./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b 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_JEN_test2-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1ccd4b93de7420a1f7847638daedeeee3b82eb082e434a23182d7e5e0aee2085 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 15:19:11,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 15:19:11,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 15:19:11,959 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 15:19:11,959 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 15:19:11,961 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 15:19:11,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 15:19:11,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 15:19:11,966 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 15:19:11,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 15:19:11,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 15:19:11,973 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 15:19:11,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 15:19:11,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 15:19:11,976 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 15:19:11,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 15:19:11,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 15:19:11,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 15:19:11,984 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 15:19:11,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 15:19:11,988 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 15:19:11,989 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 15:19:11,991 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 15:19:11,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 15:19:11,995 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 15:19:11,998 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 15:19:11,998 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 15:19:11,999 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 15:19:12,000 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 15:19:12,001 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 15:19:12,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 15:19:12,001 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 15:19:12,002 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 15:19:12,003 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 15:19:12,004 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 15:19:12,004 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 15:19:12,005 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 15:19:12,005 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 15:19:12,005 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 15:19:12,006 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 15:19:12,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 15:19:12,008 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-04 15:19:12,029 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 15:19:12,030 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 15:19:12,030 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 15:19:12,030 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 15:19:12,031 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 15:19:12,032 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 15:19:12,032 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 15:19:12,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 15:19:12,032 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-04 15:19:12,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 15:19:12,033 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-04 15:19:12,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 15:19:12,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 15:19:12,034 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 15:19:12,034 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 15:19:12,034 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-04 15:19:12,034 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 15:19:12,034 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 15:19:12,034 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 15:19:12,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 15:19:12,035 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 15:19:12,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 15:19:12,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 15:19:12,035 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 15:19:12,035 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 15:19:12,035 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 15:19:12,036 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 15:19:12,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 15:19:12,036 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 15:19:12,036 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 15:19:12,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 15:19:12,036 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 15:19:12,037 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ccd4b93de7420a1f7847638daedeeee3b82eb082e434a23182d7e5e0aee2085 [2021-11-04 15:19:12,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 15:19:12,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 15:19:12,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 15:19:12,227 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 15:19:12,228 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 15:19:12,228 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i [2021-11-04 15:19:12,271 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12b1e41cd/9dcd416b3f124d7083dec3a1a0135ba4/FLAG0da9fd904 [2021-11-04 15:19:12,667 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 15:19:12,668 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i [2021-11-04 15:19:12,689 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12b1e41cd/9dcd416b3f124d7083dec3a1a0135ba4/FLAG0da9fd904 [2021-11-04 15:19:13,008 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12b1e41cd/9dcd416b3f124d7083dec3a1a0135ba4 [2021-11-04 15:19:13,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 15:19:13,013 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 15:19:13,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 15:19:13,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 15:19:13,031 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 15:19:13,032 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 03:19:13" (1/1) ... [2021-11-04 15:19:13,033 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16e4e2d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 03:19:13, skipping insertion in model container [2021-11-04 15:19:13,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 03:19:13" (1/1) ... [2021-11-04 15:19:13,038 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 15:19:13,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 15:19:13,389 WARN L228 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_JEN_test2-1.i[37019,37032] [2021-11-04 15:19:13,490 WARN L228 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_JEN_test2-1.i[47352,47365] [2021-11-04 15:19:13,500 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 15:19:13,512 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 15:19:13,544 WARN L228 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_JEN_test2-1.i[37019,37032] [2021-11-04 15:19:13,576 WARN L228 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_JEN_test2-1.i[47352,47365] [2021-11-04 15:19:13,578 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 15:19:13,605 INFO L208 MainTranslator]: Completed translation [2021-11-04 15:19:13,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 03:19:13 WrapperNode [2021-11-04 15:19:13,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 15:19:13,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 15:19:13,607 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 15:19:13,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 15:19:13,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 03:19:13" (1/1) ... [2021-11-04 15:19:13,629 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 03:19:13" (1/1) ... [2021-11-04 15:19:13,709 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 15:19:13,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 15:19:13,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 15:19:13,710 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 15:19:13,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 03:19:13" (1/1) ... [2021-11-04 15:19:13,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 03:19:13" (1/1) ... [2021-11-04 15:19:13,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 03:19:13" (1/1) ... [2021-11-04 15:19:13,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 03:19:13" (1/1) ... [2021-11-04 15:19:13,772 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 03:19:13" (1/1) ... [2021-11-04 15:19:13,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 03:19:13" (1/1) ... [2021-11-04 15:19:13,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 03:19:13" (1/1) ... [2021-11-04 15:19:13,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 15:19:13,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 15:19:13,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 15:19:13,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 15:19:13,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 03:19:13" (1/1) ... [2021-11-04 15:19:13,808 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 15:19:13,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 15:19:13,843 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) [2021-11-04 