./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 791161d1 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_SFH_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 7743788eb05cb3443d5449a0c3250a50955573eb924e62e5cc797e3ef82e3ba3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 14:05:55,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 14:05:55,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 14:05:55,649 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 14:05:55,649 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 14:05:55,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 14:05:55,651 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 14:05:55,652 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 14:05:55,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 14:05:55,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 14:05:55,660 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 14:05:55,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 14:05:55,663 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 14:05:55,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 14:05:55,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 14:05:55,668 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 14:05:55,669 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 14:05:55,671 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 14:05:55,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 14:05:55,680 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 14:05:55,681 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 14:05:55,682 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 14:05:55,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 14:05:55,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 14:05:55,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 14:05:55,691 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 14:05:55,691 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 14:05:55,692 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 14:05:55,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 14:05:55,693 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 14:05:55,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 14:05:55,695 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 14:05:55,696 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 14:05:55,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 14:05:55,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 14:05:55,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 14:05:55,698 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 14:05:55,699 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 14:05:55,699 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 14:05:55,699 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 14:05:55,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 14:05:55,701 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 14:05:55,703 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-23 14:05:55,730 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 14:05:55,731 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 14:05:55,731 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 14:05:55,731 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 14:05:55,732 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 14:05:55,732 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 14:05:55,733 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 14:05:55,733 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 14:05:55,733 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 14:05:55,734 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 14:05:55,734 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-23 14:05:55,734 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 14:05:55,734 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 14:05:55,734 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-23 14:05:55,734 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 14:05:55,735 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 14:05:55,735 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 14:05:55,735 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 14:05:55,735 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-23 14:05:55,735 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-23 14:05:55,735 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 14:05:55,736 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 14:05:55,736 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 14:05:55,736 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 14:05:55,736 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 14:05:55,736 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 14:05:55,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 14:05:55,737 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 14:05:55,737 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 14:05:55,737 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 14:05:55,737 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 14:05:55,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 14:05:55,738 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 14:05:55,738 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7743788eb05cb3443d5449a0c3250a50955573eb924e62e5cc797e3ef82e3ba3 [2022-07-23 14:05:55,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 14:05:55,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 14:05:55,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 14:05:55,950 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 14:05:55,950 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 14:05:55,951 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i [2022-07-23 14:05:56,000 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8659fd695/8f605bc8fddc4f2c87e4eb3b52072828/FLAGa5ce8a647 [2022-07-23 14:05:56,470 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 14:05:56,483 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i [2022-07-23 14:05:56,496 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8659fd695/8f605bc8fddc4f2c87e4eb3b52072828/FLAGa5ce8a647 [2022-07-23 14:05:56,795 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8659fd695/8f605bc8fddc4f2c87e4eb3b52072828 [2022-07-23 14:05:56,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 14:05:56,798 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 14:05:56,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 14:05:56,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 14:05:56,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 14:05:56,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:05:56" (1/1) ... [2022-07-23 14:05:56,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39fcb814 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:05:56, skipping insertion in model container [2022-07-23 14:05:56,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:05:56" (1/1) ... [2022-07-23 14:05:56,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 14:05:56,862 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 14:05:57,284 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_SFH_test6-1.i[44118,44131] [2022-07-23 14:05:57,302 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_SFH_test6-1.i[44660,44673] [2022-07-23 14:05:57,393 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_SFH_test6-1.i[56247,56260] [2022-07-23 14:05:57,394 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_SFH_test6-1.i[56368,56381] [2022-07-23 14:05:57,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 14:05:57,414 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 14:05:57,444 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_SFH_test6-1.i[44118,44131] [2022-07-23 14:05:57,448 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_SFH_test6-1.i[44660,44673] [2022-07-23 14:05:57,508 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_SFH_test6-1.i[56247,56260] [2022-07-23 14:05:57,512 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_SFH_test6-1.i[56368,56381] [2022-07-23 14:05:57,514 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 14:05:57,572 INFO L208 MainTranslator]: Completed translation [2022-07-23 14:05:57,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:05:57 WrapperNode [2022-07-23 14:05:57,573 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 14:05:57,575 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 14:05:57,575 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 14:05:57,575 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 14:05:57,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:05:57" (1/1) ... [2022-07-23 14:05:57,629 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:05:57" (1/1) ... [2022-07-23 14:05:57,692 INFO L137 Inliner]: procedures = 282, calls = 294, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1050 [2022-07-23 14:05:57,692 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 14:05:57,693 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 14:05:57,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 14:05:57,693 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 14:05:57,700 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:05:57" (1/1) ... [2022-07-23 14:05:57,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:05:57" (1/1) ... [2022-07-23 14:05:57,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:05:57" (1/1) ... [2022-07-23 14:05:57,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:05:57" (1/1) ... [2022-07-23 14:05:57,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:05:57" (1/1) ... [2022-07-23 14:05:57,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:05:57" (1/1) ... [2022-07-23 14:05:57,745 