./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.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_SAX_test6-1.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 ff5be3465740cb655882704e7eef418c95d0bbd56a2060e741c7d3e996e58af7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 01:13:27,812 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 01:13:27,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 01:13:27,832 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 01:13:27,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 01:13:27,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 01:13:27,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 01:13:27,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 01:13:27,840 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 01:13:27,841 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 01:13:27,842 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 01:13:27,844 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 01:13:27,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 01:13:27,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 01:13:27,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 01:13:27,849 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 01:13:27,850 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 01:13:27,854 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 01:13:27,856 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 01:13:27,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 01:13:27,863 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 01:13:27,864 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 01:13:27,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 01:13:27,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 01:13:27,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 01:13:27,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 01:13:27,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 01:13:27,871 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 01:13:27,872 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 01:13:27,873 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 01:13:27,873 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 01:13:27,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 01:13:27,876 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 01:13:27,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 01:13:27,877 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 01:13:27,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 01:13:27,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 01:13:27,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 01:13:27,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 01:13:27,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 01:13:27,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 01:13:27,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 01:13:27,883 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-22 01:13:27,906 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 01:13:27,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 01:13:27,907 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 01:13:27,907 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 01:13:27,908 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 01:13:27,908 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 01:13:27,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 01:13:27,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 01:13:27,909 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 01:13:27,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 01:13:27,910 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 01:13:27,910 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 01:13:27,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 01:13:27,910 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 01:13:27,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 01:13:27,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 01:13:27,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 01:13:27,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 01:13:27,917 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-22 01:13:27,917 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 01:13:27,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 01:13:27,917 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 01:13:27,917 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 01:13:27,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 01:13:27,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 01:13:27,918 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 01:13:27,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 01:13:27,918 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 01:13:27,918 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 01:13:27,919 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 01:13:27,919 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 01:13:27,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 01:13:27,919 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 01:13:27,919 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff5be3465740cb655882704e7eef418c95d0bbd56a2060e741c7d3e996e58af7 [2022-07-22 01:13:28,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 01:13:28,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 01:13:28,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 01:13:28,211 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 01:13:28,211 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 01:13:28,212 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i [2022-07-22 01:13:28,257 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/940c69c29/3f6ed03025f94acaabb0d53068518f9d/FLAGb38de4c66 [2022-07-22 01:13:28,736 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 01:13:28,736 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i [2022-07-22 01:13:28,749 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/940c69c29/3f6ed03025f94acaabb0d53068518f9d/FLAGb38de4c66 [2022-07-22 01:13:28,765 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/940c69c29/3f6ed03025f94acaabb0d53068518f9d [2022-07-22 01:13:28,767 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 01:13:28,770 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 01:13:28,771 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 01:13:28,771 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 01:13:28,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 01:13:28,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:13:28" (1/1) ... [2022-07-22 01:13:28,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79afe526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:13:28, skipping insertion in model container [2022-07-22 01:13:28,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:13:28" (1/1) ... [2022-07-22 01:13:28,779 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 01:13:28,814 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 01:13:29,202 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_SAX_test6-1.i[44118,44131] [2022-07-22 01:13:29,218 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_SAX_test6-1.i[44660,44673] [2022-07-22 01:13:29,300 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_SAX_test6-1.i[56247,56260] [2022-07-22 01:13:29,305 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_SAX_test6-1.i[56368,56381] [2022-07-22 01:13:29,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:13:29,329 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 01:13:29,355 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_SAX_test6-1.i[44118,44131] [2022-07-22 01:13:29,359 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_SAX_test6-1.i[44660,44673] [2022-07-22 01:13:29,395 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_SAX_test6-1.i[56247,56260] [2022-07-22 01:13:29,398 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_SAX_test6-1.i[56368,56381] [2022-07-22 01:13:29,407 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:13:29,448 INFO L208 MainTranslator]: Completed translation [2022-07-22 01:13:29,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:13:29 WrapperNode [2022-07-22 01:13:29,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 01:13:29,450 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 01:13:29,450 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 01:13:29,450 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 01:13:29,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:13:29" (1/1) ... [2022-07-22 01:13:29,481 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:13:29" (1/1) ... [2022-07-22 01:13:29,537 INFO L137 Inliner]: procedures = 282, calls = 294, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1050 [2022-07-22 01:13:29,538 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 01:13:29,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 01:13:29,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 01:13:29,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 01:13:29,546 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:13:29" (1/1) ... [2022-07-22 01:13:29,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:13:29" (1/1) ... [2022-07-22 01:13:29,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:13:29" (1/1) ... [2022-07-22 01:13:29,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:13:29" (1/1) ... [2022-07-22 01:13:29,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:13:29" (1/1) ... [2022-07-22 01:13:29,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:13:29" (1/1) ... [2022-07-22 01:13:29,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:13:29" (1/1) ... [2022-07-22 01:13:29,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 01:13:29,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 01:13:29,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 01:13:29,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 01:13:29,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:13:29" (1/1) ... [2022-07-22 01:13:29,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 01:13:29,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:13:29,697 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 01:13:29,720 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 01:13:29,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 01:13:29,739 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-22 01:13:29,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-22 01:13:29,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 01:13:29,739 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2022-07-22 