15:19:13,861 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 [2021-11-04 15:19:13,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 15:19:13,872 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-04 15:19:13,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 15:19:13,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 15:19:13,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 15:19:13,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 15:19:13,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 15:19:13,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 15:19:13,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 15:19:13,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 15:19:13,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 15:19:14,393 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 15:19:14,393 INFO L299 CfgBuilder]: Removed 76 assume(true) statements. [2021-11-04 15:19:14,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 03:19:14 BoogieIcfgContainer [2021-11-04 15:19:14,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 15:19:14,396 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 15:19:14,396 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 15:19:14,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 15:19:14,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 03:19:13" (1/3) ... [2021-11-04 15:19:14,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c5bf16f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 03:19:14, skipping insertion in model container [2021-11-04 15:19:14,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 03:19:13" (2/3) ... [2021-11-04 15:19:14,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c5bf16f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 03:19:14, skipping insertion in model container [2021-11-04 15:19:14,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 03:19:14" (3/3) ... [2021-11-04 15:19:14,401 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test2-1.i [2021-11-04 15:19:14,404 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 15:19:14,404 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-04 15:19:14,435 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 15:19:14,440 INFO L339 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=PETRI_NET, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-04 15:19:14,440 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-04 15:19:14,452 INFO L276 IsEmpty]: Start isEmpty. Operand has 177 states, 170 states have (on average 1.723529411764706) internal successors, (293), 176 states have internal predecessors, (293), 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) [2021-11-04 15:19:14,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-04 15:19:14,457 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 15:19:14,457 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 15:19:14,457 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-04 15:19:14,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 15:19:14,461 INFO L85 PathProgramCache]: Analyzing trace with hash 239231399, now seen corresponding path program 1 times [2021-11-04 15:19:14,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 15:19:14,468 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196977450] [2021-11-04 15:19:14,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 15:19:14,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 15:19:14,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 15:19:14,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 15:19:14,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 15:19:14,577 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196977450] [2021-11-04 15:19:14,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196977450] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 15:19:14,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 15:19:14,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 15:19:14,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840599854] [2021-11-04 15:19:14,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 15:19:14,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-04 15:19:14,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 15:19:14,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-04 15:19:14,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-04 15:19:14,601 INFO L87 Difference]: Start difference. First operand has 177 states, 170 states have (on average 1.723529411764706) internal successors, (293), 176 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 15:19:15,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 15:19:15,052 INFO L93 Difference]: Finished difference Result 352 states and 584 transitions. [2021-11-04 15:19:15,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-04 15:19:15,055 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-04 15:19:15,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 15:19:15,062 INFO L225 Difference]: With dead ends: 352 [2021-11-04 15:19:15,063 INFO L226 Difference]: Without dead ends: 173 [2021-11-04 15:19:15,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-04 15:19:15,072 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 327.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.26ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 415.08ms IncrementalHoareTripleChecker+Time [2021-11-04 15:19:15,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 229 Unknown, 0 Unchecked, 1.26ms Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 415.08ms Time] [2021-11-04 15:19:15,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-11-04 15:19:15,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2021-11-04 15:19:15,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 167 states have (on average 1.347305389221557) internal successors, (225), 172 states have internal predecessors, (225), 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) [2021-11-04 15:19:15,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 225 transitions. [2021-11-04 15:19:15,125 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 225 transitions. Word has length 9 [2021-11-04 15:19:15,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 15:19:15,125 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 225 transitions. [2021-11-04 15:19:15,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 15:19:15,126 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 225 transitions. [2021-11-04 15:19:15,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-04 15:19:15,128 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 15:19:15,128 INFO L514 BasicCegarLoop]: 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] [2021-11-04 15:19:15,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 15:19:15,129 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-04 15:19:15,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 15:19:15,131 INFO L85 PathProgramCache]: Analyzing trace with hash 627334177, now seen corresponding path program 1 times [2021-11-04 15:19:15,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 15:19:15,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165116572] [2021-11-04 15:19:15,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 15:19:15,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 15:19:15,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 15:19:15,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 15:19:15,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 15:19:15,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165116572] [2021-11-04 15:19:15,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165116572] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 15:19:15,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 15:19:15,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-04 15:19:15,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446995250] [2021-11-04 15:19:15,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 15:19:15,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 15:19:15,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 15:19:15,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 15:19:15,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 15:19:15,195 INFO L87 Difference]: Start difference. First operand 173 states and 225 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2021-11-04 15:19:15,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 15:19:15,950 INFO L93 Difference]: Finished difference Result 377 states and 490 transitions. [2021-11-04 15:19:15,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 15:19:15,951 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), 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 44 [2021-11-04 15:19:15,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 15:19:15,955 INFO L225 Difference]: With dead ends: 377 [2021-11-04 15:19:15,955 INFO L226 Difference]: Without dead ends: 294 [2021-11-04 15:19:15,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.61ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 15:19:15,961 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 153 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 609.