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:05:57" (1/1) ... [2022-07-23 14:05:57,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 14:05:57,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 14:05:57,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 14:05:57,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 14:05:57,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:05:57" (1/1) ... [2022-07-23 14:05:57,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 14:05:57,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:05:57,792 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) [2022-07-23 14:05:57,815 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 [2022-07-23 14:05:57,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 14:05:57,833 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-23 14:05:57,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 14:05:57,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 14:05:57,833 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2022-07-23 14:05:57,833 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2022-07-23 14:05:57,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-23 14:05:57,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-23 14:05:57,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-23 14:05:57,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-23 14:05:57,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 14:05:57,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 14:05:57,834 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2022-07-23 14:05:57,834 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2022-07-23 14:05:57,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 14:05:57,835 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2022-07-23 14:05:57,835 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2022-07-23 14:05:57,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 14:05:57,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 14:05:57,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 14:05:58,031 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 14:05:58,034 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 14:05:58,902 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 14:05:58,916 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 14:05:58,917 INFO L299 CfgBuilder]: Removed 63 assume(true) statements. [2022-07-23 14:05:58,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:05:58 BoogieIcfgContainer [2022-07-23 14:05:58,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 14:05:58,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 14:05:58,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 14:05:58,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 14:05:58,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 02:05:56" (1/3) ... [2022-07-23 14:05:58,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4782cc19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 02:05:58, skipping insertion in model container [2022-07-23 14:05:58,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:05:57" (2/3) ... [2022-07-23 14:05:58,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4782cc19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 02:05:58, skipping insertion in model container [2022-07-23 14:05:58,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:05:58" (3/3) ... [2022-07-23 14:05:58,930 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test6-1.i [2022-07-23 14:05:58,942 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 14:05:58,942 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-07-23 14:05:58,994 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 14:05:58,998 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@24ff8022, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3c5af365 [2022-07-23 14:05:58,999 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-07-23 14:05:59,003 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) [2022-07-23 14:05:59,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-23 14:05:59,020 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 14:05:59,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 14:05:59,021 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)] === [2022-07-23 14:05:59,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:05:59,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1831503788, now seen corresponding path program 1 times [2022-07-23 14:05:59,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:05:59,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082393969] [2022-07-23 14:05:59,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:05:59,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:05:59,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:05:59,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:05:59,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:05:59,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082393969] [2022-07-23 14:05:59,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082393969] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 14:05:59,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 14:05:59,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 14:05:59,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674224397] [2022-07-23 14:05:59,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 14:05:59,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-23 14:05:59,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:05:59,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-23 14:05:59,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-23 14:05:59,195 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) [2022-07-23 14:05:59,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:05:59,230 INFO L93 Difference]: Finished difference Result 485 states and 764 transitions. [2022-07-23 14:05:59,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-23 14:05:59,232 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 [2022-07-23 14:05:59,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 14:05:59,239 INFO L225 Difference]: With dead ends: 485 [2022-07-23 14:05:59,239 INFO L226 Difference]: Without dead ends: 233 [2022-07-23 14:05:59,242 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 [2022-07-23 14:05:59,245 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 [2022-07-23 14:05:59,246 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] [2022-07-23 14:05:59,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-07-23 14:05:59,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2022-07-23 14:05:59,292 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) [2022-07-23 14:05:59,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 293 transitions. [2022-07-23 14:05:59,300 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 293 transitions. Word has length 8 [2022-07-23 14:05:59,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 14:05:59,301 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 293 transitions. [2022-07-23 14:05:59,301 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) [2022-07-23 14:05:59,301 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 293 transitions. [2022-07-23 14:05:59,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-23 14:05:59,302 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 14:05:59,302 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 14:05:59,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 14:05:59,302 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)] === [2022-07-23 14:05:59,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:05:59,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1831505710, now seen corresponding path program 1 times [2022-07-23 14:05:59,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:05:59,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731641635] [2022-07-23 14:05:59,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:05:59,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:05:59,344 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-23 14:05:59,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [662731043] [2022-07-23 14:05:59,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:05:59,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 14:05:59,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:05:59,361 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) [2022-07-23 14:05:59,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-23 14:05:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:05:59,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-23 14:05:59,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:05:59,547 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 [2022-07-23 14:05:59,557 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 [2022-07-23 14:05:59,588 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-23 14:05:59,590 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 [2022-07-23 14:05:59,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-23 14:05:59,640 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 [2022-07-23 14:05:59,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:05:59,648 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 14:05:59,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:05:59,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731641635] [2022-07-23 14:05:59,649 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-23 14:05:59,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662731043] [2022-07-23 14:05:59,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662731043] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 14:05:59,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 