01:13:29,739 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2022-07-22 01:13:29,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 01:13:29,739 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-22 01:13:29,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-22 01:13:29,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 01:13:29,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 01:13:29,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 01:13:29,740 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2022-07-22 01:13:29,740 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2022-07-22 01:13:29,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 01:13:29,740 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2022-07-22 01:13:29,740 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2022-07-22 01:13:29,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 01:13:29,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 01:13:29,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 01:13:29,963 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 01:13:29,964 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 01:13:30,781 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 01:13:30,787 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 01:13:30,787 INFO L299 CfgBuilder]: Removed 63 assume(true) statements. [2022-07-22 01:13:30,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:13:30 BoogieIcfgContainer [2022-07-22 01:13:30,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 01:13:30,790 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 01:13:30,790 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 01:13:30,792 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 01:13:30,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 01:13:28" (1/3) ... [2022-07-22 01:13:30,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e316f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 01:13:30, skipping insertion in model container [2022-07-22 01:13:30,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:13:29" (2/3) ... [2022-07-22 01:13:30,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e316f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 01:13:30, skipping insertion in model container [2022-07-22 01:13:30,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:13:30" (3/3) ... [2022-07-22 01:13:30,794 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test6-1.i [2022-07-22 01:13:30,804 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 01:13:30,804 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-07-22 01:13:30,849 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 01:13:30,853 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@1a78097e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@57c3772d [2022-07-22 01:13:30,854 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-07-22 01:13:30,857 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 213 states have (on average 1.6525821596244132) internal successors, (352), 227 states have internal predecessors, (352), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-07-22 01:13:30,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-22 01:13:30,861 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:13:30,862 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:13:30,862 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-07-22 01:13:30,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:13:30,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1831503788, now seen corresponding path program 1 times [2022-07-22 01:13:30,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:13:30,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554326459] [2022-07-22 01:13:30,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:13:30,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:13:30,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:13:30,979 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 01:13:30,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:13:30,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554326459] [2022-07-22 01:13:30,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554326459] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:13:30,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:13:30,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 01:13:30,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891359688] [2022-07-22 01:13:30,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:13:30,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 01:13:30,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:13:31,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 01:13:31,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 01:13:31,013 INFO L87 Difference]: Start difference. First operand has 245 states, 213 states have (on average 1.6525821596244132) internal successors, (352), 227 states have internal predecessors, (352), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:13:31,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:13:31,077 INFO L93 Difference]: Finished difference Result 485 states and 764 transitions. [2022-07-22 01:13:31,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 01:13:31,080 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-22 01:13:31,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:13:31,093 INFO L225 Difference]: With dead ends: 485 [2022-07-22 01:13:31,093 INFO L226 Difference]: Without dead ends: 233 [2022-07-22 01:13:31,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 01:13:31,102 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:13:31,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:13:31,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-07-22 01:13:31,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2022-07-22 01:13:31,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 205 states have (on average 1.3317073170731708) internal successors, (273), 219 states have internal predecessors, (273), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-07-22 01:13:31,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 293 transitions. [2022-07-22 01:13:31,146 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 293 transitions. Word has length 8 [2022-07-22 01:13:31,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:13:31,147 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 293 transitions. [2022-07-22 01:13:31,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:13:31,147 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 293 transitions. [2022-07-22 01:13:31,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-22 01:13:31,147 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:13:31,148 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:13:31,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 01:13:31,148 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-07-22 01:13:31,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:13:31,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1831505710, now seen corresponding path program 1 times [2022-07-22 01:13:31,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:13:31,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924792875] [2022-07-22 01:13:31,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:13:31,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:13:31,193 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:13:31,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [648567288] [2022-07-22 01:13:31,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:13:31,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:13:31,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:13:31,200 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 01:13:31,201 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 01:13:31,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:13:31,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-22 01:13:31,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:13:31,387 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-22 01:13:31,395 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-22 01:13:31,423 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-22 01:13:31,424 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-07-22 01:13:31,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 01:13:31,481 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-07-22 01:13:31,492 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 01:13:31,492 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:13:31,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:13:31,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924792875] [2022-07-22 01:13:31,493 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:13:31,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648567288] [2022-07-22 01:13:31,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648567288] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:13:31,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:13:31,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 01:13:31,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409920533] [2022-07-22 01:13:31,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:13:31,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 01:13:31,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:13:31,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 01:13:31,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 01:13:31,503 INFO L87 Difference]: Start difference. First operand 233 states and 293 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:13:32,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:13:32,002 INFO L93 Difference]: Finished difference Result 357 states and 457 transitions. [2022-07-22 01:13:32,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 01:13:32,002 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-22 01:13:32,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:13:32,004 INFO L225 Difference]: With dead ends: 357 [2022-07-22 01:13:32,005 INFO L226 Difference]: Without dead ends: 355 [2022-07-22 01:13:32,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-22 01:13:32,005 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 242 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 01:13:32,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 1121 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 01:13:32,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-07-22 01:13:32,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 240. [2022-07-22 