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.70ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 719.88ms IncrementalHoareTripleChecker+Time [2021-11-04 15:19:15,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 0 Invalid, 676 Unknown, 0 Unchecked, 4.70ms Time], IncrementalHoareTripleChecker [3 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 719.88ms Time] [2021-11-04 15:19:15,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2021-11-04 15:19:15,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 175. [2021-11-04 15:19:15,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 169 states have (on average 1.3431952662721893) internal successors, (227), 174 states have internal predecessors, (227), 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) [2021-11-04 15:19:15,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 227 transitions. [2021-11-04 15:19:15,980 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 227 transitions. Word has length 44 [2021-11-04 15:19:15,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 15:19:15,980 INFO L470 AbstractCegarLoop]: Abstraction has 175 states and 227 transitions. [2021-11-04 15:19:15,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2021-11-04 15:19:15,982 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 227 transitions. [2021-11-04 15:19:15,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-04 15:19:15,989 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 15:19:15,989 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 15:19:15,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 15:19:15,990 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-04 15:19:15,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 15:19:15,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1103505073, now seen corresponding path program 1 times [2021-11-04 15:19:15,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 15:19:15,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477905474] [2021-11-04 15:19:15,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 15:19:15,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 15:19:16,023 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-04 15:19:16,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [241066646] [2021-11-04 15:19:16,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 15:19:16,027 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 15:19:16,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 15:19:16,029 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) [2021-11-04 15:19:16,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-04 15:19:16,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 15:19:16,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-04 15:19:16,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 15:19:16,337 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 15:19:16,337 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-04 15:19:16,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 15:19:16,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477905474] [2021-11-04 15:19:16,338 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-04 15:19:16,338 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241066646] [2021-11-04 15:19:16,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241066646] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 15:19:16,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 15:19:16,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 15:19:16,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433313735] [2021-11-04 15:19:16,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 15:19:16,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 15:19:16,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 15:19:16,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 15:19:16,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 15:19:16,339 INFO L87 Difference]: Start difference. First operand 175 states and 227 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2021-11-04 15:19:16,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 15:19:16,668 INFO L93 Difference]: Finished difference Result 367 states and 481 transitions. [2021-11-04 15:19:16,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 15:19:16,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 96 [2021-11-04 15:19:16,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 15:19:16,670 INFO L225 Difference]: With dead ends: 367 [2021-11-04 15:19:16,670 INFO L226 Difference]: Without dead ends: 196 [2021-11-04 15:19:16,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.27ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 15:19:16,671 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 256.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.07ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 318.29ms IncrementalHoareTripleChecker+Time [2021-11-04 15:19:16,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 467 Unknown, 0 Unchecked, 1.07ms Time], IncrementalHoareTripleChecker [28 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 318.29ms Time] [2021-11-04 15:19:16,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-11-04 15:19:16,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 195. [2021-11-04 15:19:16,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 189 states have (on average 1.306878306878307) internal successors, (247), 194 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 15:19:16,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 247 transitions. [2021-11-04 15:19:16,677 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 247 transitions. Word has length 96 [2021-11-04 15:19:16,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 15:19:16,677 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 247 transitions. [2021-11-04 15:19:16,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2021-11-04 15:19:16,677 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 247 transitions. [2021-11-04 15:19:16,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-04 15:19:16,679 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 15:19:16,682 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 15:19:16,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-04 15:19:16,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 15:19:16,884 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-04 15:19:16,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 15:19:16,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1343744819, now seen corresponding path program 1 times [2021-11-04 15:19:16,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 15:19:16,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931754157] [2021-11-04 15:19:16,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 15:19:16,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 15:19:16,906 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-04 15:19:16,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1465969167] [2021-11-04 15:19:16,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 15:19:16,910 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 15:19:16,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 15:19:16,936 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) [2021-11-04 15:19:16,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-04 15:19:17,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 15:19:17,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-04 15:19:17,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 15:19:17,225 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 15:19:17,225 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-04 15:19:17,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 15:19:17,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931754157] [2021-11-04 15:19:17,226 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-04 15:19:17,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465969167] [2021-11-04 15:19:17,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465969167] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 15:19:17,226 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 15:19:17,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 15:19:17,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780109630] [2021-11-04 15:19:17,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 15:19:17,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 15:19:17,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 15:19:17,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 15:19:17,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 15:19:17,227 INFO L87 Difference]: Start difference. First operand 195 states and 247 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2021-11-04 15:19:17,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 15:19:17,566 INFO L93 Difference]: Finished difference Result 298 states and 384 transitions. [2021-11-04 15:19:17,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 15:19:17,566 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 96 [2021-11-04 15:19:17,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 15:19:17,567 INFO L225 Difference]: With dead ends: 298 [2021-11-04 15:19:17,567 INFO L226 Difference]: Without dead ends: 216 [2021-11-04 15:19:17,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.65ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 15:19:17,568 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 268.