126635289, now seen corresponding path program 1 times [2022-07-22 00:57:08,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:57:08,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149345610] [2022-07-22 00:57:08,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:57:08,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:57:08,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:57:08,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:57:08,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:57:08,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149345610] [2022-07-22 00:57:08,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149345610] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:57:08,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:57:08,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 00:57:08,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408927444] [2022-07-22 00:57:08,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:57:08,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 00:57:08,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:57:08,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 00:57:08,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:57:08,539 INFO L87 Difference]: Start difference. First operand has 138 states, 116 states have (on average 1.6810344827586208) internal successors, (195), 132 states have internal predecessors, (195), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:57:08,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:57:08,627 INFO L93 Difference]: Finished difference Result 366 states and 607 transitions. [2022-07-22 00:57:08,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 00:57:08,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-07-22 00:57:08,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:57:08,640 INFO L225 Difference]: With dead ends: 366 [2022-07-22 00:57:08,640 INFO L226 Difference]: Without dead ends: 226 [2022-07-22 00:57:08,644 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 [2022-07-22 00:57:08,647 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 113 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:57:08,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 386 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:57:08,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-07-22 00:57:08,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 137. [2022-07-22 00:57:08,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 117 states have (on average 1.3504273504273505) internal successors, (158), 131 states have internal predecessors, (158), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-07-22 00:57:08,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 184 transitions. [2022-07-22 00:57:08,696 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 184 transitions. Word has length 6 [2022-07-22 00:57:08,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:57:08,696 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 184 transitions. [2022-07-22 00:57:08,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:57:08,697 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 184 transitions. [2022-07-22 00:57:08,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-22 00:57:08,699 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:57:08,700 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:57:08,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 00:57:08,700 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:57:08,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:57:08,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1116651610, now seen corresponding path program 1 times [2022-07-22 00:57:08,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:57:08,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265910289] [2022-07-22 00:57:08,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:57:08,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:57:08,870 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:57:08,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [172092110] [2022-07-22 00:57:08,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:57:08,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:57:08,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:57:08,875 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:57:08,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 00:57:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:57:09,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 1517 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 00:57:09,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:57:09,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:57:09,596 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:57:09,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:57:09,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265910289] [2022-07-22 00:57:09,597 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:57:09,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172092110] [2022-07-22 00:57:09,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172092110] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:57:09,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:57:09,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 00:57:09,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161603608] [2022-07-22 00:57:09,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:57:09,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 00:57:09,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:57:09,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 00:57:09,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:57:09,602 INFO L87 Difference]: Start difference. First operand 137 states and 184 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:57:09,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:57:09,710 INFO L93 Difference]: Finished difference Result 289 states and 393 transitions. [2022-07-22 00:57:09,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 00:57:09,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2022-07-22 00:57:09,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:57:09,713 INFO L225 Difference]: With dead ends: 289 [2022-07-22 00:57:09,713 INFO L226 Difference]: Without dead ends: 158 [2022-07-22 00:57:09,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:57:09,715 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 9 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:57:09,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 305 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:57:09,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-07-22 00:57:09,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 157. [2022-07-22 00:57:09,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 137 states have (on average 1.2992700729927007) internal successors, (178), 151 states have internal predecessors, (178), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-07-22 00:57:09,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 204 transitions. [2022-07-22 00:57:09,731 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 204 transitions. Word has length 56 [2022-07-22 00:57:09,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:57:09,732 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 204 transitions. [2022-07-22 00:57:09,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:57:09,732 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 204 transitions. [2022-07-22 00:57:09,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-22 00:57:09,734 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:57:09,734 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:57:09,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 00:57:09,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:57:09,960 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:57:09,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:57:09,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1391411224, now seen corresponding path program 1 times [2022-07-22 00:57:09,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:57:09,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403897364] [2022-07-22 00:57:09,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:57:09,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:57:10,097 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:57:10,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1013868] [2022-07-22 00:57:10,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:57:10,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:57:10,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:57:10,104 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:57:10,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 00:57:10,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:57:10,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 1519 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 00:57:10,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:57:10,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:57:10,770 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:57:10,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:57:10,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403897364] [2022-07-22 00:57:10,771 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:57:10,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013868] [2022-07-22 00:57:10,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013868] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:57:10,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:57:10,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 00:57:10,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066802480] [2022-07-22 00:57:10,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:57:10,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 00:57:10,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:57:10,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 00:57:10,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 00:57:10,774 INFO L87 Difference]: Start difference. First operand 157 states and 204 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:57:10,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:57:10,848 INFO L93 Difference]: Finished difference Result 299 states and 393 transitions. [2022-07-22 00:57:10,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 00:57:10,848 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2022-07-22 00:57:10,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:57:10,850 INFO L225 Difference]: With dead ends: 299 [2022-07-22 00:57:10,851 INFO L226 Difference]: Without dead ends: 148 [2022-07-22 00:57:10,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 00:57:10,853 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 135 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:57:10,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 339 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:57:10,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-07-22 00:57:10,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 143. [2022-07-22 00:57:10,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 123 states have (on average 1.2764227642276422) internal successors, (157), 137 states have internal predecessors, (157), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-07-22 00:57:10,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 183 transitions. [2022-07-22 00:57:10,866 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 183 transitions. Word has length 56 [2022-07-22 00:57:10,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:57:10,867 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 183 transitions. [2022-07-22 00:57:10,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:57:10,867 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 183 transitions. [2022-07-22 00:57:10,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-22 00:57:10,869 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:57:10,869 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:57:10,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 00:57:11,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-07-22 00:57:11,096 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:57:11,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:57:11,097 INFO L85 PathProgramCache]: Analyzing trace with hash 632524954, now seen corresponding path program 1 times [2022-07-22 00:57:11,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:57:11,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243045138] [2022-07-22 00:57:11,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:57:11,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:57:11,210 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:57:11,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [266788172] [2022-07-22 00:57:11,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:57:11,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:57:11,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:57:11,212 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:57:11,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 00:57:11,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:57:11,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 1505 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 00:57:11,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:57:12,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:57:12,020 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:57:12,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:57:12,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243045138] [2022-07-22 00:57:12,020 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:57:12,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266788172] [2022-07-22 00:57:12,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [266788172] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:57:12,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:57:12,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 00:57:12,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302085350] [2022-07-22 00:57:12,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:57:12,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 00:57:12,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:57:12,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 00:57:12,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 00:57:12,025 INFO L87 Difference]: Start difference. First operand 143 states and 183 transitions. Second operand