01:13:32,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 212 states have (on average 1.3254716981132075) internal successors, (281), 226 states have internal predecessors, (281), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-07-22 01:13:32,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 301 transitions. [2022-07-22 01:13:32,015 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 301 transitions. Word has length 8 [2022-07-22 01:13:32,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:13:32,015 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 301 transitions. [2022-07-22 01:13:32,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:13:32,016 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 301 transitions. [2022-07-22 01:13:32,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-22 01:13:32,017 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:13:32,017 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] [2022-07-22 01:13:32,037 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 01:13:32,229 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 01:13:32,229 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-07-22 01:13:32,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:13:32,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1327424248, now seen corresponding path program 1 times [2022-07-22 01:13:32,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:13:32,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935602545] [2022-07-22 01:13:32,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:13:32,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:13:32,253 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:13:32,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [217660979] [2022-07-22 01:13:32,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:13:32,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:13:32,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:13:32,255 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 01:13:32,256 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 01:13:32,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:13:32,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 01:13:32,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:13:32,431 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 01:13:32,431 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:13:32,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:13:32,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935602545] [2022-07-22 01:13:32,432 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:13:32,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217660979] [2022-07-22 01:13:32,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217660979] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:13:32,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:13:32,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 01:13:32,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470253360] [2022-07-22 01:13:32,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:13:32,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 01:13:32,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:13:32,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:13:32,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:13:32,435 INFO L87 Difference]: Start difference. First operand 240 states and 301 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:13:32,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:13:32,485 INFO L93 Difference]: Finished difference Result 492 states and 623 transitions. [2022-07-22 01:13:32,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:13:32,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-07-22 01:13:32,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:13:32,486 INFO L225 Difference]: With dead ends: 492 [2022-07-22 01:13:32,487 INFO L226 Difference]: Without dead ends: 261 [2022-07-22 01:13:32,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 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 01:13:32,488 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 9 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:13:32,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 531 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:13:32,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-07-22 01:13:32,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 260. [2022-07-22 01:13:32,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 232 states have (on average 1.2974137931034482) internal successors, (301), 246 states have internal predecessors, (301), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-07-22 01:13:32,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 321 transitions. [2022-07-22 01:13:32,495 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 321 transitions. Word has length 45 [2022-07-22 01:13:32,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:13:32,503 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 321 transitions. [2022-07-22 01:13:32,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:13:32,504 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 321 transitions. [2022-07-22 01:13:32,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-22 01:13:32,507 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:13:32,507 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] [2022-07-22 01:13:32,528 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 01:13:32,722 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 01:13:32,723 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-07-22 01:13:32,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:13:32,723 INFO L85 PathProgramCache]: Analyzing trace with hash 485811060, now seen corresponding path program 1 times [2022-07-22 01:13:32,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:13:32,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571014351] [2022-07-22 01:13:32,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:13:32,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:13:32,743 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:13:32,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1453378033] [2022-07-22 01:13:32,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:13:32,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:13:32,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:13:32,755 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 01:13:32,763 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 01:13:32,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:13:32,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 01:13:32,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:13:32,919 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 01:13:32,919 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:13:32,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:13:32,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571014351] [2022-07-22 01:13:32,920 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:13:32,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453378033] [2022-07-22 01:13:32,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453378033] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:13:32,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:13:32,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 01:13:32,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868527810] [2022-07-22 01:13:32,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:13:32,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 01:13:32,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:13:32,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 01:13:32,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 01:13:32,922 INFO L87 Difference]: Start difference. First operand 260 states and 321 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:13:32,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:13:32,969 INFO L93 Difference]: Finished difference Result 596 states and 746 transitions. [2022-07-22 01:13:32,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 01:13:32,970 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-07-22 01:13:32,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:13:32,972 INFO L225 Difference]: With dead ends: 596 [2022-07-22 01:13:32,972 INFO L226 Difference]: Without dead ends: 345 [2022-07-22 01:13:32,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 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 01:13:32,974 INFO L413 NwaCegarLoop]: 401 mSDtfsCounter, 232 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 966 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 01:13:32,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 966 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:13:32,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2022-07-22 01:13:32,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 246. [2022-07-22 01:13:32,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 218 states have (on average 1.2844036697247707) internal successors, (280), 232 states have internal predecessors, (280), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-07-22 01:13:32,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 300 transitions. [2022-07-22 01:13:32,984 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 300 transitions. Word has length 45 [2022-07-22 01:13:32,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:13:32,984 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 300 transitions. [2022-07-22 01:13:32,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:13:32,984 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 300 transitions. [2022-07-22 01:13:32,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-22 01:13:32,986 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:13:32,987 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] [2022-07-22 01:13:33,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-22 01:13:33,203 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 01:13:33,204 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-07-22 01:13:33,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:13:33,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1565710722, now seen corresponding path program 1 times [2022-07-22 01:13:33,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:13:33,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767685430] [2022-07-22 01:13:33,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:13:33,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:13:33,222 