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.39ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 327.37ms IncrementalHoareTripleChecker+Time [2021-11-04 15:19:17,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 467 Unknown, 0 Unchecked, 1.39ms Time], IncrementalHoareTripleChecker [28 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 327.37ms Time] [2021-11-04 15:19:17,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-04 15:19:17,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 215. [2021-11-04 15:19:17,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 209 states have (on average 1.277511961722488) internal successors, (267), 214 states have internal predecessors, (267), 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) [2021-11-04 15:19:17,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 267 transitions. [2021-11-04 15:19:17,582 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 267 transitions. Word has length 96 [2021-11-04 15:19:17,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 15:19:17,583 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 267 transitions. [2021-11-04 15:19:17,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2021-11-04 15:19:17,583 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 267 transitions. [2021-11-04 15:19:17,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-04 15:19:17,585 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 15:19:17,585 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 15:19:17,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-04 15:19:17,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-11-04 15:19:17,800 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-04 15:19:17,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 15:19:17,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1663949871, now seen corresponding path program 1 times [2021-11-04 15:19:17,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 15:19:17,801 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133245269] [2021-11-04 15:19:17,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 15:19:17,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 15:19:17,811 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-04 15:19:17,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1381208476] [2021-11-04 15:19:17,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 15:19:17,817 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 15:19:17,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 15:19:17,828 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) [2021-11-04 15:19:17,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-04 15:19:17,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 15:19:17,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-04 15:19:17,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 15:19:18,100 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 15:19:18,101 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-04 15:19:18,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 15:19:18,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133245269] [2021-11-04 15:19:18,101 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-04 15:19:18,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381208476] [2021-11-04 15:19:18,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381208476] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 15:19:18,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 15:19:18,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-04 15:19:18,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060047413] [2021-11-04 15:19:18,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 15:19:18,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 15:19:18,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 15:19:18,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 15:19:18,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 15:19:18,103 INFO L87 Difference]: Start difference. First operand 215 states and 267 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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) [2021-11-04 15:19:18,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 15:19:18,498 INFO L93 Difference]: Finished difference Result 418 states and 522 transitions. [2021-11-04 15:19:18,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 15:19:18,498 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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 96 [2021-11-04 15:19:18,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 15:19:18,499 INFO L225 Difference]: With dead ends: 418 [2021-11-04 15:19:18,499 INFO L226 Difference]: Without dead ends: 207 [2021-11-04 15:19:18,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.12ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 15:19:18,500 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 213 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 317.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.06ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 375.70ms IncrementalHoareTripleChecker+Time [2021-11-04 15:19:18,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 0 Invalid, 472 Unknown, 0 Unchecked, 2.06ms Time], IncrementalHoareTripleChecker [24 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 375.70ms Time] [2021-11-04 15:19:18,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-11-04 15:19:18,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 201. [2021-11-04 15:19:18,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 195 states have (on average 1.2615384615384615) internal successors, (246), 200 states have internal predecessors, (246), 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) [2021-11-04 15:19:18,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 246 transitions. [2021-11-04 15:19:18,506 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 246 transitions. Word has length 96 [2021-11-04 15:19:18,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 15:19:18,506 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 246 transitions. [2021-11-04 15:19:18,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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) [2021-11-04 15:19:18,506 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 246 transitions. [2021-11-04 15:19:18,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-04 15:19:18,511 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 15:19:18,511 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 15:19:18,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-04 15:19:18,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 15:19:18,723 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-04 15:19:18,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 15:19:18,724 INFO L85 PathProgramCache]: Analyzing trace with hash 569918303, now seen corresponding path program 1 times [2021-11-04 15:19:18,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 15:19:18,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542846915] [2021-11-04 15:19:18,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 15:19:18,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 15:19:18,734 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-04 15:19:18,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1522092843] [2021-11-04 15:19:18,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 15:19:18,735 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 15:19:18,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 15:19:18,736 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) [2021-11-04 15:19:18,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-04 15:19:18,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 15:19:18,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-04 15:19:18,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 15:19:18,980 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 15:19:18,980 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-04 15:19:18,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 15:19:18,981 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542846915] [2021-11-04 15:19:18,981 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-04 15:19:18,981 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522092843] [2021-11-04 15:19:18,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522092843] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 15:19:18,981 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 15:19:18,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-04 15:19:18,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806934645] [2021-11-04 15:19:18,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 15:19:18,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 15:19:18,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 15:19:18,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 15:19:18,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 15:19:18,983 INFO L87 Difference]: Start difference. First operand 201 states and 246 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) [2021-11-04 15:19:19,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 15:19:19,419 INFO L93 Difference]: Finished difference Result 295 states and 364 transitions. [2021-11-04 15:19:19,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 15:19:19,420 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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 96 [2021-11-04 15:19:19,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 15:19:19,421 INFO L225 Difference]: With dead ends: 295 [2021-11-04 15:19:19,421 INFO L226 Difference]: Without dead ends: 193 [2021-11-04 15:19:19,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.06ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 15:19:19,422 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 96 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 365.