./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe018_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8d31f386 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/pthread-wmm/safe018_tso.opt.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 aae43c48d6bb273b2091b89bffd563cd24fb680d 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Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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/pthread-wmm/safe018_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 aae43c48d6bb273b2091b89bffd563cd24fb680d .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-05 15:55:58,562 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-05 15:55:58,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-05 15:55:58,596 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-05 15:55:58,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-05 15:55:58,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-05 15:55:58,600 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-05 15:55:58,604 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-05 15:55:58,606 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-05 15:55:58,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-05 15:55:58,610 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-05 15:55:58,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-05 15:55:58,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-05 15:55:58,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-05 15:55:58,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-05 15:55:58,615 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-05 15:55:58,617 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-05 15:55:58,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-05 15:55:58,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-05 15:55:58,623 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-05 15:55:58,624 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-05 15:55:58,625 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-05 15:55:58,632 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-05 15:55:58,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-05 15:55:58,637 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-05 15:55:58,637 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-05 15:55:58,638 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-05 15:55:58,639 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-05 15:55:58,639 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-05 15:55:58,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-05 15:55:58,640 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-05 15:55:58,640 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-05 15:55:58,641 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-05 15:55:58,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-05 15:55:58,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-05 15:55:58,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-05 15:55:58,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-05 15:55:58,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-05 15:55:58,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-05 15:55:58,645 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-05 15:55:58,645 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-05 15:55:58,646 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-05 15:55:58,674 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-05 15:55:58,674 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-05 15:55:58,676 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-05 15:55:58,676 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-05 15:55:58,676 INFO L138 SettingsManager]: * Use SBE=true [2021-07-05 15:55:58,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-05 15:55:58,677 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-05 15:55:58,677 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-05 15:55:58,677 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-05 15:55:58,677 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-05 15:55:58,678 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-05 15:55:58,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-05 15:55:58,678 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-05 15:55:58,678 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-05 15:55:58,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-05 15:55:58,679 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-05 15:55:58,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-05 15:55:58,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-05 15:55:58,679 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-05 15:55:58,679 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-05 15:55:58,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 15:55:58,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-05 15:55:58,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-05 15:55:58,680 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-05 15:55:58,680 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-05 15:55:58,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-05 15:55:58,681 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-05 15:55:58,681 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-05 15:55:58,681 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aae43c48d6bb273b2091b89bffd563cd24fb680d [2021-07-05 15:55:58,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-05 15:55:58,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-05 15:55:58,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-05 15:55:58,978 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-05 15:55:58,978 INFO L275 PluginConnector]: CDTParser initialized [2021-07-05 15:55:58,979 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe018_tso.opt.i [2021-07-05 15:55:59,021 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4730f842b/83c5a0db9e884c68ba564d9bba4379d9/FLAG2e2fc7d32 [2021-07-05 15:55:59,417 INFO L306 CDTParser]: Found 1 translation units. [2021-07-05 15:55:59,420 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe018_tso.opt.i [2021-07-05 15:55:59,432 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4730f842b/83c5a0db9e884c68ba564d9bba4379d9/FLAG2e2fc7d32 [2021-07-05 15:55:59,782 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4730f842b/83c5a0db9e884c68ba564d9bba4379d9 [2021-07-05 15:55:59,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-05 15:55:59,786 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-05 15:55:59,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-05 15:55:59,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-05 15:55:59,792 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-05 15:55:59,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 03:55:59" (1/1) ... [2021-07-05 15:55:59,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@163857d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:55:59, skipping insertion in model container [2021-07-05 15:55:59,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 03:55:59" (1/1) ... [2021-07-05 15:55:59,798 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-05 15:55:59,835 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-05 15:55:59,970 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe018_tso.opt.i[949,962] [2021-07-05 15:56:00,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 15:56:00,131 INFO L203 MainTranslator]: Completed pre-run [2021-07-05 15:56:00,142 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe018_tso.opt.i[949,962] [2021-07-05 15:56:00,179 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 15:56:00,225 INFO L208 MainTranslator]: Completed translation [2021-07-05 15:56:00,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:56:00 