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:13:33,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [748423498] [2022-07-22 01:13:33,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:13:33,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:13:33,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:13:33,228 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 01:13:33,229 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 01:13:33,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:13:33,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 01:13:33,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:13:33,500 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 01:13:33,500 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:13:33,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:13:33,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767685430] [2022-07-22 01:13:33,501 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:13:33,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748423498] [2022-07-22 01:13:33,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [748423498] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:13:33,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:13:33,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 01:13:33,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380503066] [2022-07-22 01:13:33,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:13:33,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 01:13:33,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:13:33,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 01:13:33,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 01:13:33,503 INFO L87 Difference]: Start difference. First operand 246 states and 300 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:13:33,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:13:33,532 INFO L93 Difference]: Finished difference Result 427 states and 522 transitions. [2022-07-22 01:13:33,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 01:13:33,532 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-07-22 01:13:33,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:13:33,534 INFO L225 Difference]: With dead ends: 427 [2022-07-22 01:13:33,534 INFO L226 Difference]: Without dead ends: 425 [2022-07-22 01:13:33,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 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 01:13:33,535 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 171 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:13:33,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 843 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:13:33,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2022-07-22 01:13:33,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 415. [2022-07-22 01:13:33,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 382 states have (on average 1.2827225130890052) internal successors, (490), 397 states have internal predecessors, (490), 14 states have call successors, (14), 6 states have call predecessors, (14), 5 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2022-07-22 01:13:33,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 518 transitions. [2022-07-22 01:13:33,554 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 518 transitions. Word has length 45 [2022-07-22 01:13:33,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:13:33,555 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 518 transitions. [2022-07-22 01:13:33,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:13:33,555 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 518 transitions. [2022-07-22 01:13:33,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-22 01:13:33,556 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:13:33,556 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] [2022-07-22 01:13:33,577 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 01:13:33,757 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 01:13:33,757 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-07-22 01:13:33,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:13:33,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1292392160, now seen corresponding path program 1 times [2022-07-22 01:13:33,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:13:33,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301279301] [2022-07-22 01:13:33,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:13:33,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:13:33,793 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:13:33,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1977466134] [2022-07-22 01:13:33,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:13:33,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:13:33,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:13:33,800 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 01:13:33,801 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 01:13:33,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:13:33,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 01:13:33,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:13:34,032 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 01:13:34,032 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:13:34,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:13:34,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301279301] [2022-07-22 01:13:34,033 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:13:34,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977466134] [2022-07-22 01:13:34,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1977466134] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:13:34,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:13:34,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 01:13:34,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019771640] [2022-07-22 01:13:34,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:13:34,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 01:13:34,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:13:34,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 01:13:34,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 01:13:34,034 INFO L87 Difference]: Start difference. First operand 415 states and 518 transitions. Second operand has 4 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:13:34,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:13:34,105 INFO L93 Difference]: Finished difference Result 723 states and 914 transitions. [2022-07-22 01:13:34,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 01:13:34,106 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-07-22 01:13:34,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:13:34,108 INFO L225 Difference]: With dead ends: 723 [2022-07-22 01:13:34,108 INFO L226 Difference]: Without dead ends: 721 [2022-07-22 01:13:34,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 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 01:13:34,109 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 226 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:13:34,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 848 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:13:34,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2022-07-22 01:13:34,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 710. [2022-07-22 01:13:34,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 666 states have (on average 1.2942942942942943) internal successors, (862), 682 states have internal predecessors, (862), 23 states have call successors, (23), 10 states have call predecessors, (23), 7 states have return successors, (26), 18 states have call predecessors, (26), 23 states have call successors, (26) [2022-07-22 01:13:34,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 911 transitions. [2022-07-22 01:13:34,129 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 911 transitions. Word has length 46 [2022-07-22 01:13:34,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:13:34,129 INFO L495 AbstractCegarLoop]: Abstraction has 710 states and 911 transitions. [2022-07-22 01:13:34,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:13:34,129 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 911 transitions. [2022-07-22 01:13:34,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-22 01:13:34,130 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:13:34,130 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] [2022-07-22 01:13:34,155 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 01:13:34,343 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 01:13:34,344 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-07-22 01:13:34,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:13:34,344 INFO L85 PathProgramCache]: Analyzing trace with hash -2118750223, now seen corresponding path program 1 times [2022-07-22 01:13:34,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:13:34,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395535839] [2022-07-22 01:13:34,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:13:34,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:13:34,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:13:34,407 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 01:13:34,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:13:34,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395535839] [2022-07-22 01:13:34,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395535839] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:13:34,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:13:34,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 01:13:34,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681516460] [2022-07-22 01:13:34,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:13:34,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 01:13:34,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:13:34,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 01:13:34,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 01:13:34,409 INFO L87 Difference]: Start difference. First operand 710 states and 911 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:13:34,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:13:34,615 INFO L93 Difference]: Finished difference Result 1147 states and 1491 transitions. [2022-07-22 01:13:34,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 01:13:34,616 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-07-22 01:13:34,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:13:34,619 INFO L225 Difference]: With dead ends: 1147 [2022-07-22 01:13:34,620 INFO