14:05:59,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 14:05:59,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292252349] [2022-07-23 14:05:59,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 14:05:59,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 14:05:59,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:05:59,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 14:05:59,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 14:05:59,658 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) [2022-07-23 14:06:00,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:06:00,142 INFO L93 Difference]: Finished difference Result 357 states and 457 transitions. [2022-07-23 14:06:00,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 14:06:00,142 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 [2022-07-23 14:06:00,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 14:06:00,145 INFO L225 Difference]: With dead ends: 357 [2022-07-23 14:06:00,145 INFO L226 Difference]: Without dead ends: 355 [2022-07-23 14:06:00,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-23 14:06:00,146 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 242 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2022-07-23 14:06:00,146 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] [2022-07-23 14:06:00,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-07-23 14:06:00,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 240. [2022-07-23 14:06:00,163 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) [2022-07-23 14:06:00,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 301 transitions. [2022-07-23 14:06:00,165 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 301 transitions. Word has length 8 [2022-07-23 14:06:00,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 14:06:00,165 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 301 transitions. [2022-07-23 14:06:00,165 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) [2022-07-23 14:06:00,166 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 301 transitions. [2022-07-23 14:06:00,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-23 14:06:00,167 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 14:06:00,167 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] [2022-07-23 14:06:00,185 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-23 14:06:00,381 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 [2022-07-23 14:06:00,381 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)] === [2022-07-23 14:06:00,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:06:00,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1327424248, now seen corresponding path program 1 times [2022-07-23 14:06:00,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:06:00,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797531701] [2022-07-23 14:06:00,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:06:00,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:06:00,404 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-23 14:06:00,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [822457420] [2022-07-23 14:06:00,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:06:00,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 14:06:00,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:06:00,406 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) [2022-07-23 14:06:00,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-23 14:06:00,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:06:00,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 14:06:00,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:06:00,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:06:00,570 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 14:06:00,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:06:00,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797531701] [2022-07-23 14:06:00,571 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-23 14:06:00,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822457420] [2022-07-23 14:06:00,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822457420] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 14:06:00,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 14:06:00,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 14:06:00,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278750420] [2022-07-23 14:06:00,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 14:06:00,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 14:06:00,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:06:00,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 14:06:00,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 14:06:00,573 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) [2022-07-23 14:06:00,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:06:00,637 INFO L93 Difference]: Finished difference Result 492 states and 623 transitions. [2022-07-23 14:06:00,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 14:06:00,638 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 [2022-07-23 14:06:00,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 14:06:00,639 INFO L225 Difference]: With dead ends: 492 [2022-07-23 14:06:00,639 INFO L226 Difference]: Without dead ends: 261 [2022-07-23 14:06:00,642 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 [2022-07-23 14:06:00,648 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 14:06:00,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 531 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 14:06:00,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-07-23 14:06:00,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 260. [2022-07-23 14:06:00,666 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) [2022-07-23 14:06:00,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 321 transitions. [2022-07-23 14:06:00,667 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 321 transitions. Word has length 45 [2022-07-23 14:06:00,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 14:06:00,667 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 321 transitions. [2022-07-23 14:06:00,668 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) [2022-07-23 14:06:00,668 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 321 transitions. [2022-07-23 14:06:00,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-23 14:06:00,669 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 14:06:00,670 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] [2022-07-23 14:06:00,689 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-07-23 14:06:00,883 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 [2022-07-23 14:06:00,884 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)] === [2022-07-23 14:06:00,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:06:00,884 INFO L85 PathProgramCache]: Analyzing trace with hash 485811060, now seen corresponding path program 1 times [2022-07-23 14:06:00,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:06:00,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523713594] [2022-07-23 14:06:00,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:06:00,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:06:00,921 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-23 14:06:00,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1085632048] [2022-07-23 14:06:00,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:06:00,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 14:06:00,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:06:00,931 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) [2022-07-23 14:06:00,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-23 14:06:01,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:06:01,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 14:06:01,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:06:01,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:06:01,091 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 14:06:01,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:06:01,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523713594] [2022-07-23 14:06:01,091 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-23 14:06:01,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1085632048] [2022-07-23 14:06:01,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1085632048] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 14:06:01,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 14:06:01,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 14:06:01,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412425461] [2022-07-23 14:06:01,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 14:06:01,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 14:06:01,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:06:01,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 14:06:01,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 14:06:01,093 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) [2022-07-23 14:06:01,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:06:01,140 INFO L93 Difference]: Finished difference Result 596 states and 746 transitions. [2022-07-23 14:06:01,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 14:06:01,142 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 [2022-07-23 14:06:01,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 14:06:01,143 INFO L225 Difference]: With dead ends: 596 [2022-07-23 14:06:01,143 INFO L226 Difference]: Without dead ends: 345 [2022-07-23 14:06:01,144 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 [2022-07-23 14:06:01,144 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 [2022-07-23 14:06:01,144 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] [2022-07-23 