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.79ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 420.16ms IncrementalHoareTripleChecker+Time [2021-11-04 15:19:19,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 0 Invalid, 562 Unknown, 0 Unchecked, 1.79ms Time], IncrementalHoareTripleChecker [24 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 420.16ms Time] [2021-11-04 15:19:19,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-11-04 15:19:19,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 187. [2021-11-04 15:19:19,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 181 states have (on average 1.2430939226519337) internal successors, (225), 186 states have internal predecessors, (225), 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) [2021-11-04 15:19:19,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 225 transitions. [2021-11-04 15:19:19,425 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 225 transitions. Word has length 96 [2021-11-04 15:19:19,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 15:19:19,426 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 225 transitions. [2021-11-04 15:19:19,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) [2021-11-04 15:19:19,426 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 225 transitions. [2021-11-04 15:19:19,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-04 15:19:19,426 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 15:19:19,426 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 15:19:19,446 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-04 15:19:19,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 15:19:19,635 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-04 15:19:19,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 15:19:19,636 INFO L85 PathProgramCache]: Analyzing trace with hash -312930543, now seen corresponding path program 1 times [2021-11-04 15:19:19,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 15:19:19,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354264662] [2021-11-04 15:19:19,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 15:19:19,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 15:19:19,645 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-04 15:19:19,645 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [616110631] [2021-11-04 15:19:19,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 15:19:19,646 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 15:19:19,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 15:19:19,659 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) [2021-11-04 15:19:19,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-04 15:19:19,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 15:19:19,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-04 15:19:19,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 15:19:19,995 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 15:19:19,996 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-04 15:19:19,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 15:19:19,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354264662] [2021-11-04 15:19:19,996 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-04 15:19:19,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616110631] [2021-11-04 15:19:19,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616110631] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 15:19:19,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 15:19:19,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 15:19:19,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005667186] [2021-11-04 15:19:19,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 15:19:19,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 15:19:19,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 15:19:19,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 15:19:19,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 15:19:19,998 INFO L87 Difference]: Start difference. First operand 187 states and 225 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2021-11-04 15:19:20,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 15:19:20,586 INFO L93 Difference]: Finished difference Result 486 states and 579 transitions. [2021-11-04 15:19:20,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 15:19:20,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 96 [2021-11-04 15:19:20,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 15:19:20,587 INFO L225 Difference]: With dead ends: 486 [2021-11-04 15:19:20,588 INFO L226 Difference]: Without dead ends: 303 [2021-11-04 15:19:20,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.27ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 15:19:20,601 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 94 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 505.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.04ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 571.92ms IncrementalHoareTripleChecker+Time [2021-11-04 15:19:20,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 0 Invalid, 455 Unknown, 0 Unchecked, 1.04ms Time], IncrementalHoareTripleChecker [3 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 571.92ms Time] [2021-11-04 15:19:20,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2021-11-04 15:19:20,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 291. [2021-11-04 15:19:20,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 285 states have (on average 1.2280701754385965) internal successors, (350), 290 states have internal predecessors, (350), 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) [2021-11-04 15:19:20,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 350 transitions. [2021-11-04 15:19:20,608 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 350 transitions. Word has length 96 [2021-11-04 15:19:20,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 15:19:20,608 INFO L470 AbstractCegarLoop]: Abstraction has 291 states and 350 transitions. [2021-11-04 15:19:20,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2021-11-04 15:19:20,608 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 350 transitions. [2021-11-04 15:19:20,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-04 15:19:20,609 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 15:19:20,609 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 15:19:20,627 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-04 15:19:20,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 15:19:20,827 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-04 15:19:20,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 15:19:20,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1090926304, now seen corresponding path program 1 times [2021-11-04 15:19:20,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 15:19:20,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840566721] [2021-11-04 15:19:20,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 15:19:20,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 15:19:20,837 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-04 15:19:20,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [253651214] [2021-11-04 15:19:20,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 15:19:20,837 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 15:19:20,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 15:19:20,849 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) [2021-11-04 15:19:20,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-04 15:19:21,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 15:19:21,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-04 15:19:21,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 15:19:21,150 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 15:19:21,150 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-04 15:19:21,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 15:19:21,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840566721] [2021-11-04 15:19:21,151 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-04 15:19:21,153 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253651214] [2021-11-04 15:19:21,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253651214] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 15:19:21,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 15:19:21,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 15:19:21,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781692033] [2021-11-04 15:19:21,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 15:19:21,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 15:19:21,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 15:19:21,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 15:19:21,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 15:19:21,155 INFO L87 Difference]: Start difference. First operand 291 states and 350 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 15:19:21,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 15:19:21,538 INFO L93 Difference]: Finished difference Result 536 states and 651 transitions. [2021-11-04 15:19:21,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 15:19:21,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-11-04 15:19:21,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 15:19:21,540 INFO L225 Difference]: With dead ends: 536 [2021-11-04 15:19:21,540 INFO L226 Difference]: Without dead ends: 293 [2021-11-04 15:19:21,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.64ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 15:19:21,541 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 318.