L226 Difference]: Without dead ends: 954 [2022-07-22 01:13:34,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 01:13:34,621 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 108 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 01:13:34,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 753 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 01:13:34,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2022-07-22 01:13:34,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 710. [2022-07-22 01:13:34,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 666 states have (on average 1.2927927927927927) internal successors, (861), 682 states have internal predecessors, (861), 23 states have call successors, (23), 10 states have call predecessors, (23), 7 states have return successors, (26), 18 states have call predecessors, (26), 23 states have call successors, (26) [2022-07-22 01:13:34,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 910 transitions. [2022-07-22 01:13:34,638 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 910 transitions. Word has length 49 [2022-07-22 01:13:34,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:13:34,638 INFO L495 AbstractCegarLoop]: Abstraction has 710 states and 910 transitions. [2022-07-22 01:13:34,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:13:34,639 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 910 transitions. [2022-07-22 01:13:34,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-22 01:13:34,639 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:13:34,639 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] [2022-07-22 01:13:34,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-22 01:13:34,640 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-07-22 01:13:34,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:13:34,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1422172071, now seen corresponding path program 1 times [2022-07-22 01:13:34,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:13:34,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876027882] [2022-07-22 01:13:34,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:13:34,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:13:34,658 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:13:34,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1157701852] [2022-07-22 01:13:34,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:13:34,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:13:34,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:13:34,660 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 01:13:34,661 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 01:13:34,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:13:34,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:13:34,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:13:34,882 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 01:13:34,882 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:13:34,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:13:34,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876027882] [2022-07-22 01:13:34,883 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:13:34,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157701852] [2022-07-22 01:13:34,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157701852] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:13:34,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:13:34,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-22 01:13:34,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123693092] [2022-07-22 01:13:34,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:13:34,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 01:13:34,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:13:34,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:13:34,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:13:34,885 INFO L87 Difference]: Start difference. First operand 710 states and 910 transitions. Second operand has 3 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 01:13:34,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:13:34,904 INFO L93 Difference]: Finished difference Result 739 states and 933 transitions. [2022-07-22 01:13:34,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:13:34,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 55 [2022-07-22 01:13:34,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:13:34,908 INFO L225 Difference]: With dead ends: 739 [2022-07-22 01:13:34,908 INFO L226 Difference]: Without dead ends: 738 [2022-07-22 01:13:34,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 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 01:13:34,909 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 179 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:13:34,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 572 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:13:34,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2022-07-22 01:13:34,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 728. [2022-07-22 01:13:34,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 679 states have (on average 1.288659793814433) internal successors, (875), 696 states have internal predecessors, (875), 26 states have call successors, (26), 12 states have call predecessors, (26), 9 states have return successors, (29), 21 states have call predecessors, (29), 26 states have call successors, (29) [2022-07-22 01:13:34,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 930 transitions. [2022-07-22 01:13:34,930 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 930 transitions. Word has length 55 [2022-07-22 01:13:34,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:13:34,931 INFO L495 AbstractCegarLoop]: Abstraction has 728 states and 930 transitions. [2022-07-22 01:13:34,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 01:13:34,931 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 930 transitions. [2022-07-22 01:13:34,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-22 01:13:34,932 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:13:34,932 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 01:13:34,964 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 01:13:35,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:13:35,144 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-07-22 01:13:35,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:13:35,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1137661302, now seen corresponding path program 1 times [2022-07-22 01:13:35,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:13:35,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784755447] [2022-07-22 01:13:35,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:13:35,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:13:35,162 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:13:35,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2113201089] [2022-07-22 01:13:35,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:13:35,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:13:35,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:13:35,171 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 01:13:35,175 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 01:13:35,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:13:35,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:13:35,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:13:35,418 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 01:13:35,418 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:13:35,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:13:35,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784755447] [2022-07-22 01:13:35,418 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:13:35,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113201089] [2022-07-22 01:13:35,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113201089] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:13:35,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:13:35,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-22 01:13:35,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181704607] [2022-07-22 01:13:35,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:13:35,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 01:13:35,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:13:35,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:13:35,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:13:35,420 INFO L87 Difference]: Start difference. First operand 728 states and 930 transitions. Second operand has 3 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 01:13:35,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:13:35,434 INFO L93 Difference]: Finished difference Result 728 states and 930 transitions. [2022-07-22 01:13:35,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:13:35,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2022-07-22 01:13:35,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:13:35,437 INFO L225 Difference]: With dead ends: 728 [2022-07-22 01:13:35,437 INFO L226 Difference]: Without dead ends: 727 [2022-07-22 01:13:35,437 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 01:13:35,438 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 229 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:13:35,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 282 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:13:35,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2022-07-22 01:13:35,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 727. [2022-07-22 01:13:35,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 727 states, 679 states have (on average 1.2857142857142858) internal successors, (873), 695 states have internal predecessors, (873), 26 states have call successors, (26), 12 states have call predecessors, (26), 9 states have return successors, (29), 21 states have call predecessors, (29), 26 states have call successors, (29) [2022-07-22 01:13:35,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 928 transitions. [2022-07-22 01:13:35,454 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 928 transitions. Word has length 56 [2022-07-22 01:13:35,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:13:35,454 INFO L495 AbstractCegarLoop]: Abstraction has 727 states and 928 transitions. [2022-07-22 01:13:35,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 01:13:35,455 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 928 transitions. [2022-07-22 