14:06:01,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2022-07-23 14:06:01,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 246. [2022-07-23 14:06:01,150 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) [2022-07-23 14:06:01,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 300 transitions. [2022-07-23 14:06:01,151 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 300 transitions. Word has length 45 [2022-07-23 14:06:01,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 14:06:01,151 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 300 transitions. [2022-07-23 14:06:01,151 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) [2022-07-23 14:06:01,151 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 300 transitions. [2022-07-23 14:06:01,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-23 14:06:01,152 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 14:06:01,152 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] [2022-07-23 14:06:01,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-23 14:06:01,373 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 [2022-07-23 14:06:01,373 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)] === [2022-07-23 14:06:01,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:06:01,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1565710722, now seen corresponding path program 1 times [2022-07-23 14:06:01,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:06:01,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977856833] [2022-07-23 14:06:01,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:06:01,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:06:01,391 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-23 14:06:01,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [641405324] [2022-07-23 14:06:01,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:06:01,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 14:06:01,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:06:01,398 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) [2022-07-23 14:06:01,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-23 14:06:01,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:06:01,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-23 14:06:01,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:06:01,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:06:01,615 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 14:06:01,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:06:01,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977856833] [2022-07-23 14:06:01,618 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-23 14:06:01,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641405324] [2022-07-23 14:06:01,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641405324] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 14:06:01,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 14:06:01,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 14:06:01,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215768318] [2022-07-23 14:06:01,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 14:06:01,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 14:06:01,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:06:01,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 14:06:01,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 14:06:01,620 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) [2022-07-23 14:06:01,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:06:01,668 INFO L93 Difference]: Finished difference Result 427 states and 522 transitions. [2022-07-23 14:06:01,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 14:06:01,669 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 [2022-07-23 14:06:01,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 14:06:01,671 INFO L225 Difference]: With dead ends: 427 [2022-07-23 14:06:01,672 INFO L226 Difference]: Without dead ends: 425 [2022-07-23 14:06:01,672 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 [2022-07-23 14:06:01,673 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 [2022-07-23 14:06:01,673 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] [2022-07-23 14:06:01,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2022-07-23 14:06:01,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 415. [2022-07-23 14:06:01,681 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) [2022-07-23 14:06:01,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 518 transitions. [2022-07-23 14:06:01,682 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 518 transitions. Word has length 45 [2022-07-23 14:06:01,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 14:06:01,682 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 518 transitions. [2022-07-23 14:06:01,682 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) [2022-07-23 14:06:01,683 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 518 transitions. [2022-07-23 14:06:01,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-23 14:06:01,683 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 14:06:01,684 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] [2022-07-23 14:06:01,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-23 14:06:01,899 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 [2022-07-23 14:06:01,900 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)] === [2022-07-23 14:06:01,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:06:01,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1292392160, now seen corresponding path program 1 times [2022-07-23 14:06:01,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:06:01,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881159951] [2022-07-23 14:06:01,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:06:01,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:06:01,916 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-23 14:06:01,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [408118616] [2022-07-23 14:06:01,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:06:01,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 14:06:01,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:06:01,918 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) [2022-07-23 14:06:01,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-23 14:06:02,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:06:02,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-23 14:06:02,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:06:02,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:06:02,105 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 14:06:02,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:06:02,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881159951] [2022-07-23 14:06:02,106 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-23 14:06:02,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408118616] [2022-07-23 14:06:02,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408118616] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 14:06:02,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 14:06:02,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 14:06:02,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24324707] [2022-07-23 14:06:02,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 14:06:02,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 14:06:02,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:06:02,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 14:06:02,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 14:06:02,108 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) [2022-07-23 14:06:02,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:06:02,142 INFO L93 Difference]: Finished difference Result 723 states and 914 transitions. [2022-07-23 14:06:02,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 14:06:02,143 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 [2022-07-23 14:06:02,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 14:06:02,145 INFO L225 Difference]: With dead ends: 723 [2022-07-23 14:06:02,145 INFO L226 Difference]: Without dead ends: 721 [2022-07-23 14:06:02,146 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 [2022-07-23 14:06:02,146 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 [2022-07-23 14:06:02,147 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] [2022-07-23 14:06:02,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2022-07-23 14:06:02,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 710. [2022-07-23 14:06:02,160 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) [2022-07-23 14:06:02,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 911 transitions. [2022-07-23 14:06:02,161 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 911 transitions. Word has length 46 [2022-07-23 14:06:02,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 14:06:02,162 INFO L495 AbstractCegarLoop]: Abstraction has 710 states and 911 transitions. [2022-07-23 14:06:02,162 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) [2022-07-23 14:06:02,162 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 911 transitions. [2022-07-23 14:06:02,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-23 14:06:02,163 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 14:06:02,163 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] [2022-07-23 14:06:02,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-23 14:06:02,383 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 [2022-07-23 14:06:02,385 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)] === [2022-07-23 14:06:02,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:06:02,386 INFO L85 