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.47ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 366.37ms IncrementalHoareTripleChecker+Time [2021-11-04 15:19:21,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 422 Unknown, 0 Unchecked, 1.47ms Time], IncrementalHoareTripleChecker [2 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 366.37ms Time] [2021-11-04 15:19:21,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2021-11-04 15:19:21,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2021-11-04 15:19:21,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 287 states have (on average 1.2264808362369337) internal successors, (352), 292 states have internal predecessors, (352), 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) [2021-11-04 15:19:21,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 352 transitions. [2021-11-04 15:19:21,547 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 352 transitions. Word has length 103 [2021-11-04 15:19:21,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 15:19:21,547 INFO L470 AbstractCegarLoop]: Abstraction has 293 states and 352 transitions. [2021-11-04 15:19:21,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 15:19:21,548 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 352 transitions. [2021-11-04 15:19:21,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-04 15:19:21,549 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 15:19:21,549 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 15:19:21,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-04 15:19:21,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 15:19:21,767 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-04 15:19:21,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 15:19:21,768 INFO L85 PathProgramCache]: Analyzing trace with hash 77446145, now seen corresponding path program 1 times [2021-11-04 15:19:21,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 15:19:21,768 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443392597] [2021-11-04 15:19:21,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 15:19:21,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 15:19:21,778 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-04 15:19:21,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1629294149] [2021-11-04 15:19:21,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 15:19:21,779 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 15:19:21,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 15:19:21,780 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) [2021-11-04 15:19:21,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-04 15:19:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 15:19:21,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-04 15:19:21,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 15:19:22,035 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-04 15:19:22,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-04 15:19:22,173 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-04 15:19:22,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 15:19:22,174 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443392597] [2021-11-04 15:19:22,174 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-04 15:19:22,174 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629294149] [2021-11-04 15:19:22,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629294149] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-04 15:19:22,174 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-04 15:19:22,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-11-04 15:19:22,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194862228] [2021-11-04 15:19:22,175 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-04 15:19:22,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-04 15:19:22,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 15:19:22,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-04 15:19:22,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-04 15:19:22,176 INFO L87 Difference]: Start difference. First operand 293 states and 352 transitions. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 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) [2021-11-04 15:19:22,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 15:19:22,716 INFO L93 Difference]: Finished difference Result 544 states and 663 transitions. [2021-11-04 15:19:22,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-04 15:19:22,717 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 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 105 [2021-11-04 15:19:22,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 15:19:22,718 INFO L225 Difference]: With dead ends: 544 [2021-11-04 15:19:22,718 INFO L226 Difference]: Without dead ends: 299 [2021-11-04 15:19:22,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.34ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-04 15:19:22,719 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 441.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.01ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 527.35ms IncrementalHoareTripleChecker+Time [2021-11-04 15:19:22,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 851 Unknown, 0 Unchecked, 2.01ms Time], IncrementalHoareTripleChecker [11 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 527.35ms Time] [2021-11-04 15:19:22,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2021-11-04 15:19:22,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2021-11-04 15:19:22,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 293 states have (on average 1.2218430034129693) internal successors, (358), 298 states have internal predecessors, (358), 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) [2021-11-04 15:19:22,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 358 transitions. [2021-11-04 15:19:22,724 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 358 transitions. Word has length 105 [2021-11-04 15:19:22,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 15:19:22,724 INFO L470 AbstractCegarLoop]: Abstraction has 299 states and 358 transitions. [2021-11-04 15:19:22,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 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) [2021-11-04 15:19:22,724 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 358 transitions. [2021-11-04 15:19:22,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-04 15:19:22,725 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 15:19:22,725 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 15:19:22,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-04 15:19:22,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 15:19:22,934 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-04 15:19:22,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 15:19:22,934 INFO L85 PathProgramCache]: Analyzing trace with hash -383990624, now seen corresponding path program 2 times [2021-11-04 15:19:22,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 15:19:22,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941115890] [2021-11-04 15:19:22,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 15:19:22,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 15:19:22,942 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-04 15:19:22,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [104707030] [2021-11-04 15:19:22,943 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-04 15:19:22,943 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 15:19:22,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 15:19:22,944 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) [2021-11-04 15:19:22,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-04 15:19:23,060 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-04 15:19:23,061 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-04 15:19:23,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-04 15:19:23,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 15:19:23,256 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 15:19:23,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-04 15:19:23,453 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 15:19:23,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 15:19:23,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941115890] [2021-11-04 15:19:23,454 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-04 15:19:23,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104707030] [2021-11-04 15:19:23,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104707030] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-04 15:19:23,454 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-04 15:19:23,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-11-04 15:19:23,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540138518] [2021-11-04 15:19:23,454 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-04 15:19:23,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-04 15:19:23,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 15:19:23,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-04 15:19:23,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-04 15:19:23,455 INFO L87 Difference]: Start difference. First operand 299 states and 358 transitions. Second operand has 12 states, 12 states have (on average 9.5) internal successors, (114), 12 states have internal predecessors, (114), 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) [2021-11-04 15:19:23,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 15:19:23,923 INFO L93 Difference]: Finished difference Result 562 states and 687 transitions. [2021-11-04 15:19:23,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-04 15:19:23,924 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 12 states have internal predecessors, (114), 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 111 [2021-11-04 15:19:23,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 15:19:23,925 INFO L225 Difference]: With dead ends: 562 [2021-11-04 15:19:23,925 INFO L226 Difference]: Without dead ends: 311 [2021-11-04 15:19:23,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 58.12ms TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-04 15:19:23,925 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 365.