01:13:35,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-22 01:13:35,455 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:13:35,455 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] [2022-07-22 01:13:35,475 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 01:13:35,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:13:35,677 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-07-22 01:13:35,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:13:35,678 INFO L85 PathProgramCache]: Analyzing trace with hash -906147032, now seen corresponding path program 1 times [2022-07-22 01:13:35,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:13:35,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761376040] [2022-07-22 01:13:35,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:13:35,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:13:35,756 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:13:35,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1154172630] [2022-07-22 01:13:35,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:13:35,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:13:35,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:13:35,758 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 01:13:35,759 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 01:13:36,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:13:36,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 1557 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 01:13:36,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:13:36,358 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 01:13:36,358 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:13:36,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:13:36,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761376040] [2022-07-22 01:13:36,359 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:13:36,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154172630] [2022-07-22 01:13:36,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154172630] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:13:36,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:13:36,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 01:13:36,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333928650] [2022-07-22 01:13:36,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:13:36,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 01:13:36,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:13:36,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:13:36,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:13:36,361 INFO L87 Difference]: Start difference. First operand 727 states and 928 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:13:36,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:13:36,443 INFO L93 Difference]: Finished difference Result 1367 states and 1741 transitions. [2022-07-22 01:13:36,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:13:36,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-07-22 01:13:36,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:13:36,446 INFO L225 Difference]: With dead ends: 1367 [2022-07-22 01:13:36,446 INFO L226 Difference]: Without dead ends: 649 [2022-07-22 01:13:36,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 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 01:13:36,448 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 103 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 01:13:36,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 575 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 01:13:36,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2022-07-22 01:13:36,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 640. [2022-07-22 01:13:36,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 598 states have (on average 1.2775919732441472) internal successors, (764), 613 states have internal predecessors, (764), 21 states have call successors, (21), 10 states have call predecessors, (21), 8 states have return successors, (24), 18 states have call predecessors, (24), 21 states have call successors, (24) [2022-07-22 01:13:36,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 809 transitions. [2022-07-22 01:13:36,462 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 809 transitions. Word has length 58 [2022-07-22 01:13:36,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:13:36,463 INFO L495 AbstractCegarLoop]: Abstraction has 640 states and 809 transitions. [2022-07-22 01:13:36,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:13:36,463 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 809 transitions. [2022-07-22 01:13:36,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-22 01:13:36,463 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:13:36,464 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 01:13:36,486 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 01:13:36,683 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,SelfDestructingSolverStorable9 [2022-07-22 01:13:36,684 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-07-22 01:13:36,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:13:36,684 INFO L85 PathProgramCache]: Analyzing trace with hash 804842726, now seen corresponding path program 1 times [2022-07-22 01:13:36,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:13:36,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981435710] [2022-07-22 01:13:36,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:13:36,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:13:36,714 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:13:36,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [959290694] [2022-07-22 01:13:36,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:13:36,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:13:36,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:13:36,735 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 01:13:36,736 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 01:13:36,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:13:37,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-22 01:13:37,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:13:37,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:13:37,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:13:37,253 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:13:37,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:13:37,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981435710] [2022-07-22 01:13:37,254 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:13:37,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959290694] [2022-07-22 01:13:37,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959290694] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:13:37,254 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 01:13:37,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 13 [2022-07-22 01:13:37,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482839503] [2022-07-22 01:13:37,255 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 01:13:37,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-22 01:13:37,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:13:37,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-22 01:13:37,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-07-22 01:13:37,275 INFO L87 Difference]: Start difference. First operand 640 states and 809 transitions. Second operand has 14 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 states have internal predecessors, (118), 4 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-22 01:13:37,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:13:37,771 INFO L93 Difference]: Finished difference Result 2064 states and 2645 transitions. [2022-07-22 01:13:37,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-22 01:13:37,771 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 states have internal predecessors, (118), 4 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) Word has length 64 [2022-07-22 01:13:37,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:13:37,777 INFO L225 Difference]: With dead ends: 2064 [2022-07-22 01:13:37,777 INFO L226 Difference]: Without dead ends: 2062 [2022-07-22 01:13:37,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=273, Invalid=597, Unknown=0, NotChecked=0, Total=870 [2022-07-22 01:13:37,779 INFO L413 NwaCegarLoop]: 621 mSDtfsCounter, 1422 mSDsluCounter, 3716 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1429 SdHoareTripleChecker+Valid, 4337 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 01:13:37,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1429 Valid, 4337 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 01:13:37,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2062 states. [2022-07-22 01:13:37,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2062 to 1830. [2022-07-22 01:13:37,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1830 states, 1738 states have (on average 1.2836593785960875) internal successors, (2231), 1755 states have internal predecessors, (2231), 60 states have call successors, (60), 24 states have call predecessors, (60), 19 states have return successors, (81), 51 states have call predecessors, (81), 60 states have call successors, (81) [2022-07-22 01:13:37,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1830 states to 1830 states and 2372 transitions. [2022-07-22 01:13:37,831 INFO L78 Accepts]: Start accepts. Automaton has 1830 states and 2372 transitions. Word has length 64 [2022-07-22 01:13:37,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:13:37,832 INFO L495 AbstractCegarLoop]: Abstraction has 1830 states and 2372 transitions. [2022-07-22 01:13:37,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 states have internal predecessors, (118), 4 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-22 01:13:37,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1830 states and 2372 transitions. [2022-07-22 01:13:37,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-22 01:13:37,833 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:13:37,833 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] [2022-07-22 01:13:37,859 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 01:13:38,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:13:38,047 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-07-22 01:13:38,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:13:38,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1176759637, now seen corresponding path program 1 times [2022-07-22 