PathProgramCache]: Analyzing trace with hash -2118750223, now seen corresponding path program 1 times [2022-07-23 14:06:02,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:06:02,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880352903] [2022-07-23 14:06:02,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:06:02,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:06:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:06:02,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:06:02,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:06:02,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880352903] [2022-07-23 14:06:02,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880352903] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 14:06:02,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 14:06:02,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 14:06:02,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227005335] [2022-07-23 14:06:02,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 14:06:02,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 14:06:02,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:06:02,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 14:06:02,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 14:06:02,469 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) [2022-07-23 14:06:02,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:06:02,666 INFO L93 Difference]: Finished difference Result 1147 states and 1491 transitions. [2022-07-23 14:06:02,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 14:06:02,667 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 [2022-07-23 14:06:02,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 14:06:02,670 INFO L225 Difference]: With dead ends: 1147 [2022-07-23 14:06:02,671 INFO L226 Difference]: Without dead ends: 954 [2022-07-23 14:06:02,671 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 [2022-07-23 14:06:02,672 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 [2022-07-23 14:06:02,672 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] [2022-07-23 14:06:02,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2022-07-23 14:06:02,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 710. [2022-07-23 14:06:02,685 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) [2022-07-23 14:06:02,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 910 transitions. [2022-07-23 14:06:02,687 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 910 transitions. Word has length 49 [2022-07-23 14:06:02,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 14:06:02,688 INFO L495 AbstractCegarLoop]: Abstraction has 710 states and 910 transitions. [2022-07-23 14:06:02,688 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) [2022-07-23 14:06:02,688 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 910 transitions. [2022-07-23 14:06:02,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-23 14:06:02,688 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 14:06:02,689 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] [2022-07-23 14:06:02,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-23 14:06:02,689 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)] === [2022-07-23 14:06:02,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:06:02,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1422172071, now seen corresponding path program 1 times [2022-07-23 14:06:02,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:06:02,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313704802] [2022-07-23 14:06:02,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:06:02,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:06:02,709 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-23 14:06:02,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [836078073] [2022-07-23 14:06:02,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:06:02,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 14:06:02,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:06:02,711 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) [2022-07-23 14:06:02,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-23 14:06:02,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:06:02,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:06:02,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:06:02,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:06:02,930 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 14:06:02,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:06:02,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313704802] [2022-07-23 14:06:02,930 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-23 14:06:02,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836078073] [2022-07-23 14:06:02,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836078073] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 14:06:02,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 14:06:02,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-23 14:06:02,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356710281] [2022-07-23 14:06:02,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 14:06:02,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 14:06:02,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:06:02,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 14:06:02,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 14:06:02,932 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) [2022-07-23 14:06:02,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:06:02,947 INFO L93 Difference]: Finished difference Result 739 states and 933 transitions. [2022-07-23 14:06:02,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 14:06:02,947 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 [2022-07-23 14:06:02,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 14:06:02,950 INFO L225 Difference]: With dead ends: 739 [2022-07-23 14:06:02,950 INFO L226 Difference]: Without dead ends: 738 [2022-07-23 14:06:02,951 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 [2022-07-23 14:06:02,951 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 [2022-07-23 14:06:02,951 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] [2022-07-23 14:06:02,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2022-07-23 14:06:02,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 728. [2022-07-23 14:06:02,964 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) [2022-07-23 14:06:02,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 930 transitions. [2022-07-23 14:06:02,966 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 930 transitions. Word has length 55 [2022-07-23 14:06:02,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 14:06:02,966 INFO L495 AbstractCegarLoop]: Abstraction has 728 states and 930 transitions. [2022-07-23 14:06:02,966 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) [2022-07-23 14:06:02,966 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 930 transitions. [2022-07-23 14:06:02,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-23 14:06:02,967 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 14:06:02,967 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] [2022-07-23 14:06:02,990 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-23 14:06:03,187 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 [2022-07-23 14:06:03,188 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)] === [2022-07-23 14:06:03,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:06:03,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1137661302, now seen corresponding path program 1 times [2022-07-23 14:06:03,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:06:03,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764620742] [2022-07-23 14:06:03,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:06:03,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:06:03,214 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-23 14:06:03,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1366908148] [2022-07-23 14:06:03,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:06:03,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 14:06:03,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:06:03,216 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) [2022-07-23 14:06:03,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-23 14:06:03,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:06:03,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:06:03,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:06:03,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:06:03,452 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 14:06:03,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:06:03,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764620742] [2022-07-23 14:06:03,452 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-23 14:06:03,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366908148] [2022-07-23 14:06:03,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366908148] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 14:06:03,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 14:06:03,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-23 14:06:03,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131810317] [2022-07-23 14:06:03,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 14:06:03,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 14:06:03,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:06:03,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 14:06:03,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 14:06:03,453 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) [2022-07-23 