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.43ms SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 453.14ms IncrementalHoareTripleChecker+Time [2021-11-04 15:19:23,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 683 Unknown, 0 Unchecked, 1.43ms Time], IncrementalHoareTripleChecker [38 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 453.14ms Time] [2021-11-04 15:19:23,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2021-11-04 15:19:23,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2021-11-04 15:19:23,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 305 states have (on average 1.2131147540983607) internal successors, (370), 310 states have internal predecessors, (370), 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) [2021-11-04 15:19:23,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 370 transitions. [2021-11-04 15:19:23,931 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 370 transitions. Word has length 111 [2021-11-04 15:19:23,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 15:19:23,931 INFO L470 AbstractCegarLoop]: Abstraction has 311 states and 370 transitions. [2021-11-04 15:19:23,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 12 states have internal predecessors, (114), 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) [2021-11-04 15:19:23,932 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 370 transitions. [2021-11-04 15:19:23,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-04 15:19:23,932 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 15:19:23,933 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 15:19:23,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-04 15:19:24,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-04 15:19:24,145 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-04 15:19:24,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 15:19:24,146 INFO L85 PathProgramCache]: Analyzing trace with hash 562679104, now seen corresponding path program 3 times [2021-11-04 15:19:24,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 15:19:24,146 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62702946] [2021-11-04 15:19:24,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 15:19:24,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 15:19:24,159 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-04 15:19:24,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1902604794] [2021-11-04 15:19:24,160 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-04 15:19:24,160 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 15:19:24,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 15:19:24,182 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) [2021-11-04 15:19:24,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-04 15:19:24,319 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-04 15:19:24,320 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-04 15:19:24,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-04 15:19:24,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 15:19:24,534 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-11-04 15:19:24,534 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-04 15:19:24,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 15:19:24,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62702946] [2021-11-04 15:19:24,535 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-04 15:19:24,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902604794] [2021-11-04 15:19:24,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902604794] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 15:19:24,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 15:19:24,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-04 15:19:24,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103027488] [2021-11-04 15:19:24,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 15:19:24,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 15:19:24,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 15:19:24,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 15:19:24,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 15:19:24,536 INFO L87 Difference]: Start difference. First operand 311 states and 370 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 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) [2021-11-04 15:19:24,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 15:19:24,816 INFO L93 Difference]: Finished difference Result 514 states and 611 transitions. [2021-11-04 15:19:24,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 15:19:24,817 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 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 123 [2021-11-04 15:19:24,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 15:19:24,818 INFO L225 Difference]: With dead ends: 514 [2021-11-04 15:19:24,818 INFO L226 Difference]: Without dead ends: 251 [2021-11-04 15:19:24,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.23ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 15:19:24,818 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 308 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 219.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.22ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 265.43ms IncrementalHoareTripleChecker+Time [2021-11-04 15:19:24,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [308 Valid, 0 Invalid, 315 Unknown, 0 Unchecked, 1.22ms Time], IncrementalHoareTripleChecker [1 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 265.43ms Time] [2021-11-04 15:19:24,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-11-04 15:19:24,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2021-11-04 15:19:24,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 245 states have (on average 1.1918367346938776) internal successors, (292), 250 states have internal predecessors, (292), 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) [2021-11-04 15:19:24,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 292 transitions. [2021-11-04 15:19:24,823 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 292 transitions. Word has length 123 [2021-11-04 15:19:24,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 15:19:24,824 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 292 transitions. [2021-11-04 15:19:24,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 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) [2021-11-04 15:19:24,824 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 292 transitions. [2021-11-04 15:19:24,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-04 15:19:24,825 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 15:19:24,825 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 15:19:24,850 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-04 15:19:25,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 15:19:25,026 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-04 15:19:25,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 15:19:25,026 INFO L85 PathProgramCache]: Analyzing trace with hash 455085018, now seen corresponding path program 1 times [2021-11-04 15:19:25,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 15:19:25,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508379957] [2021-11-04 15:19:25,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 15:19:25,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 15:19:25,036 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-04 15:19:25,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1772332314] [2021-11-04 15:19:25,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 15:19:25,036 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 15:19:25,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 15:19:25,037 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) [2021-11-04 15:19:25,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-04 15:19:25,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 15:19:25,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-04 15:19:25,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 15:19:25,474 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 2 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-04 15:19:25,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-04 15:19:25,811 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 2 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-04 15:19:25,811 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 15:19:25,811 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508379957] [2021-11-04 15:19:25,811 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-04 15:19:25,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772332314] [2021-11-04 15:19:25,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772332314] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-04 15:19:25,812 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-04 15:19:25,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-11-04 15:19:25,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46433007] [2021-11-04 15:19:25,812 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-04 15:19:25,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-04 15:19:25,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 15:19:25,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-04 15:19:25,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-11-04 15:19:25,814 INFO L87 Difference]: Start difference. First operand 251 states and 292 transitions. Second operand has 24 states, 24 states have (on average 5.541666666666667) internal successors, (133), 24 states have internal predecessors, (133), 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) [2021-11-04 15:19:26,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 15:19:26,380 INFO L93 Difference]: Finished difference Result 465 states and 565 transitions. [2021-11-04 15:19:26,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-04 15:19:26,381 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 5.541666666666667) internal successors, (133), 24 states have internal predecessors, (133), 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 130 [2021-11-04 15:19:26,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 15:19:26,381 INFO L225 Difference]: With dead ends: 465 [2021-11-04 15:19:26,382 INFO L226 Difference]: Without dead ends: 275 [2021-11-04 15:19:26,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 204.10ms TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-11-04 15:19:26,383 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 442.