has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:57:12,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:57:12,068 INFO L93 Difference]: Finished difference Result 238 states and 298 transitions. [2022-07-22 00:57:12,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 00:57:12,069 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2022-07-22 00:57:12,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:57:12,072 INFO L225 Difference]: With dead ends: 238 [2022-07-22 00:57:12,072 INFO L226 Difference]: Without dead ends: 237 [2022-07-22 00:57:12,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 00:57:12,073 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 55 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:57:12,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 498 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:57:12,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-07-22 00:57:12,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 235. [2022-07-22 00:57:12,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 212 states have (on average 1.240566037735849) internal successors, (263), 226 states have internal predecessors, (263), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-22 00:57:12,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 295 transitions. [2022-07-22 00:57:12,115 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 295 transitions. Word has length 56 [2022-07-22 00:57:12,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:57:12,116 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 295 transitions. [2022-07-22 00:57:12,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:57:12,116 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 295 transitions. [2022-07-22 00:57:12,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-22 00:57:12,118 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:57:12,118 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:57:12,141 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-07-22 00:57:12,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:57:12,324 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:57:12,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:57:12,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1866562491, now seen corresponding path program 1 times [2022-07-22 00:57:12,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:57:12,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158086064] [2022-07-22 00:57:12,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:57:12,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:57:12,434 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:57:12,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1305885925] [2022-07-22 00:57:12,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:57:12,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:57:12,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:57:12,437 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:57:12,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-22 00:57:13,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:57:13,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 00:57:13,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:57:13,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:57:13,271 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:57:13,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:57:13,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158086064] [2022-07-22 00:57:13,272 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:57:13,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305885925] [2022-07-22 00:57:13,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305885925] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:57:13,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:57:13,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 00:57:13,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429225011] [2022-07-22 00:57:13,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:57:13,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 00:57:13,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:57:13,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 00:57:13,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 00:57:13,274 INFO L87 Difference]: Start difference. First operand 235 states and 295 transitions. Second operand has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:57:13,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:57:13,308 INFO L93 Difference]: Finished difference Result 235 states and 295 transitions. [2022-07-22 00:57:13,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 00:57:13,309 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2022-07-22 00:57:13,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:57:13,311 INFO L225 Difference]: With dead ends: 235 [2022-07-22 00:57:13,311 INFO L226 Difference]: Without dead ends: 234 [2022-07-22 00:57:13,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 00:57:13,312 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 85 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:57:13,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 344 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:57:13,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-07-22 00:57:13,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2022-07-22 00:57:13,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 212 states have (on average 1.2358490566037736) internal successors, (262), 225 states have internal predecessors, (262), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-22 00:57:13,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 294 transitions. [2022-07-22 00:57:13,327 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 294 transitions. Word has length 57 [2022-07-22 00:57:13,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:57:13,328 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 294 transitions. [2022-07-22 00:57:13,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:57:13,328 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 294 transitions. [2022-07-22 00:57:13,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-22 00:57:13,329 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:57:13,329 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:57:13,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-22 00:57:13,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:57:13,556 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:57:13,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:57:13,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1237589276, now seen corresponding path program 1 times [2022-07-22 00:57:13,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:57:13,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150304920] [2022-07-22 00:57:13,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:57:13,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:57:13,714 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:57:13,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [624853598] [2022-07-22 00:57:13,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:57:13,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:57:13,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:57:13,716 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:57:13,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-22 00:57:14,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:57:14,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 1529 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 00:57:14,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:57:14,634 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:57:14,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:57:14,724 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:57:14,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:57:14,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150304920] [2022-07-22 00:57:14,724 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:57:14,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [624853598] [2022-07-22 00:57:14,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [624853598] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:57:14,725 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:57:14,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-22 00:57:14,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722872278] [2022-07-22 00:57:14,725 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:57:14,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 00:57:14,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:57:14,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 00:57:14,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-07-22 00:57:14,727 INFO L87 Difference]: Start difference. First operand 234 states and 294 transitions. Second operand has 8 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:57:14,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:57:14,819 INFO L93 Difference]: Finished difference Result 367 states and 469 transitions. [2022-07-22 00:57:14,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 00:57:14,820 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 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 61 [2022-07-22 00:57:14,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:57:14,822 INFO L225 Difference]: With dead ends: 367 [2022-07-22 00:57:14,822 INFO L226 Difference]: Without dead ends: 333 [2022-07-22 00:57:14,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-07-22 00:57:14,824 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 522 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:57:14,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 714 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:57:14,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2022-07-22 00:57:14,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2022-07-22 00:57:14,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 308 states have (on average 1.2207792207792207) internal successors, (376), 321 states have internal predecessors, (376), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2022-07-22 00:57:14,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 414 transitions. [2022-07-22 00:57:14,840 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 414 transitions. Word has length 61 [2022-07-22 00:57:14,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:57:14,840 INFO L495 AbstractCegarLoop]: Abstraction has 333 states and 414 transitions. [2022-07-22 00:57:14,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:57:14,841 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 414 transitions. [2022-07-22 00:57:14,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-22 00:57:14,842 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:57:14,842 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:57:14,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-22 00:57:15,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:57:15,056 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:57:15,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:57:15,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1237285228, now seen corresponding path program 1 times [2022-07-22 00:57:15,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:57:15,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038665155] [2022-07-22 00:57:15,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:57:15,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:57:15,159 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:57:15,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2109471171] [2022-07-22 00:57:15,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:57:15,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:57:15,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:57:15,168 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:57:15,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-22 00:57:16,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:57:16,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 1535 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 00:57:16,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:57:16,142 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:57:16,143 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:57:16,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:57:16,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038665155] [2022-07-22 00:57:16,143 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:57:16,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109471171] [2022-07-22 00:57:16,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109471171] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:57:16,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:57:16,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 00:57:16,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729934903] [2022-07-22 00:57:16,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:57:16,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 00:57:16,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:57:16,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 00:57:16,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:57:16,146 INFO L87 Difference]: Start difference. First operand 333 states and 414 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:57:16,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:57:16,194 INFO L93 Difference]: Finished difference Result 606 states and 760 transitions. [2022-07-22 00:57:16,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 00:57:16,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2022-07-22 00:57:16,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:57:16,197 INFO L225 Difference]: With dead ends: 606 [2022-07-22 00:57:16,197 INFO L226 Difference]: Without dead ends: 331 [2022-07-22 00:57:16,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:57:16,198 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 15 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:57:16,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 326 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:57:16,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-07-22 00:57:16,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 331. [2022-07-22 00:57:16,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 306 states have (on average 1.2189542483660132) internal successors, (373), 319 states have internal predecessors, (373), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2022-07-22 00:57:16,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 411 transitions. [2022-07-22 