01:13:38,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:13:38,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249611643] [2022-07-22 01:13:38,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:13:38,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:13:38,082 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:13:38,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1653679944] [2022-07-22 01:13:38,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:13:38,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:13:38,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:13:38,084 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 01:13:38,111 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 01:13:38,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:13:38,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 01:13:38,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:13:38,490 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:13:38,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:13:38,609 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-22 01:13:38,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:13:38,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249611643] [2022-07-22 01:13:38,609 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:13:38,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653679944] [2022-07-22 01:13:38,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653679944] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:13:38,610 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 01:13:38,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2022-07-22 01:13:38,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001116857] [2022-07-22 01:13:38,610 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 01:13:38,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-22 01:13:38,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:13:38,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-22 01:13:38,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-07-22 01:13:38,611 INFO L87 Difference]: Start difference. First operand 1830 states and 2372 transitions. Second operand has 10 states, 9 states have (on average 14.222222222222221) internal successors, (128), 10 states have internal predecessors, (128), 4 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-07-22 01:13:38,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:13:38,908 INFO L93 Difference]: Finished difference Result 3333 states and 4309 transitions. [2022-07-22 01:13:38,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 01:13:38,909 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.222222222222221) internal successors, (128), 10 states have internal predecessors, (128), 4 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 74 [2022-07-22 01:13:38,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:13:38,919 INFO L225 Difference]: With dead ends: 3333 [2022-07-22 01:13:38,919 INFO L226 Difference]: Without dead ends: 3332 [2022-07-22 01:13:38,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=165, Unknown=0, NotChecked=0, Total=272 [2022-07-22 01:13:38,921 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 715 mSDsluCounter, 1712 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 1999 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 01:13:38,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 1999 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 01:13:38,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3332 states. [2022-07-22 01:13:38,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3332 to 2995. [2022-07-22 01:13:38,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2995 states, 2839 states have (on average 1.280028178936245) internal successors, (3634), 2856 states have internal predecessors, (3634), 102 states have call successors, (102), 51 states have call predecessors, (102), 41 states have return successors, (135), 88 states have call predecessors, (135), 102 states have call successors, (135) [2022-07-22 01:13:38,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2995 states to 2995 states and 3871 transitions. [2022-07-22 01:13:38,996 INFO L78 Accepts]: Start accepts. Automaton has 2995 states and 3871 transitions. Word has length 74 [2022-07-22 01:13:38,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:13:38,997 INFO L495 AbstractCegarLoop]: Abstraction has 2995 states and 3871 transitions. [2022-07-22 01:13:38,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.222222222222221) internal successors, (128), 10 states have internal predecessors, (128), 4 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-07-22 01:13:38,997 INFO L276 IsEmpty]: Start isEmpty. Operand 2995 states and 3871 transitions. [2022-07-22 01:13:38,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-22 01:13:38,998 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:13:38,998 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:13:39,021 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 01:13:39,207 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,SelfDestructingSolverStorable11 [2022-07-22 01:13:39,207 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-07-22 01:13:39,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:13:39,208 INFO L85 PathProgramCache]: Analyzing trace with hash 573613648, now seen corresponding path program 1 times [2022-07-22 01:13:39,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:13:39,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333514414] [2022-07-22 01:13:39,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:13:39,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:13:39,241 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:13:39,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1943976577] [2022-07-22 01:13:39,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:13:39,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:13:39,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:13:39,256 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 01:13:39,257 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 01:13:39,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:13:39,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 19 conjunts are in the unsatisfiable core [2022-07-22 01:13:39,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:13:39,726 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-22 01:13:39,726 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:13:39,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:13:39,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333514414] [2022-07-22 01:13:39,726 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:13:39,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943976577] [2022-07-22 01:13:39,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1943976577] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:13:39,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:13:39,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 01:13:39,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031257496] [2022-07-22 01:13:39,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:13:39,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 01:13:39,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:13:39,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 01:13:39,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-22 01:13:39,729 INFO L87 Difference]: Start difference. First operand 2995 states and 3871 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 01:13:39,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:13:39,895 INFO L93 Difference]: Finished difference Result 5929 states and 7675 transitions. [2022-07-22 01:13:39,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 01:13:39,896 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 96 [2022-07-22 01:13:39,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:13:39,904 INFO L225 Difference]: With dead ends: 5929 [2022-07-22 01:13:39,904 INFO L226 Difference]: Without dead ends: 2995 [2022-07-22 01:13:39,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-07-22 01:13:39,911 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 40 mSDsluCounter, 991 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 1264 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 01:13:39,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 1264 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 01:13:39,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2995 states. [2022-07-22 01:13:39,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2995 to 2995. [2022-07-22 01:13:39,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2995 states, 2839 states have (on average 1.2796759422331807) internal successors, (3633), 2855 states have internal predecessors, (3633), 102 states have call successors, (102), 51 states have call predecessors, (102), 41 states have return successors, (135), 88 states have call predecessors, (135), 102 states have call successors, (135) [2022-07-22 01:13:39,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2995 states to 2995 states and 3870 transitions. [2022-07-22 01:13:39,980 INFO L78 Accepts]: Start accepts. Automaton has 2995 states and 3870 transitions. Word has length 96 [2022-07-22 01:13:39,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:13:39,980 INFO L495 AbstractCegarLoop]: Abstraction has 2995 states and 3870 transitions. [2022-07-22 01:13:39,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 01:13:39,981 INFO L276 IsEmpty]: Start isEmpty. Operand 2995 states and 3870 transitions. [2022-07-22 01:13:39,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-22 01:13:39,982 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:13:39,982 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:13:40,010 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 01:13:40,195 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,SelfDestructingSolverStorable12 [2022-07-22 01:13:40,195 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-07-22 01:13:40,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:13:40,196 INFO L85 PathProgramCache]: Analyzing trace with hash 120930980, now seen corresponding path program 1 times [2022-07-22 01:13:40,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:13:40,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946417770] [2022-07-22 01:13:40,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:13:40,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:13:40,238 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:13:40,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [398936001] [2022-07-22 