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.88ms SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 537.84ms IncrementalHoareTripleChecker+Time [2021-11-04 15:19:26,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 763 Unknown, 0 Unchecked, 1.88ms Time], IncrementalHoareTripleChecker [97 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 537.84ms Time] [2021-11-04 15:19:26,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-11-04 15:19:26,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 275. [2021-11-04 15:19:26,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 269 states have (on average 1.174721189591078) internal successors, (316), 274 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 15:19:26,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 316 transitions. [2021-11-04 15:19:26,389 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 316 transitions. Word has length 130 [2021-11-04 15:19:26,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 15:19:26,389 INFO L470 AbstractCegarLoop]: Abstraction has 275 states and 316 transitions. [2021-11-04 15:19:26,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.541666666666667) internal successors, (133), 24 states have internal predecessors, (133), 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) [2021-11-04 15:19:26,390 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 316 transitions. [2021-11-04 15:19:26,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-04 15:19:26,390 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 15:19:26,391 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 15:19:26,418 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-04 15:19:26,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-04 15:19:26,591 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-04 15:19:26,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 15:19:26,592 INFO L85 PathProgramCache]: Analyzing trace with hash -535721318, now seen corresponding path program 2 times [2021-11-04 15:19:26,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 15:19:26,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982912345] [2021-11-04 15:19:26,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 15:19:26,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 15:19:26,608 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-04 15:19:26,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1525981967] [2021-11-04 15:19:26,608 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-04 15:19:26,623 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 15:19:26,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 15:19:26,624 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) [2021-11-04 15:19:26,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-04 15:19:26,788 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-04 15:19:26,788 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-04 15:19:26,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-04 15:19:26,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 15:19:27,309 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 2 proven. 253 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2021-11-04 15:19:27,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-04 15:19:28,269 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 2 proven. 253 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2021-11-04 15:19:28,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 15:19:28,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982912345] [2021-11-04 15:19:28,269 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-04 15:19:28,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525981967] [2021-11-04 15:19:28,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525981967] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-04 15:19:28,270 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-04 15:19:28,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 48 [2021-11-04 15:19:28,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099951537] [2021-11-04 15:19:28,270 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-04 15:19:28,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-11-04 15:19:28,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 15:19:28,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-11-04 15:19:28,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1127, Invalid=1129, Unknown=0, NotChecked=0, Total=2256 [2021-11-04 15:19:28,272 INFO L87 Difference]: Start difference. First operand 275 states and 316 transitions. Second operand has 48 states, 48 states have (on average 3.2708333333333335) internal successors, (157), 48 states have internal predecessors, (157), 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) [2021-11-04 15:19:29,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 15:19:29,358 INFO L93 Difference]: Finished difference Result 521 states and 641 transitions. [2021-11-04 15:19:29,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-04 15:19:29,358 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 3.2708333333333335) internal successors, (157), 48 states have internal predecessors, (157), 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 154 [2021-11-04 15:19:29,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 15:19:29,359 INFO L225 Difference]: With dead ends: 521 [2021-11-04 15:19:29,359 INFO L226 Difference]: Without dead ends: 319 [2021-11-04 15:19:29,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 924.86ms TimeCoverageRelationStatistics Valid=1127, Invalid=1129, Unknown=0, NotChecked=0, Total=2256 [2021-11-04 15:19:29,361 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 1124 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 865.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.31ms SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 1124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1026.62ms IncrementalHoareTripleChecker+Time [2021-11-04 15:19:29,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 1329 Unknown, 0 Unchecked, 3.31ms Time], IncrementalHoareTripleChecker [205 Valid, 1124 Invalid, 0 Unknown, 0 Unchecked, 1026.62ms Time] [2021-11-04 15:19:29,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-11-04 15:19:29,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2021-11-04 15:19:29,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 313 states have (on average 1.1501597444089458) internal successors, (360), 318 states have internal predecessors, (360), 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) [2021-11-04 15:19:29,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 360 transitions. [2021-11-04 15:19:29,371 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 360 transitions. Word has length 154 [2021-11-04 15:19:29,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 15:19:29,371 INFO L470 AbstractCegarLoop]: Abstraction has 319 states and 360 transitions. [2021-11-04 15:19:29,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 3.2708333333333335) internal successors, (157), 48 states have internal predecessors, (157), 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) [2021-11-04 15:19:29,371 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 360 transitions. [2021-11-04 15:19:29,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-04 15:19:29,373 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 15:19:29,373 INFO L514 BasicCegarLoop]: trace histogram [44, 44, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 15:19:29,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-04 15:19:29,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-04 15:19:29,596 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-04 15:19:29,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 15:19:29,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1925066490, now seen corresponding path program 3 times [2021-11-04 15:19:29,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 15:19:29,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277091653] [2021-11-04 15:19:29,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 15:19:29,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 15:19:29,611 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-04 15:19:29,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [936375128] [2021-11-04 15:19:29,612 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-04 15:19:29,620 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 15:19:29,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 15:19:29,622 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) [2021-11-04 15:19:29,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process Killed by 15