00:57:16,213 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 411 transitions. Word has length 61 [2022-07-22 00:57:16,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:57:16,214 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 411 transitions. [2022-07-22 00:57:16,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:57:16,214 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 411 transitions. [2022-07-22 00:57:16,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-22 00:57:16,215 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:57:16,215 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:57:16,247 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-22 00:57:16,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:57:16,432 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:57:16,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:57:16,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1438130325, now seen corresponding path program 1 times [2022-07-22 00:57:16,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:57:16,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833639786] [2022-07-22 00:57:16,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:57:16,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:57:16,486 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:57:16,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [660508727] [2022-07-22 00:57:16,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:57:16,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:57:16,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:57:16,488 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:57:16,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-22 00:57:38,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:57:38,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 672 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 00:57:38,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:57:38,705 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:57:38,705 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:57:38,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:57:38,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833639786] [2022-07-22 00:57:38,706 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:57:38,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660508727] [2022-07-22 00:57:38,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660508727] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:57:38,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:57:38,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 00:57:38,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588529951] [2022-07-22 00:57:38,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:57:38,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 00:57:38,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:57:38,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 00:57:38,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 00:57:38,709 INFO L87 Difference]: Start difference. First operand 331 states and 411 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-22 00:57:38,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:57:38,745 INFO L93 Difference]: Finished difference Result 613 states and 776 transitions. [2022-07-22 00:57:38,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 00:57:38,746 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 76 [2022-07-22 00:57:38,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:57:38,748 INFO L225 Difference]: With dead ends: 613 [2022-07-22 00:57:38,749 INFO L226 Difference]: Without dead ends: 334 [2022-07-22 00:57:38,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 00:57:38,751 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 2 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:57:38,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 503 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:57:38,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-07-22 00:57:38,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2022-07-22 00:57:38,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 308 states have (on average 1.2207792207792207) internal successors, (376), 322 states have internal predecessors, (376), 19 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-07-22 00:57:38,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 417 transitions. [2022-07-22 00:57:38,769 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 417 transitions. Word has length 76 [2022-07-22 00:57:38,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:57:38,771 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 417 transitions. [2022-07-22 00:57:38,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-22 00:57:38,772 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 417 transitions. [2022-07-22 00:57:38,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-22 00:57:38,775 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:57:38,775 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:57:38,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-22 00:57:38,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:57:38,988 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:57:38,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:57:38,989 INFO L85 PathProgramCache]: Analyzing trace with hash 766935497, now seen corresponding path program 1 times [2022-07-22 00:57:38,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:57:38,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534926460] [2022-07-22 00:57:38,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:57:38,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:57:39,032 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:57:39,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [874449794] [2022-07-22 00:57:39,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:57:39,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:57:39,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:57:39,035 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:57:39,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-22 00:57:40,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:57:40,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 702 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 00:57:40,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:57:40,297 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 00:57:40,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:57:40,397 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-22 00:57:40,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:57:40,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534926460] [2022-07-22 00:57:40,398 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:57:40,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874449794] [2022-07-22 00:57:40,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874449794] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:57:40,399 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:57:40,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-22 00:57:40,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721419189] [2022-07-22 00:57:40,400 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:57:40,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 00:57:40,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:57:40,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 00:57:40,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-22 00:57:40,401 INFO L87 Difference]: Start difference. First operand 334 states and 417 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 00:57:40,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:57:40,519 INFO L93 Difference]: Finished difference Result 627 states and 803 transitions. [2022-07-22 00:57:40,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-22 00:57:40,520 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 78 [2022-07-22 00:57:40,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:57:40,522 INFO L225 Difference]: With dead ends: 627 [2022-07-22 00:57:40,522 INFO L226 Difference]: Without dead ends: 345 [2022-07-22 00:57:40,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2022-07-22 00:57:40,526 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 16 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:57:40,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 508 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:57:40,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2022-07-22 00:57:40,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 343. [2022-07-22 00:57:40,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 316 states have (on average 1.2341772151898733) internal successors, (390), 330 states have internal predecessors, (390), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-07-22 00:57:40,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 431 transitions. [2022-07-22 00:57:40,545 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 431 transitions. Word has length 78 [2022-07-22 00:57:40,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:57:40,546 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 431 transitions. [2022-07-22 00:57:40,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 00:57:40,546 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 431 transitions. [2022-07-22 00:57:40,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-22 00:57:40,548 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:57:40,548 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:57:40,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-22 00:57:40,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-07-22 00:57:40,763 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:57:40,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:57:40,764 INFO L85 PathProgramCache]: Analyzing trace with hash 432269099, now seen corresponding path program 2 times [2022-07-22 00:57:40,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:57:40,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795724754] [2022-07-22 00:57:40,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:57:40,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:57:40,812 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:57:40,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [852191383] [2022-07-22 00:57:40,814 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 00:57:40,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:57:40,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:57:40,815 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:57:40,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-22 00:57:41,873 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 00:57:41,873 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:57:41,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-22 00:57:41,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:57:41,923 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-22 00:57:41,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:57:42,063 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 4 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-22 00:57:42,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:57:42,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795724754] [2022-07-22 00:57:42,063 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:57:42,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852191383] [2022-07-22 00:57:42,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852191383] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:57:42,063 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:57:42,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2022-07-22 00:57:42,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897358424] [2022-07-22 00:57:42,064 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:57:42,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-22 00:57:42,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:57:42,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-22 00:57:42,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2022-07-22 00:57:42,065 INFO L87 Difference]: Start difference. First operand 343 states and 431 transitions. Second operand has 15 states, 15 states have (on average 6.0) internal successors, (90), 15 states have internal predecessors, (90), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 00:57:42,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:57:42,595 INFO L93 Difference]: Finished difference Result 688 states and 894 transitions. [2022-07-22 00:57:42,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-22 00:57:42,595 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.0) internal successors, (90), 15 states have internal predecessors, (90), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 82 [2022-07-22 00:57:42,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:57:42,597 INFO L225 Difference]: With dead ends: 688 [2022-07-22 00:57:42,598 INFO L226 Difference]: Without dead ends: 351 [2022-07-22 00:57:42,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=259, Invalid=553, Unknown=0, NotChecked=0, Total=812 [2022-07-22 00:57:42,600 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 179 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 00:57:42,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 1321 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 00:57:42,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-07-22 00:57:42,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 343. [2022-07-22 00:57:42,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 316 states have (on average 1.2341772151898733) internal successors, (390), 330 states have internal predecessors, (390), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-07-22 00:57:42,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 431 transitions. [2022-07-22 00:57:42,637 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 431 transitions. Word has length 82 [2022-07-22 00:57:42,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:57:42,637 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 431 transitions. [2022-07-22 00:57:42,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.0) internal successors, (90), 15 states have internal predecessors, (90), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 00:57:42,638 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 431 transitions. [2022-07-22 00:57:42,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-22 00:57:42,638 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:57:42,639 INFO L195 