14:06:03,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:06:03,478 INFO L93 Difference]: Finished difference Result 728 states and 930 transitions. [2022-07-23 14:06:03,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 14:06:03,479 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 [2022-07-23 14:06:03,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 14:06:03,481 INFO L225 Difference]: With dead ends: 728 [2022-07-23 14:06:03,481 INFO L226 Difference]: Without dead ends: 727 [2022-07-23 14:06:03,482 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 [2022-07-23 14:06:03,482 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 [2022-07-23 14:06:03,482 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] [2022-07-23 14:06:03,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2022-07-23 14:06:03,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 727. [2022-07-23 14:06:03,495 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) [2022-07-23 14:06:03,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 928 transitions. [2022-07-23 14:06:03,497 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 928 transitions. Word has length 56 [2022-07-23 14:06:03,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 14:06:03,497 INFO L495 AbstractCegarLoop]: Abstraction has 727 states and 928 transitions. [2022-07-23 14:06:03,498 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) [2022-07-23 14:06:03,498 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 928 transitions. [2022-07-23 14:06:03,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-23 14:06:03,498 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 14:06:03,498 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] [2022-07-23 14:06:03,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-23 14:06:03,711 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 [2022-07-23 14:06:03,712 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)] === [2022-07-23 14:06:03,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:06:03,712 INFO L85 PathProgramCache]: Analyzing trace with hash -906147032, now seen corresponding path program 1 times [2022-07-23 14:06:03,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:06:03,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891227769] [2022-07-23 14:06:03,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:06:03,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:06:03,777 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-23 14:06:03,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1370959638] [2022-07-23 14:06:03,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:06:03,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 14:06:03,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:06:03,779 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) [2022-07-23 14:06:03,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-23 14:06:04,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:06:04,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 1557 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-23 14:06:04,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:06:04,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:06:04,397 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 14:06:04,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:06:04,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891227769] [2022-07-23 14:06:04,397 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-23 14:06:04,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370959638] [2022-07-23 14:06:04,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370959638] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 14:06:04,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 14:06:04,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 14:06:04,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963937305] [2022-07-23 14:06:04,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 14:06:04,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 14:06:04,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:06:04,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 14:06:04,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 14:06:04,399 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) [2022-07-23 14:06:04,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:06:04,475 INFO L93 Difference]: Finished difference Result 1367 states and 1741 transitions. [2022-07-23 14:06:04,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 14:06:04,476 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 [2022-07-23 14:06:04,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 14:06:04,491 INFO L225 Difference]: With dead ends: 1367 [2022-07-23 14:06:04,491 INFO L226 Difference]: Without dead ends: 649 [2022-07-23 14:06:04,492 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 [2022-07-23 14:06:04,492 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 103 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2022-07-23 14:06:04,492 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] [2022-07-23 14:06:04,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2022-07-23 14:06:04,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 640. [2022-07-23 14:06:04,503 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) [2022-07-23 14:06:04,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 809 transitions. [2022-07-23 14:06:04,505 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 809 transitions. Word has length 58 [2022-07-23 14:06:04,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 14:06:04,505 INFO L495 AbstractCegarLoop]: Abstraction has 640 states and 809 transitions. [2022-07-23 14:06:04,505 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) [2022-07-23 14:06:04,505 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 809 transitions. [2022-07-23 14:06:04,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-23 14:06:04,506 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 14:06:04,506 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] [2022-07-23 14:06:04,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-23 14:06:04,719 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 [2022-07-23 14:06:04,719 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)] === [2022-07-23 14:06:04,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:06:04,719 INFO L85 PathProgramCache]: Analyzing trace with hash 804842726, now seen corresponding path program 1 times [2022-07-23 14:06:04,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:06:04,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892447035] [2022-07-23 14:06:04,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:06:04,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:06:04,741 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-23 14:06:04,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [782977162] [2022-07-23 14:06:04,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:06:04,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 14:06:04,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:06:04,756 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) [2022-07-23 14:06:04,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-23 14:06:05,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:06:05,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-23 14:06:05,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:06:05,114 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:06:05,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 14:06:05,259 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:06:05,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:06:05,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892447035] [2022-07-23 14:06:05,259 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-23 14:06:05,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782977162] [2022-07-23 14:06:05,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782977162] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 14:06:05,260 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 14:06:05,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 13 [2022-07-23 14:06:05,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853895972] [2022-07-23 14:06:05,260 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 14:06:05,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-23 14:06:05,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:06:05,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-23 14:06:05,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-07-23 14:06:05,261 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) [2022-07-23 14:06:05,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:06:05,785 INFO L93 Difference]: Finished difference Result 2064 states and 2645 transitions. [2022-07-23 14:06:05,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-23 14:06:05,785 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 [2022-07-23 14:06:05,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 14:06:05,793 INFO L225 Difference]: With dead ends: 2064 [2022-07-23 14:06:05,793 INFO L226 Difference]: Without dead ends: 2062 [2022-07-23 14:06:05,794 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 [2022-07-23 14:06:05,794 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 [2022-07-23 14:06:05,795 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] [2022-07-23 14:06:05,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2062 states. [2022-07-23 14:06:05,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2062 to 1830. [2022-07-23 14:06:05,836 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) [2022-07-23 14:06:05,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1830 states to 1830 