WrapperNode [2021-07-05 15:56:00,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-05 15:56:00,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-05 15:56:00,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-05 15:56:00,226 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-05 15:56:00,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:56:00" (1/1) ... [2021-07-05 15:56:00,239 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:56:00" (1/1) ... [2021-07-05 15:56:00,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-05 15:56:00,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-05 15:56:00,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-05 15:56:00,262 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-05 15:56:00,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:56:00" (1/1) ... [2021-07-05 15:56:00,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:56:00" (1/1) ... [2021-07-05 15:56:00,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:56:00" (1/1) ... [2021-07-05 15:56:00,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:56:00" (1/1) ... [2021-07-05 15:56:00,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:56:00" (1/1) ... [2021-07-05 15:56:00,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:56:00" (1/1) ... [2021-07-05 15:56:00,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:56:00" (1/1) ... [2021-07-05 15:56:00,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-05 15:56:00,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-05 15:56:00,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-05 15:56:00,305 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-05 15:56:00,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:56:00" (1/1) ... [2021-07-05 15:56:00,310 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 15:56:00,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 15:56:00,324 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) [2021-07-05 15:56:00,345 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 [2021-07-05 15:56:00,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-05 15:56:00,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-05 15:56:00,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-05 15:56:00,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-05 15:56:00,357 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-05 15:56:00,357 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-05 15:56:00,357 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-05 15:56:00,357 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-05 15:56:00,357 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-07-05 15:56:00,357 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-07-05 15:56:00,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-05 15:56:00,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-05 15:56:00,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-05 15:56:00,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-05 15:56:00,359 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-05 15:56:00,574 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-05 15:56:00,575 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-05 15:56:00,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 03:56:00 BoogieIcfgContainer [2021-07-05 15:56:00,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-05 15:56:00,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-05 15:56:00,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-05 15:56:00,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-05 15:56:00,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.07 03:55:59" (1/3) ... [2021-07-05 15:56:00,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@666274d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 03:56:00, skipping insertion in model container [2021-07-05 15:56:00,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:56:00" (2/3) ... [2021-07-05 15:56:00,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@666274d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 03:56:00, skipping insertion in model container [2021-07-05 15:56:00,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 03:56:00" (3/3) ... [2021-07-05 15:56:00,599 INFO L111 eAbstractionObserver]: Analyzing ICFG safe018_tso.opt.i [2021-07-05 15:56:00,604 WARN L144 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-05 15:56:00,604 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-05 15:56:00,605 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-05 15:56:00,605 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-05 15:56:00,634 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,636 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,636 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,636 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,637 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,637 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,637 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,637 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,637 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,638 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,638 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,639 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,639 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,640 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,640 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,640 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,640 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,642 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,642 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,642 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,642 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,643 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,643 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,644 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,645 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,645 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,645 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,645 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,645 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,646 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,646 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,646 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,646 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,647 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,647 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,647 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,649 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,651 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,656 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,657 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,657 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,658 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,661 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,661 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,661 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,661 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:00,665 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-05 15:56:00,698 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 15:56:00,704 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 15:56:00,704 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 15:56:00,716 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-07-05 15:56:00,724 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 83 transitions, 181 flow [2021-07-05 15:56:00,726 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 83 transitions, 181 flow [2021-07-05 15:56:00,727 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 83 transitions, 181 flow [2021-07-05 15:56:00,781 INFO L129 PetriNetUnfolder]: 2/80 cut-off events. [2021-07-05 15:56:00,782 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-07-05 15:56:00,784 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 80 events. 