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:57:42,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-22 00:57:42,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-22 00:57:42,856 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:57:42,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:57:42,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1367817495, now seen corresponding path program 3 times [2022-07-22 00:57:42,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:57:42,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335053649] [2022-07-22 00:57:42,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:57:42,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:57:42,902 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:57:42,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [849665822] [2022-07-22 00:57:42,903 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-22 00:57:42,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:57:42,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:57:42,904 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:57:42,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-22 00:57:45,649 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-22 00:57:45,649 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:57:45,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 00:57:45,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:57:45,748 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-07-22 00:57:45,748 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:57:45,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:57:45,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335053649] [2022-07-22 00:57:45,749 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:57:45,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849665822] [2022-07-22 00:57:45,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849665822] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:57:45,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:57:45,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 00:57:45,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83096026] [2022-07-22 00:57:45,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:57:45,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 00:57:45,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:57:45,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 00:57:45,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:57:45,752 INFO L87 Difference]: Start difference. First operand 343 states and 431 transitions. Second operand has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-22 00:57:45,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:57:45,832 INFO L93 Difference]: Finished difference Result 343 states and 431 transitions. [2022-07-22 00:57:45,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 00:57:45,833 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 91 [2022-07-22 00:57:45,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:57:45,835 INFO L225 Difference]: With dead ends: 343 [2022-07-22 00:57:45,835 INFO L226 Difference]: Without dead ends: 342 [2022-07-22 00:57:45,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-22 00:57:45,837 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 172 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:57:45,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 792 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:57:45,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-07-22 00:57:45,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2022-07-22 00:57:45,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 316 states have (on average 1.2278481012658229) internal successors, (388), 329 states have internal predecessors, (388), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-07-22 00:57:45,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 429 transitions. [2022-07-22 00:57:45,851 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 429 transitions. Word has length 91 [2022-07-22 00:57:45,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:57:45,852 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 429 transitions. [2022-07-22 00:57:45,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-22 00:57:45,852 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 429 transitions. [2022-07-22 00:57:45,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-07-22 00:57:45,855 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:57:45,856 INFO L195 NwaCegarLoop]: trace histogram [15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:57:45,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-22 00:57:46,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-22 00:57:46,072 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:57:46,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:57:46,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1165389731, now seen corresponding path program 1 times [2022-07-22 00:57:46,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:57:46,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290558045] [2022-07-22 00:57:46,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:57:46,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:57:46,301 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:57:46,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1076348870] [2022-07-22 00:57:46,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:57:46,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:57:46,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:57:46,312 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:57:46,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-22 00:57:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:57:47,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 3825 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 00:57:47,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:57:48,031 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 159 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-07-22 00:57:48,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:57:48,258 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 159 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-07-22 00:57:48,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:57:48,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290558045] [2022-07-22 00:57:48,259 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:57:48,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076348870] [2022-07-22 00:57:48,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076348870] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:57:48,259 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:57:48,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-07-22 00:57:48,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067060876] [2022-07-22 00:57:48,260 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:57:48,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-22 00:57:48,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:57:48,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-22 00:57:48,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-07-22 00:57:48,262 INFO L87 Difference]: Start difference. First operand 342 states and 429 transitions. Second operand has 14 states, 13 states have (on average 26.53846153846154) internal successors, (345), 14 states have internal predecessors, (345), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 00:57:48,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:57:48,418 INFO L93 Difference]: Finished difference Result 465 states and 594 transitions. [2022-07-22 00:57:48,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-22 00:57:48,419 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 26.53846153846154) internal successors, (345), 14 states have internal predecessors, (345), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 196 [2022-07-22 00:57:48,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:57:48,421 INFO L225 Difference]: With dead ends: 465 [2022-07-22 00:57:48,421 INFO L226 Difference]: Without dead ends: 464 [2022-07-22 00:57:48,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 378 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2022-07-22 00:57:48,422 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 395 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 1347 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:57:48,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 1347 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:57:48,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-07-22 00:57:48,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 341. [2022-07-22 00:57:48,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 316 states have (on average 1.2246835443037976) internal successors, (387), 328 states have internal predecessors, (387), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-07-22 00:57:48,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 428 transitions. [2022-07-22 00:57:48,437 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 428 transitions. Word has length 196 [2022-07-22 00:57:48,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:57:48,437 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 428 transitions. [2022-07-22 00:57:48,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 26.53846153846154) internal successors, (345), 14 states have internal predecessors, (345), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 00:57:48,438 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 428 transitions. [2022-07-22 00:57:48,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-07-22 00:57:48,440 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:57:48,440 INFO L195 NwaCegarLoop]: trace histogram [15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:57:48,478 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-22 00:57:48,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-22 00:57:48,663 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:57:48,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:57:48,664 INFO L85 PathProgramCache]: Analyzing trace with hash -493453511, now seen corresponding path program 1 times [2022-07-22 00:57:48,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:57:48,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339822807] [2022-07-22 00:57:48,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:57:48,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:57:48,868 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:57:48,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [31546505] [2022-07-22 00:57:48,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:57:48,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:57:48,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:57:48,876 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:57:48,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-22 00:57:50,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:57:50,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 3849 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 00:57:50,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:57:50,687 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-07-22 00:57:50,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:57:50,929 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-07-22 00:57:50,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:57:50,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339822807] [2022-07-22 00:57:50,929 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:57:50,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31546505] [2022-07-22 00:57:50,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31546505] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:57:50,930 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:57:50,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-07-22 00:57:50,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927277512] [2022-07-22 00:57:50,930 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:57:50,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-22 00:57:50,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:57:50,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-22 00:57:50,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2022-07-22 00:57:50,931 INFO L87 Difference]: Start difference. First operand 341 states and 428 transitions. Second operand has 16 states, 16 states have (on average 22.0) internal successors, (352), 16 states have internal predecessors, (352), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 00:57:51,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:57:51,110 INFO L93 Difference]: Finished difference Result 750 states and 940 transitions. [2022-07-22 00:57:51,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 00:57:51,111 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 22.0) internal successors, (352), 16 states have internal predecessors, (352), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 201 [2022-07-22 00:57:51,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:57:51,116 INFO L225 Difference]: With dead ends: 750 [2022-07-22 00:57:51,116 INFO L226 Difference]: Without dead ends: 717 [2022-07-22 00:57:51,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=151, Invalid=311, Unknown=0, NotChecked=0, Total=462 [2022-07-22 00:57:51,117 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 805 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:57:51,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [824 Valid, 1287 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:57:51,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2022-07-22 00:57:51,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 717. [2022-07-22 00:57:51,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 680 states have (on average 1.1985294117647058) internal successors, (815), 692 states have internal predecessors, (815), 31 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (38), 22 states have call predecessors, (38), 31 states have call successors, (38) [2022-07-22 00:57:51,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 884 transitions. [2022-07-22 00:57:51,146 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 884 transitions. Word has length 201 [2022-07-22 00:57:51,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:57:51,147 INFO L495 AbstractCegarLoop]: Abstraction has 717 states and 884 transitions. [2022-07-22 00:57:51,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 22.0) internal successors, (352), 16 states have internal predecessors, (352), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 00:57:51,147 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 884 transitions. [2022-07-22 00:57:51,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2022-07-22 00:57:51,153 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:57:51,153 INFO L195 NwaCegarLoop]: trace histogram [15, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:57:51,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-22 00:57:51,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-22 00:57:51,368 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:57:51,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:57:51,369 INFO L85 PathProgramCache]: Analyzing trace with hash -339908487, now seen corresponding path program 2 times [2022-07-22 00:57:51,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:57:51,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689044110] [2022-07-22 00:57:51,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:57:51,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:57:51,882 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:57:51,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1763026960] [2022-07-22 00:57:51,882 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 00:57:51,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:57:51,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:57:51,886 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:57:51,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-22 00:57:53,692 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-22 00:57:53,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:57:53,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 00:57:53,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:57:54,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1289 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1289 trivial. 