states and 2372 transitions. [2022-07-23 14:06:05,841 INFO L78 Accepts]: Start accepts. Automaton has 1830 states and 2372 transitions. Word has length 64 [2022-07-23 14:06:05,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 14:06:05,841 INFO L495 AbstractCegarLoop]: Abstraction has 1830 states and 2372 transitions. [2022-07-23 14:06:05,842 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) [2022-07-23 14:06:05,842 INFO L276 IsEmpty]: Start isEmpty. Operand 1830 states and 2372 transitions. [2022-07-23 14:06:05,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-23 14:06:05,842 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 14:06:05,842 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] [2022-07-23 14:06:05,861 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-23 14:06:06,055 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 [2022-07-23 14:06:06,055 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)] === [2022-07-23 14:06:06,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:06:06,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1176759637, now seen corresponding path program 1 times [2022-07-23 14:06:06,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:06:06,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990683933] [2022-07-23 14:06:06,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:06:06,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:06:06,081 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-23 14:06:06,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [690971827] [2022-07-23 14:06:06,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:06:06,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 14:06:06,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:06:06,083 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) [2022-07-23 14:06:06,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-23 14:06:06,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:06:06,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-23 14:06:06,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:06:06,496 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:06:06,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 14:06:06,597 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-23 14:06:06,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:06:06,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990683933] [2022-07-23 14:06:06,597 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-23 14:06:06,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690971827] [2022-07-23 14:06:06,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690971827] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 14:06:06,597 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 14:06:06,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2022-07-23 14:06:06,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734441998] [2022-07-23 14:06:06,598 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 14:06:06,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-23 14:06:06,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:06:06,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-23 14:06:06,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-07-23 14:06:06,599 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) [2022-07-23 14:06:06,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:06:06,895 INFO L93 Difference]: Finished difference Result 3333 states and 4309 transitions. [2022-07-23 14:06:06,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-23 14:06:06,896 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 [2022-07-23 14:06:06,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 14:06:06,906 INFO L225 Difference]: With dead ends: 3333 [2022-07-23 14:06:06,907 INFO L226 Difference]: Without dead ends: 3332 [2022-07-23 14:06:06,908 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 [2022-07-23 14:06:06,909 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 [2022-07-23 14:06:06,909 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] [2022-07-23 14:06:06,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3332 states. [2022-07-23 14:06:06,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3332 to 2995. [2022-07-23 14:06:06,974 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) [2022-07-23 14:06:06,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2995 states to 2995 states and 3871 transitions. [2022-07-23 14:06:06,982 INFO L78 Accepts]: Start accepts. Automaton has 2995 states and 3871 transitions. Word has length 74 [2022-07-23 14:06:06,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 14:06:06,982 INFO L495 AbstractCegarLoop]: Abstraction has 2995 states and 3871 transitions. [2022-07-23 14:06:06,982 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) [2022-07-23 14:06:06,983 INFO L276 IsEmpty]: Start isEmpty. Operand 2995 states and 3871 transitions. [2022-07-23 14:06:06,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-23 14:06:06,983 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 14:06:06,983 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] [2022-07-23 14:06:07,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-23 14:06:07,202 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 [2022-07-23 14:06:07,202 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)] === [2022-07-23 14:06:07,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:06:07,202 INFO L85 PathProgramCache]: Analyzing trace with hash 573613648, now seen corresponding path program 1 times [2022-07-23 14:06:07,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:06:07,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321980556] [2022-07-23 14:06:07,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:06:07,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:06:07,229 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-23 14:06:07,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1931193650] [2022-07-23 14:06:07,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:06:07,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 14:06:07,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:06:07,231 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) [2022-07-23 14:06:07,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-23 14:06:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:06:07,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 19 conjunts are in the unsatisfiable core [2022-07-23 14:06:07,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:06:07,670 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-23 14:06:07,670 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 14:06:07,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:06:07,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321980556] [2022-07-23 14:06:07,670 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-23 14:06:07,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931193650] [2022-07-23 14:06:07,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931193650] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 14:06:07,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 14:06:07,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 14:06:07,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145646309] [2022-07-23 14:06:07,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 14:06:07,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 14:06:07,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:06:07,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 14:06:07,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-23 14:06:07,672 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) [2022-07-23 14:06:07,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:06:07,802 INFO L93 Difference]: Finished difference Result 5929 states and 7675 transitions. [2022-07-23 14:06:07,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 14:06:07,803 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 [2022-07-23 14:06:07,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 14:06:07,811 INFO L225 Difference]: With dead ends: 5929 [2022-07-23 14:06:07,812 INFO L226 Difference]: Without dead ends: 2995 [2022-07-23 14:06:07,817 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 [2022-07-23 14:06:07,818 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 [2022-07-23 14:06:07,819 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] [2022-07-23 14:06:07,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2995 states. [2022-07-23 14:06:07,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2995 to 2995. [2022-07-23 14:06:07,880 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) [2022-07-23 14:06:07,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2995 states to 2995 states and 3870 transitions. [2022-07-23 14:06:07,888 INFO L78 Accepts]: Start accepts. Automaton has 2995 states and 3870 transitions. Word has length 96 [2022-07-23 14:06:07,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 14:06:07,888 INFO L495 AbstractCegarLoop]: Abstraction has 2995 states and 3870 transitions. [2022-07-23 14:06:07,888 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) [2022-07-23 14:06:07,889 INFO L276 IsEmpty]: Start isEmpty. Operand 2995 states and 3870 transitions. [2022-07-23 14:06:07,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-23 14:06:07,890 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 14:06:07,890 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] [2022-07-23 14:06:07,912 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-23 14:06:08,110 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 [2022-07-23 14:06:08,111 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)] === [2022-07-23 