01:13:40,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:13:40,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:13:40,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:13:40,240 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 01:13:40,240 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 01:13:40,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:13:40,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-22 01:13:40,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:13:40,723 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:13:40,723 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:13:40,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:13:40,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946417770] [2022-07-22 01:13:40,724 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:13:40,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398936001] [2022-07-22 01:13:40,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398936001] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:13:40,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:13:40,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-22 01:13:40,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455316764] [2022-07-22 01:13:40,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:13:40,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 01:13:40,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:13:40,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 01:13:40,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 01:13:40,726 INFO L87 Difference]: Start difference. First operand 2995 states and 3870 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-07-22 01:13:40,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:13:40,874 INFO L93 Difference]: Finished difference Result 4984 states and 6449 transitions. [2022-07-22 01:13:40,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-22 01:13:40,875 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 101 [2022-07-22 01:13:40,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:13:40,880 INFO L225 Difference]: With dead ends: 4984 [2022-07-22 01:13:40,881 INFO L226 Difference]: Without dead ends: 2031 [2022-07-22 01:13:40,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-07-22 01:13:40,886 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 31 mSDsluCounter, 1864 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 2136 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 01:13:40,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 2136 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 01:13:40,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2031 states. [2022-07-22 01:13:40,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2031 to 2029. [2022-07-22 01:13:40,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2029 states, 1914 states have (on average 1.2795193312434692) internal successors, (2449), 1931 states have internal predecessors, (2449), 63 states have call successors, (63), 43 states have call predecessors, (63), 39 states have return successors, (75), 54 states have call predecessors, (75), 63 states have call successors, (75) [2022-07-22 01:13:40,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2029 states to 2029 states and 2587 transitions. [2022-07-22 01:13:40,963 INFO L78 Accepts]: Start accepts. Automaton has 2029 states and 2587 transitions. Word has length 101 [2022-07-22 01:13:40,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:13:40,964 INFO L495 AbstractCegarLoop]: Abstraction has 2029 states and 2587 transitions. [2022-07-22 01:13:40,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-07-22 01:13:40,964 INFO L276 IsEmpty]: Start isEmpty. Operand 2029 states and 2587 transitions. [2022-07-22 01:13:40,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-22 01:13:40,965 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:13:40,966 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:13:40,989 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 01:13:41,183 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,SelfDestructingSolverStorable13 [2022-07-22 01:13:41,183 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-07-22 01:13:41,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:13:41,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1967918926, now seen corresponding path program 1 times [2022-07-22 01:13:41,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:13:41,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107403959] [2022-07-22 01:13:41,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:13:41,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:13:41,218 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:13:41,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [124325459] [2022-07-22 01:13:41,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:13:41,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:13:41,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:13:41,224 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 01:13:41,226 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 01:13:41,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:13:41,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 806 conjuncts, 20 conjunts are in the unsatisfiable core [2022-07-22 01:13:41,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:13:41,798 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 01:13:41,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:13:41,935 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-22 01:13:41,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:13:41,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107403959] [2022-07-22 01:13:41,936 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:13:41,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124325459] [2022-07-22 01:13:41,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124325459] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:13:41,936 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 01:13:41,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6] total 14 [2022-07-22 01:13:41,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354364862] [2022-07-22 01:13:41,939 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 01:13:41,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-22 01:13:41,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:13:41,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-22 01:13:41,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-07-22 01:13:41,940 INFO L87 Difference]: Start difference. First operand 2029 states and 2587 transitions. Second operand has 14 states, 14 states have (on average 8.357142857142858) internal successors, (117), 14 states have internal predecessors, (117), 3 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-22 01:13:42,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:13:42,263 INFO L93 Difference]: Finished difference Result 4098 states and 5264 transitions. [2022-07-22 01:13:42,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-22 01:13:42,264 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.357142857142858) internal successors, (117), 14 states have internal predecessors, (117), 3 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 103 [2022-07-22 01:13:42,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:13:42,270 INFO L225 Difference]: With dead ends: 4098 [2022-07-22 01:13:42,270 INFO L226 Difference]: Without dead ends: 2120 [2022-07-22 01:13:42,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=464, Unknown=0, NotChecked=0, Total=600 [2022-07-22 01:13:42,274 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 67 mSDsluCounter, 2685 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 2960 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 01:13:42,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 2960 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 01:13:42,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2120 states. [2022-07-22 01:13:42,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2120 to 2087. [2022-07-22 01:13:42,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2087 states, 1970 states have (on average 1.2857868020304568) internal successors, (2533), 1983 states have internal predecessors, (2533), 63 states have call successors, (63), 49 states have call predecessors, (63), 41 states have return successors, (71), 54 states have call predecessors, (71), 63 states have call successors, (71) [2022-07-22 01:13:42,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2087 states to 2087 states and 2667 transitions. [2022-07-22 01:13:42,319 INFO L78 Accepts]: Start accepts. Automaton has 2087 states and 2667 transitions. Word has length 103 [2022-07-22 01:13:42,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:13:42,319 INFO L495 AbstractCegarLoop]: Abstraction has 2087 states and 2667 transitions. [2022-07-22 01:13:42,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.357142857142858) internal successors, (117), 14 states have internal predecessors, (117), 3 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-22 01:13:42,319 INFO L276 IsEmpty]: Start isEmpty. Operand 2087 states and 2667 transitions. [2022-07-22 01:13:42,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-22 01:13:42,320 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:13:42,320 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:13:42,344 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 01:13:42,536 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,SelfDestructingSolverStorable14 [2022-07-22 01:13:42,536 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-07-22 01:13:42,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:13:42,536 INFO L85 PathProgramCache]: Analyzing trace with hash -183406268, now seen corresponding path program 2 times [2022-07-22 01:13:42,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:13:42,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904249053] [2022-07-22 01:13:42,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:13:42,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:13:42,585 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:13:42,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [305934688] [2022-07-22 01:13:42,586 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 01:13:42,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:13:42,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:13:42,593 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 01:13:42,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process