0 not checked. [2022-07-22 00:57:54,146 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:57:54,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:57:54,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689044110] [2022-07-22 00:57:54,146 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:57:54,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763026960] [2022-07-22 00:57:54,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763026960] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:57:54,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:57:54,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 00:57:54,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728794111] [2022-07-22 00:57:54,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:57:54,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 00:57:54,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:57:54,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 00:57:54,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 00:57:54,148 INFO L87 Difference]: Start difference. First operand 717 states and 884 transitions. Second operand has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-22 00:57:54,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:57:54,199 INFO L93 Difference]: Finished difference Result 743 states and 930 transitions. [2022-07-22 00:57:54,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 00:57:54,199 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 421 [2022-07-22 00:57:54,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:57:54,203 INFO L225 Difference]: With dead ends: 743 [2022-07-22 00:57:54,203 INFO L226 Difference]: Without dead ends: 742 [2022-07-22 00:57:54,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 00:57:54,204 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 65 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:57:54,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 364 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:57:54,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2022-07-22 00:57:54,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 719. [2022-07-22 00:57:54,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 682 states have (on average 1.1979472140762464) internal successors, (817), 694 states have internal predecessors, (817), 31 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (38), 22 states have call predecessors, (38), 31 states have call successors, (38) [2022-07-22 00:57:54,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 886 transitions. [2022-07-22 00:57:54,230 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 886 transitions. Word has length 421 [2022-07-22 00:57:54,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:57:54,231 INFO L495 AbstractCegarLoop]: Abstraction has 719 states and 886 transitions. [2022-07-22 00:57:54,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-22 00:57:54,231 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 886 transitions. [2022-07-22 00:57:54,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2022-07-22 00:57:54,238 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:57:54,238 INFO L195 NwaCegarLoop]: trace histogram [15, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:57:54,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-22 00:57:54,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-22 00:57:54,451 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:57:54,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:57:54,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1947228074, now seen corresponding path program 1 times [2022-07-22 00:57:54,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:57:54,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727835796] [2022-07-22 00:57:54,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:57:54,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:57:55,042 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:57:55,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1778996958] [2022-07-22 00:57:55,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:57:55,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:57:55,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:57:55,052 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:57:55,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-22 00:57:58,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:57:58,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 9766 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-22 00:57:58,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:57:59,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1289 backedges. 0 proven. 1150 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-07-22 00:57:59,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:57:59,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1289 backedges. 0 proven. 1150 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-07-22 00:57:59,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:57:59,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727835796] [2022-07-22 00:57:59,895 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:57:59,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778996958] [2022-07-22 00:57:59,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778996958] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:57:59,896 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:57:59,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 21 [2022-07-22 00:57:59,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781569584] [2022-07-22 00:57:59,896 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:57:59,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-22 00:57:59,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:57:59,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-22 00:57:59,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2022-07-22 00:57:59,899 INFO L87 Difference]: Start difference. First operand 719 states and 886 transitions. Second operand has 21 states, 21 states have (on average 24.80952380952381) internal successors, (521), 21 states have internal predecessors, (521), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 00:58:00,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:58:00,194 INFO L93 Difference]: Finished difference Result 1036 states and 1285 transitions. [2022-07-22 00:58:00,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-22 00:58:00,195 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 24.80952380952381) internal successors, (521), 21 states have internal predecessors, (521), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 422 [2022-07-22 00:58:00,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:58:00,200 INFO L225 Difference]: With dead ends: 1036 [2022-07-22 00:58:00,200 INFO L226 Difference]: Without dead ends: 1001 [2022-07-22 00:58:00,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 851 GetRequests, 822 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=273, Invalid=597, Unknown=0, NotChecked=0, Total=870 [2022-07-22 00:58:00,202 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 1495 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1521 SdHoareTripleChecker+Valid, 2032 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:58:00,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1521 Valid, 2032 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:58:00,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2022-07-22 00:58:00,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 1001. [2022-07-22 00:58:00,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 955 states have (on average 1.1916230366492147) internal successors, (1138), 967 states have internal predecessors, (1138), 40 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (50), 31 states have call predecessors, (50), 40 states have call successors, (50) [2022-07-22 00:58:00,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1228 transitions. [2022-07-22 00:58:00,237 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1228 transitions. Word has length 422 [2022-07-22 00:58:00,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:58:00,238 INFO L495 AbstractCegarLoop]: Abstraction has 1001 states and 1228 transitions. [2022-07-22 00:58:00,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 24.80952380952381) internal successors, (521), 21 states have internal predecessors, (521), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 00:58:00,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1228 transitions. [2022-07-22 00:58:00,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 588 [2022-07-22 00:58:00,243 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:58:00,244 INFO L195 NwaCegarLoop]: trace histogram [15, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:58:00,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-22 00:58:00,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:58:00,463 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:58:00,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:58:00,464 INFO L85 PathProgramCache]: Analyzing trace with hash -286676461, now seen corresponding path program 2 times [2022-07-22 00:58:00,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:58:00,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673264618] [2022-07-22 00:58:00,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:58:00,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:58:01,140 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:58:01,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [665232728] [2022-07-22 00:58:01,140 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 00:58:01,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:58:01,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:58:01,144 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:58:01,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-22 00:58:04,155 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-22 00:58:04,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:58:04,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 00:58:04,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:58:04,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2606 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2022-07-22 00:58:04,772 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:58:04,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:58:04,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673264618] [2022-07-22 00:58:04,772 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:58:04,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665232728] [2022-07-22 00:58:04,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665232728] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:58:04,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:58:04,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 00:58:04,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34253720] [2022-07-22 00:58:04,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:58:04,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 00:58:04,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:58:04,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 00:58:04,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 00:58:04,773 INFO L87 Difference]: Start difference. First operand 1001 states and 1228 transitions. Second operand has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-22 00:58:04,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:58:04,832 INFO L93 Difference]: Finished difference Result 1001 states and 1228 transitions. [2022-07-22 00:58:04,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 00:58:04,832 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 587 [2022-07-22 00:58:04,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:58:04,836 INFO L225 Difference]: With dead ends: 1001 [2022-07-22 00:58:04,837 INFO L226 Difference]: Without dead ends: 1000 [2022-07-22 00:58:04,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 587 GetRequests, 584 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 00:58:04,838 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 100 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:58:04,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 272 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:58:04,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2022-07-22 00:58:04,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 1000. [2022-07-22 00:58:04,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1000 states, 955 states have (on average 1.1905759162303664) internal successors, (1137), 966 states have internal predecessors, (1137), 40 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (50), 31 states have call predecessors, (50), 40 states have call