14:06:08,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:06:08,111 INFO L85 PathProgramCache]: Analyzing trace with hash 120930980, now seen corresponding path program 1 times [2022-07-23 14:06:08,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:06:08,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947937426] [2022-07-23 14:06:08,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:06:08,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:06:08,139 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-23 14:06:08,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1909433227] [2022-07-23 14:06:08,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:06:08,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 14:06:08,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:06:08,141 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) [2022-07-23 14:06:08,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-23 14:06:08,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:06:08,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-23 14:06:08,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:06:08,625 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:06:08,625 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 14:06:08,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:06:08,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947937426] [2022-07-23 14:06:08,626 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-23 14:06:08,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909433227] [2022-07-23 14:06:08,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909433227] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 14:06:08,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 14:06:08,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-23 14:06:08,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820785329] [2022-07-23 14:06:08,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 14:06:08,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 14:06:08,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:06:08,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 14:06:08,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-23 14:06:08,628 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) [2022-07-23 14:06:08,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:06:08,767 INFO L93 Difference]: Finished difference Result 4984 states and 6449 transitions. [2022-07-23 14:06:08,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-23 14:06:08,767 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 [2022-07-23 14:06:08,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 14:06:08,773 INFO L225 Difference]: With dead ends: 4984 [2022-07-23 14:06:08,773 INFO L226 Difference]: Without dead ends: 2031 [2022-07-23 14:06:08,777 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 [2022-07-23 14:06:08,778 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 [2022-07-23 14:06:08,778 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] [2022-07-23 14:06:08,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2031 states. [2022-07-23 14:06:08,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2031 to 2029. [2022-07-23 14:06:08,819 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) [2022-07-23 14:06:08,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2029 states to 2029 states and 2587 transitions. [2022-07-23 14:06:08,824 INFO L78 Accepts]: Start accepts. Automaton has 2029 states and 2587 transitions. Word has length 101 [2022-07-23 14:06:08,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 14:06:08,824 INFO L495 AbstractCegarLoop]: Abstraction has 2029 states and 2587 transitions. [2022-07-23 14:06:08,825 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) [2022-07-23 14:06:08,825 INFO L276 IsEmpty]: Start isEmpty. Operand 2029 states and 2587 transitions. [2022-07-23 14:06:08,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-23 14:06:08,825 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 14:06:08,825 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] [2022-07-23 14:06:08,848 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-23 14:06:09,039 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 [2022-07-23 14:06:09,039 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)] === [2022-07-23 14:06:09,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:06:09,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1967918926, now seen corresponding path program 1 times [2022-07-23 14:06:09,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:06:09,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625414912] [2022-07-23 14:06:09,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:06:09,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:06:09,087 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-23 14:06:09,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1922382175] [2022-07-23 14:06:09,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:06:09,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 14:06:09,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:06:09,089 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) [2022-07-23 14:06:09,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-23 14:06:09,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:06:09,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 806 conjuncts, 20 conjunts are in the unsatisfiable core [2022-07-23 14:06:09,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:06:09,664 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-23 14:06:09,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 14:06:09,791 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-23 14:06:09,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:06:09,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625414912] [2022-07-23 14:06:09,791 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-23 14:06:09,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922382175] [2022-07-23 14:06:09,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922382175] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 14:06:09,792 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 14:06:09,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6] total 14 [2022-07-23 14:06:09,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476276418] [2022-07-23 14:06:09,792 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 14:06:09,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-23 14:06:09,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:06:09,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-23 14:06:09,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-07-23 14:06:09,793 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) [2022-07-23 14:06:10,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:06:10,071 INFO L93 Difference]: Finished difference Result 4098 states and 5264 transitions. [2022-07-23 14:06:10,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-23 14:06:10,072 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 [2022-07-23 14:06:10,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 14:06:10,079 INFO L225 Difference]: With dead ends: 4098 [2022-07-23 14:06:10,079 INFO L226 Difference]: Without dead ends: 2120 [2022-07-23 14:06:10,082 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 [2022-07-23 14:06:10,083 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 [2022-07-23 14:06:10,083 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] [2022-07-23 14:06:10,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2120 states. [2022-07-23 14:06:10,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2120 to 2087. [2022-07-23 14:06:10,153 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) [2022-07-23 14:06:10,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2087 states to 2087 states and 2667 transitions. [2022-07-23 14:06:10,158 INFO L78 Accepts]: Start accepts. Automaton has 2087 states and 2667 transitions. Word has length 103 [2022-07-23 14:06:10,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 14:06:10,158 INFO L495 AbstractCegarLoop]: Abstraction has 2087 states and 2667 transitions. [2022-07-23 14:06:10,159 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) [2022-07-23 14:06:10,159 INFO L276 IsEmpty]: Start isEmpty. Operand 2087 states and 2667 transitions. [2022-07-23 14:06:10,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-23 14:06:10,159 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 14:06:10,160 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] [2022-07-23 14:06:10,193 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-23 14:06:10,375 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 [2022-07-23 14:06:10,375 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)] === [2022-07-23 14:06:10,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:06:10,376 INFO L85 PathProgramCache]: Analyzing trace with hash -183406268, now seen corresponding path program 2 times [2022-07-23 14:06:10,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:06:10,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36693816] [2022-07-23 14:06:10,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:06:10,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:06:10,428 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-23 14:06:10,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [330557570] [2022-07-23 14:06:10,428 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 14:06:10,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 14:06:10,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:06:10,430 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) [2022-07-23 14:06:10,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process