successors, (50) [2022-07-22 00:58:04,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1227 transitions. [2022-07-22 00:58:04,870 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1227 transitions. Word has length 587 [2022-07-22 00:58:04,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:58:04,871 INFO L495 AbstractCegarLoop]: Abstraction has 1000 states and 1227 transitions. [2022-07-22 00:58:04,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-22 00:58:04,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1227 transitions. [2022-07-22 00:58:04,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2022-07-22 00:58:04,876 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:58:04,876 INFO L195 NwaCegarLoop]: trace histogram [15, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:58:04,919 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-22 00:58:05,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-22 00:58:05,091 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:58:05,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:58:05,092 INFO L85 PathProgramCache]: Analyzing trace with hash -645700228, now seen corresponding path program 1 times [2022-07-22 00:58:05,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:58:05,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205070180] [2022-07-22 00:58:05,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:58:05,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:58:05,659 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:58:05,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [100731690] [2022-07-22 00:58:05,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:58:05,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:58:05,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:58:05,661 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:58:05,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-22 00:58:11,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:58:11,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 14238 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 00:58:11,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:58:11,795 INFO L134 CoverageAnalysis]: Checked inductivity of 2608 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2022-07-22 00:58:11,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:58:12,380 INFO L134 CoverageAnalysis]: Checked inductivity of 2608 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2022-07-22 00:58:12,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:58:12,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205070180] [2022-07-22 00:58:12,381 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:58:12,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100731690] [2022-07-22 00:58:12,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100731690] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:58:12,382 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:58:12,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2022-07-22 00:58:12,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018471490] [2022-07-22 00:58:12,382 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:58:12,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-22 00:58:12,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:58:12,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-22 00:58:12,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-22 00:58:12,384 INFO L87 Difference]: Start difference. First operand 1000 states and 1227 transitions. Second operand has 10 states, 9 states have (on average 18.444444444444443) internal successors, (166), 10 states have internal predecessors, (166), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-07-22 00:58:12,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:58:12,681 INFO L93 Difference]: Finished difference Result 1092 states and 1378 transitions. [2022-07-22 00:58:12,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 00:58:12,684 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 18.444444444444443) internal successors, (166), 10 states have internal predecessors, (166), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 598 [2022-07-22 00:58:12,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:58:12,689 INFO L225 Difference]: With dead ends: 1092 [2022-07-22 00:58:12,690 INFO L226 Difference]: Without dead ends: 1091 [2022-07-22 00:58:12,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1201 GetRequests, 1186 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2022-07-22 00:58:12,691 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 350 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 00:58:12,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 688 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 00:58:12,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1091 states. [2022-07-22 00:58:12,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1091 to 1090. [2022-07-22 00:58:12,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1090 states, 1012 states have (on average 1.209486166007905) internal successors, (1224), 1053 states have internal predecessors, (1224), 70 states have call successors, (70), 6 states have call predecessors, (70), 7 states have return successors, (80), 34 states have call predecessors, (80), 70 states have call successors, (80) [2022-07-22 00:58:12,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 1374 transitions. [2022-07-22 00:58:12,743 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 1374 transitions. Word has length 598 [2022-07-22 00:58:12,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:58:12,744 INFO L495 AbstractCegarLoop]: Abstraction has 1090 states and 1374 transitions. [2022-07-22 00:58:12,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 18.444444444444443) internal successors, (166), 10 states have internal predecessors, (166), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-07-22 00:58:12,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 1374 transitions. [2022-07-22 00:58:12,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 635 [2022-07-22 00:58:12,752 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:58:12,753 INFO L195 NwaCegarLoop]: trace histogram [15, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:58:12,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-07-22 00:58:12,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-07-22 00:58:12,979 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:58:12,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:58:12,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1564932964, now seen corresponding path program 2 times [2022-07-22 00:58:12,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:58:12,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474799517] [2022-07-22 00:58:12,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:58:12,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:58:13,711 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:58:13,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [56500907] [2022-07-22 00:58:13,712 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 00:58:13,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:58:13,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:58:13,713 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:58:13,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-22 00:58:19,802 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 00:58:19,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:58:19,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 14346 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-22 00:58:19,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:58:20,519 INFO L134 CoverageAnalysis]: Checked inductivity of 2686 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2022-07-22 00:58:20,520 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:58:21,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2686 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 2630 trivial. 0 not checked. [2022-07-22 00:58:21,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:58:21,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474799517] [2022-07-22 00:58:21,248 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:58:21,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56500907] [2022-07-22 00:58:21,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56500907] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:58:21,248 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:58:21,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 21 [2022-07-22 00:58:21,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051507671] [2022-07-22 00:58:21,248 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:58:21,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-22 00:58:21,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:58:21,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-22 00:58:21,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2022-07-22 00:58:21,250 INFO L87 Difference]: Start difference. First operand 1090 states and 1374 transitions. Second operand has 22 states, 21 states have (on average 10.333333333333334) internal successors, (217), 22 states have internal predecessors, (217), 10 states have call successors, (12), 6 states have call predecessors, (12), 6 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2022-07-22 00:58:22,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:58:22,273 INFO L93 Difference]: Finished difference Result 1272 states and 1675 transitions. [2022-07-22 00:58:22,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-07-22 00:58:22,277 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 10.333333333333334) internal successors, (217), 22 states have internal predecessors, (217), 10 states have call successors, (12), 6 states have call predecessors, (12), 6 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) Word has length 634 [2022-07-22 00:58:22,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:58:22,283 INFO L225 Difference]: With dead ends: 1272 [2022-07-22 00:58:22,284 INFO L226 Difference]: Without dead ends: 1271 [2022-07-22 00:58:22,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1285 GetRequests, 1246 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=549, Invalid=1091, Unknown=0, NotChecked=0, Total=1640 [2022-07-22 00:58:22,287 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 1173 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 984 mSolverCounterSat, 518 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1183 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 1502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 518 IncrementalHoareTripleChecker+Valid, 984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 00:58:22,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1183 Valid, 737 Invalid, 1502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [518 Valid, 984 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 00:58:22,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2022-07-22 00:58:22,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 1270. [2022-07-22 00:58:22,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 1126 states have (on average 1.241563055062167) internal successors, (1398), 1227 states have internal predecessors, (1398), 130 states have call successors, (130), 12 states have call predecessors, (130), 13 states have return successors, (140), 40 states have call predecessors, (140), 130 states have call successors, (140) [2022-07-22 00:58:22,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 1668 transitions. [2022-07-22 00:58:22,345 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 1668 transitions. Word has length 634 [2022-07-22 00:58:22,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:58:22,346 INFO L495 AbstractCegarLoop]: Abstraction has 1270 states and 1668 transitions. [2022-07-22 00:58:22,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 10.333333333333334) internal successors, (217), 22 states have internal predecessors, (217), 10 states have call successors, (12), 6 states have call predecessors, (12), 6 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2022-07-22 00:58:22,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 1668 transitions. [2022-07-22 00:58:22,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2022-07-22 00:58:22,355 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:58:22,355 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:58:22,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-07-22 00:58:22,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-22 00:58:22,570 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:58:22,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:58:22,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1223758556, now seen corresponding path program 3 times [2022-07-22 00:58:22,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:58:22,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965292561] [2022-07-22 00:58:22,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:58:22,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:58:23,314 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:58:23,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [596168963] [2022-07-22 00:58:23,314 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-22 00:58:23,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:58:23,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:58:23,320 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:58:23,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-22 00:58:28,524 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-22 00:58:28,525 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:58:28,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 1565 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 00:58:28,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:58:28,621 INFO L134 CoverageAnalysis]: Checked inductivity of 3166 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 3065 trivial. 0 not checked. [2022-07-22 00:58:28,622 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:58:28,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:58:28,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965292561] [2022-07-22 00:58:28,622 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:58:28,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [596168963] [2022-07-22 00:58:28,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [596168963] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:58:28,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:58:28,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 00:58:28,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410463203] [2022-07-22 00:58:28,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:58:28,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 00:58:28,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:58:28,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 00:58:28,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-22 00:58:28,626 INFO L87 Difference]: Start difference. First operand 1270 states and 1668 transitions. Second operand has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 00:58:28,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:58:28,952 INFO L93 Difference]: Finished difference Result 1587 states and 2155 transitions. [2022-07-22 00:58:28,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 00:58:28,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 706 [2022-07-22 00:58:28,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:58:28,971 INFO L225 Difference]: With dead ends: 1587 [2022-07-22 00:58:28,971 INFO L226 Difference]: Without dead ends: 1586 [2022-07-22 00:58:28,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 709 GetRequests, 704 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-22 00:58:28,973 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 264 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:58:28,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 320 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:58:28,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2022-07-22 00:58:29,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1513. [2022-07-22 00:58:29,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1297 states have (on average 1.2791056283731688) internal successors, (1659), 1452 states have internal predecessors, (1659), 193 states have call successors, (193), 21 states have call predecessors, (193), 22 states have return successors, (203), 49 states have call predecessors, (203), 193 states have call successors, (203) [2022-07-22 00:58:29,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2055 transitions. [2022-07-22 00:58:29,058 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2055 transitions. Word has length 706 [2022-07-22 00:58:29,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:58:29,059 INFO L495 AbstractCegarLoop]: Abstraction has 1513 states and 2055 transitions. [2022-07-22 00:58:29,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 00:58:29,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2055 transitions. [2022-07-22 00:58:29,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 708 [2022-07-22 00:58:29,068 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:58:29,068 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:58:29,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-07-22 00:58:29,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:58:29,283 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:58:29,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:58:29,284 INFO L85 PathProgramCache]: Analyzing trace with hash 325074127, now seen corresponding path program 1 times [2022-07-22 00:58:29,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:58:29,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908996236] [2022-07-22 00:58:29,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:58:29,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:58:29,902 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:58:29,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2130773797] [2022-07-22 00:58:29,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:58:29,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:58:29,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:58:29,904 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:58:29,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-07-22 00:58:37,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:58:37,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 14564 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-22 00:58:37,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:58:38,648 INFO L134 CoverageAnalysis]: Checked inductivity of 3157 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2022-07-22 00:58:38,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:58:39,741 INFO L134 CoverageAnalysis]: Checked inductivity of 3157 backedges. 0 proven. 371 refuted. 0 times theorem prover too weak. 2786 trivial. 0 not checked. [2022-07-22 00:58:39,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:58:39,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908996236] [2022-07-22 00:58:39,742 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:58:39,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130773797] [2022-07-22 00:58:39,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130773797] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:58:39,742 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:58:39,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 23] total 45 [2022-07-22 00:58:39,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706450282] [2022-07-22 00:58:39,743 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:58:39,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-07-22 00:58:39,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:58:39,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-07-22 00:58:39,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2022-07-22 00:58:39,746 INFO L87 Difference]: Start difference. First operand 1513 states and 2055 transitions. Second operand has 46 states, 45 states have (on average 7.133333333333334) internal successors, (321), 46 states have internal predecessors, (321), 22 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2022-07-22 00:58:42,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:58:42,528 INFO L93 Difference]: Finished difference Result 2230 states and 3223 transitions. [2022-07-22 00:58:42,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-07-22 00:58:42,529 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 7.133333333333334) internal successors, (321), 46 states have internal predecessors, (321), 22 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) Word has length 707 [2022-07-22 00:58:42,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:58:42,541 INFO L225 Difference]: With dead ends: 2230 [2022-07-22 00:58:42,541 INFO L226 Difference]: Without dead ends: 2229 [2022-07-22 00:58:42,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1455 GetRequests, 1368 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1615 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=2529, Invalid=5303, Unknown=0, NotChecked=0, Total=7832 [2022-07-22 00:58:42,545 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 3183 mSDsluCounter, 1180 mSDsCounter, 0 mSdLazyCounter, 2196 mSolverCounterSat, 1561 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3193 SdHoareTripleChecker+Valid, 1333 SdHoareTripleChecker+Invalid, 3757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1561 IncrementalHoareTripleChecker+Valid, 2196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-22 00:58:42,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3193 Valid, 1333 Invalid, 3757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1561 Valid, 2196 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-22 00:58:42,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2229 states. [2022-07-22 00:58:42,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2229 to 2209. [2022-07-22 00:58:42,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2209 states, 1753 states have (on average 1.343411294922989) internal successors, (2355), 2112 states have internal predecessors, (2355), 409 states have call successors, (409), 45 states have call predecessors, (409), 46 states have return successors, (419), 73 states have call predecessors, (419), 409 states have call successors, (419) [2022-07-22 00:58:42,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2209 states to 2209 states and 3183 transitions. [2022-07-22 00:58:42,716 INFO L78 Accepts]: Start accepts. Automaton has 2209 states and 3183 transitions. Word has length 707 [2022-07-22 00:58:42,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:58:42,717 INFO L495 AbstractCegarLoop]: Abstraction has 2209 states and 3183 transitions. [2022-07-22 00:58:42,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 7.133333333333334) internal successors, (321), 46 states have internal predecessors, (321), 22 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2022-07-22 00:58:42,718 INFO L276 IsEmpty]: Start isEmpty. Operand 2209 states and 3183 transitions. [2022-07-22 00:58:42,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 852 [2022-07-22 00:58:42,733 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:58:42,734 INFO L195 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 15, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:58:42,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-07-22 00:58:42,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:58:42,947 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:58:42,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:58:42,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1740083121, now seen corresponding path program 2 times [2022-07-22 00:58:42,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:58:42,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265275742] [2022-07-22 00:58:42,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:58:42,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:58:43,627 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:58:43,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1164420009] [2022-07-22 00:58:43,628 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 00:58:43,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:58:43,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:58:43,630 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:58:43,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-07-22 00:58:51,954 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 00:58:51,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:58:52,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 14996 conjuncts, 47 conjunts are in the unsatisfiable core [2022-07-22 00:58:52,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:58:53,470 INFO L134 CoverageAnalysis]: Checked inductivity of 5401 backedges. 0 proven. 2795 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2022-07-22 00:58:53,470 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:58:55,560 INFO L134 CoverageAnalysis]: Checked inductivity of 5401 backedges. 0 proven. 1871 refuted. 0 times theorem prover too weak. 3530 trivial. 0 not checked. [2022-07-22 00:58:55,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:58:55,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265275742] [2022-07-22 00:58:55,561 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:58:55,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164420009] [2022-07-22 00:58:55,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164420009] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:58:55,561 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:58:55,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 47] total 93 [2022-07-22 00:58:55,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286036061] [2022-07-22 00:58:55,562 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:58:55,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-07-22 00:58:55,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:58:55,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-07-22 00:58:55,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2022-07-22 00:58:55,567 INFO L87 Difference]: Start difference. First operand 2209 states and 3183 transitions. Second operand has 94 states, 93 states have (on average 5.645161290322581) internal successors, (525), 94 states have internal predecessors, (525), 46 states have call successors, (48), 24 states have call predecessors, (48), 24 states have return successors, (48), 46 states have call predecessors, (48), 46 states have call successors, (48) [2022-07-22 00:59:03,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:59:03,486 INFO L93 Difference]: Finished difference Result 3622 states and 5491 transitions. [2022-07-22 00:59:03,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. [2022-07-22 00:59:03,487 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 5.645161290322581) internal successors, (525), 94 states have internal predecessors, (525), 46 states have call successors, (48), 24 states have call predecessors, (48), 24 states have return successors, (48), 46 states have call predecessors, (48), 46 states have call successors, (48) Word has length 851 [2022-07-22 00:59:03,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:59:03,506 INFO L225 Difference]: With dead ends: 3622 [2022-07-22 00:59:03,506 INFO L226 Difference]: Without dead ends: 3621 [2022-07-22 00:59:03,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1791 GetRequests, 1608 SyntacticMatches, 0 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7507 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=10809, Invalid=23231, Unknown=0, NotChecked=0, Total=34040 [2022-07-22 00:59:03,516 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 7765 mSDsluCounter, 1949 mSDsCounter, 0 mSdLazyCounter, 5684 mSolverCounterSat, 4459 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7775 SdHoareTripleChecker+Valid, 2102 SdHoareTripleChecker+Invalid, 10143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4459 IncrementalHoareTripleChecker+Valid, 5684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-07-22 00:59:03,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7775 Valid, 2102 Invalid, 10143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4459 Valid, 5684 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-07-22 00:59:03,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3621 states. [2022-07-22 00:59:03,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3621 to 3601. [2022-07-22 00:59:03,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3601 states, 2665 states have (on average 1.4060037523452158) internal successors, (3747), 3432 states have internal predecessors, (3747), 841 states have call successors, (841), 93 states have call predecessors, (841), 94 states have return successors, (851), 121 states have call predecessors, (851), 841 states have call successors, (851) [2022-07-22 00:59:03,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3601 states to 3601 states and 5439 transitions. [2022-07-22 00:59:03,762 INFO L78 Accepts]: Start accepts. Automaton has 3601 states and 5439 transitions. Word has length 851 [2022-07-22 00:59:03,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:59:03,763 INFO L495 AbstractCegarLoop]: Abstraction has 3601 states and 5439 transitions. [2022-07-22 00:59:03,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 5.645161290322581) internal successors, (525), 94 states have internal predecessors, (525), 46 states have call successors, (48), 24 states have call predecessors, (48), 24 states have return successors, (48), 46 states have call predecessors, (48), 46 states have call successors, (48) [2022-07-22 00:59:03,764 INFO L276 IsEmpty]: Start isEmpty. Operand 3601 states and 5439 transitions. [2022-07-22 00:59:03,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1140 [2022-07-22 00:59:03,793 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:59:03,793 INFO L195 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 46, 46, 46, 46, 45, 45, 45, 15, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:59:03,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-07-22 00:59:04,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-07-22 00:59:04,019 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:59:04,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:59:04,020 INFO L85 PathProgramCache]: Analyzing trace with hash 812373839, now seen corresponding path program 3 times [2022-07-22 00:59:04,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:59:04,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431254578] [2022-07-22 00:59:04,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:59:04,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:59:04,761 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:59:04,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [645971277] [2022-07-22 00:59:04,762 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-22 00:59:04,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:59:04,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:59:04,763 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:59:04,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-07-22 00:59:11,714 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-22 00:59:11,714 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:59:11,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 1567 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 00:59:11,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:59:11,809 INFO L134 CoverageAnalysis]: Checked inductivity of 15073 backedges. 452 proven. 0 refuted. 0 times theorem prover too weak. 14621 trivial. 0 not checked. [2022-07-22 00:59:11,809 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:59:11,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:59:11,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431254578] [2022-07-22 00:59:11,809 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:59:11,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645971277] [2022-07-22 00:59:11,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645971277] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:59:11,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:59:11,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 00:59:11,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962669362] [2022-07-22 00:59:11,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:59:11,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 00:59:11,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:59:11,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 00:59:11,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:59:11,811 INFO L87 Difference]: Start difference. First operand 3601 states and 5439 transitions. Second operand has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 00:59:12,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:59:12,478 INFO L93 Difference]: Finished difference Result 6476 states and 9925 transitions. [2022-07-22 00:59:12,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 00:59:12,480 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 1139 [2022-07-22 00:59:12,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:59:12,519 INFO L225 Difference]: With dead ends: 6476 [2022-07-22 00:59:12,519 INFO L226 Difference]: Without dead ends: 6475 [2022-07-22 00:59:12,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1147 GetRequests, 1138 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-07-22 00:59:12,526 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 179 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:59:12,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 413 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:59:12,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6475 states. [2022-07-22 00:59:13,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6475 to 6012. [2022-07-22 00:59:13,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6012 states, 4372 states have (on average 1.4533394327538884) internal successors, (6354), 5664 states have internal predecessors, (6354), 1456 states have call successors, (1456), 182 states have call predecessors, (1456), 183 states have return successors, (1466), 210 states have call predecessors, (1466), 1456 states have call successors, (1466) [2022-07-22 00:59:13,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6012 states to 6012 states and 9276 transitions. [2022-07-22 00:59:13,142 INFO L78 Accepts]: Start accepts. Automaton has 6012 states and 9276 transitions. Word has length 1139 [2022-07-22 00:59:13,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:59:13,143 INFO L495 AbstractCegarLoop]: Abstraction has 6012 states and 9276 transitions. [2022-07-22 00:59:13,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 00:59:13,144 INFO L276 IsEmpty]: Start isEmpty. Operand 6012 states and 9276 transitions. [2022-07-22 00:59:13,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1142 [2022-07-22 00:59:13,175 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:59:13,176 INFO L195 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 46, 46, 46, 46, 44, 44, 44, 15, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:59:13,259 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-07-22 00:59:13,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-07-22 00:59:13,395 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:59:13,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:59:13,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1701908781, now seen corresponding path program 1 times [2022-07-22 00:59:13,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:59:13,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257899478] [2022-07-22 00:59:13,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:59:13,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:59:14,090 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:59:14,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [930630008] [2022-07-22 00:59:14,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:59:14,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:59:14,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:59:14,094 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:59:14,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-07-22 00:59:23,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:59:23,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 15864 conjuncts, 95 conjunts are in the unsatisfiable core [2022-07-22 00:59:23,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:59:26,931 INFO L134 CoverageAnalysis]: Checked inductivity of 15030 backedges. 0 proven. 12424 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2022-07-22 00:59:26,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:59:33,227 INFO L134 CoverageAnalysis]: Checked inductivity of 15030 backedges. 0 proven. 8284 refuted. 0 times theorem prover too weak. 6746 trivial. 0 not checked. [2022-07-22 00:59:33,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:59:33,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257899478] [2022-07-22 00:59:33,228 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:59:33,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930630008] [2022-07-22 00:59:33,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930630008] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:59:33,228 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:59:33,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [94, 95] total 189 [2022-07-22 00:59:33,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94491904] [2022-07-22 00:59:33,229 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:59:33,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2022-07-22 00:59:33,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:59:33,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2022-07-22 00:59:33,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2022-07-22 00:59:33,242 INFO L87 Difference]: Start difference. First operand 6012 states and 9276 transitions. Second operand has 190 states, 189 states have (on average 4.957671957671957) internal successors, (937), 190 states have internal predecessors, (937), 94 states have call successors, (96), 48 states have call predecessors, (96), 48 states have return successors, (96), 94 states have call predecessors, (96), 94 states have call successors, (96) [2022-07-22 01:00:05,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:00:05,969 INFO L93 Difference]: Finished difference Result 11444 states and 18040 transitions. [2022-07-22 01:00:05,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 284 states. [2022-07-22 01:00:05,970 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 4.957671957671957) internal successors, (937), 190 states have internal predecessors, (937), 94 states have call successors, (96), 48 states have call predecessors, (96), 48 states have return successors, (96), 94 states have call predecessors, (96), 94 states have call successors, (96) Word has length 1141 [2022-07-22 01:00:05,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:00:06,044 INFO L225 Difference]: With dead ends: 11444 [2022-07-22 01:00:06,044 INFO L226 Difference]: Without dead ends: 11443 [2022-07-22 01:00:06,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2467 GetRequests, 2092 SyntacticMatches, 0 SemanticMatches, 375 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32251 ImplicationChecksByTransitivity, 17.8s TimeCoverageRelationStatistics Valid=44649, Invalid=97103, Unknown=0, NotChecked=0, Total=141752 [2022-07-22 01:00:06,064 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 19540 mSDsluCounter, 3337 mSDsCounter, 0 mSdLazyCounter, 10536 mSolverCounterSat, 11461 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19550 SdHoareTripleChecker+Valid, 3490 SdHoareTripleChecker+Invalid, 21997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11461 IncrementalHoareTripleChecker+Valid, 10536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-07-22 01:00:06,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19550 Valid, 3490 Invalid, 21997 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11461 Valid, 10536 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2022-07-22 01:00:06,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11443 states. [2022-07-22 01:00:06,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11443 to 11388. [2022-07-22 01:00:06,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11388 states, 8020 states have (on average 1.4865336658354116) internal successors, (11922), 10704 states have internal predecessors, (11922), 2992 states have call successors, (2992), 374 states have call predecessors, (2992), 375 states have return successors, (3002), 402 states have call predecessors, (3002), 2992 states have call successors, (3002) [2022-07-22 01:00:06,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11388 states to 11388 states and 17916 transitions. [2022-07-22 01:00:06,981 INFO L78 Accepts]: Start accepts. Automaton has 11388 states and 17916 transitions. Word has length 1141 [2022-07-22 01:00:06,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:00:06,982 INFO L495 AbstractCegarLoop]: Abstraction has 11388 states and 17916 transitions. [2022-07-22 01:00:06,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 4.957671957671957) internal successors, (937), 190 states have internal predecessors, (937), 94 states have call successors, (96), 48 states have call predecessors, (96), 48 states have return successors, (96), 94 states have call predecessors, (96), 94 states have call successors, (96) [2022-07-22 01:00:06,983 INFO L276 IsEmpty]: Start isEmpty. Operand 11388 states and 17916 transitions. [2022-07-22 01:00:07,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1718 [2022-07-22 01:00:07,047 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:00:07,048 INFO L195 NwaCegarLoop]: trace histogram [95, 94, 94, 94, 94, 94, 94, 94, 94, 92, 92, 92, 15, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:00:07,168 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-07-22 01:00:07,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:00:07,264 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:00:07,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:00:07,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1115136211, now seen corresponding path program 2 times [2022-07-22 01:00:07,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:00:07,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868467059] [2022-07-22 01:00:07,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:00:07,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:00:08,724 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:00:08,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1390729792] [2022-07-22 01:00:08,724 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 01:00:08,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:00:08,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:00:08,726 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:00:08,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-07-22 01:00:19,269 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 01:00:19,270 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 01:00:19,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 17592 conjuncts, 191 conjunts are in the unsatisfiable core [2022-07-22 01:00:19,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:00:29,279 INFO L134 CoverageAnalysis]: Checked inductivity of 55062 backedges. 0 proven. 52456 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2022-07-22 01:00:29,280 INFO L328 TraceCheckSpWp]: Computing backward predicates...