2/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2021-07-05 15:56:00,787 INFO L116 LiptonReduction]: Number of co-enabled transitions 1348 [2021-07-05 15:56:02,845 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2021-07-05 15:56:03,089 INFO L131 LiptonReduction]: Checked pairs total: 2439 [2021-07-05 15:56:03,090 INFO L133 LiptonReduction]: Total number of compositions: 74 [2021-07-05 15:56:03,094 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2021-07-05 15:56:03,106 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 226 states, 224 states have (on average 2.830357142857143) internal successors, (634), 225 states have internal predecessors, (634), 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) [2021-07-05 15:56:03,108 INFO L276 IsEmpty]: Start isEmpty. Operand has 226 states, 224 states have (on average 2.830357142857143) internal successors, (634), 225 states have internal predecessors, (634), 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) [2021-07-05 15:56:03,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-07-05 15:56:03,111 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 15:56:03,112 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 15:56:03,112 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 15:56:03,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 15:56:03,117 INFO L82 PathProgramCache]: Analyzing trace with hash -511153681, now seen corresponding path program 1 times [2021-07-05 15:56:03,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 15:56:03,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148734254] [2021-07-05 15:56:03,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 15:56:03,123 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 15:56:03,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 15:56:03,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:03,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:03,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 15:56:03,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 15:56:03,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148734254] [2021-07-05 15:56:03,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148734254] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 15:56:03,271 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 15:56:03,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-07-05 15:56:03,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192490413] [2021-07-05 15:56:03,275 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-05 15:56:03,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 15:56:03,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-05 15:56:03,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 15:56:03,285 INFO L87 Difference]: Start difference. First operand has 226 states, 224 states have (on average 2.830357142857143) internal successors, (634), 225 states have internal predecessors, (634), 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 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 15:56:03,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 15:56:03,307 INFO L93 Difference]: Finished difference Result 214 states and 593 transitions. [2021-07-05 15:56:03,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-05 15:56:03,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-07-05 15:56:03,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 15:56:03,315 INFO L225 Difference]: With dead ends: 214 [2021-07-05 15:56:03,315 INFO L226 Difference]: Without dead ends: 166 [2021-07-05 15:56:03,316 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 15:56:03,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-07-05 15:56:03,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2021-07-05 15:56:03,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 165 states have (on average 2.672727272727273) internal successors, (441), 165 states have internal predecessors, (441), 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) [2021-07-05 15:56:03,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 441 transitions. [2021-07-05 15:56:03,347 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 441 transitions. Word has length 8 [2021-07-05 15:56:03,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 15:56:03,347 INFO L442 AbstractCegarLoop]: Abstraction has 166 states and 441 transitions. [2021-07-05 15:56:03,347 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 15:56:03,348 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2021-07-05 15:56:03,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-07-05 15:56:03,348 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 15:56:03,348 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 15:56:03,349 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-05 15:56:03,349 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 15:56:03,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 15:56:03,349 INFO L82 PathProgramCache]: Analyzing trace with hash 457141762, now seen corresponding path program 1 times [2021-07-05 15:56:03,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 15:56:03,350 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267881453] [2021-07-05 15:56:03,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 15:56:03,350 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 15:56:03,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 15:56:03,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:03,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:03,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:03,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-05 15:56:03,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 15:56:03,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 15:56:03,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267881453] [2021-07-05 15:56:03,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267881453] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 15:56:03,408 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 15:56:03,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-05 15:56:03,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120074434] [2021-07-05 15:56:03,409 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-05 15:56:03,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 15:56:03,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-05 15:56:03,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-05 15:56:03,410 INFO L87 Difference]: Start difference. First operand 166 states and 441 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2021-07-05 15:56:03,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 15:56:03,429 INFO L93 Difference]: Finished difference Result 181 states and 481 transitions. [2021-07-05 15:56:03,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-05 15:56:03,430 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 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 [2021-07-05 15:56:03,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 15:56:03,431 INFO L225 Difference]: With dead ends: 181 [2021-07-05 15:56:03,431 INFO L226 Difference]: Without dead ends: 181 [2021-07-05 15:56:03,432 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-05 15:56:03,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-07-05 15:56:03,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2021-07-05 15:56:03,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 2.672222222222222) internal successors, (481), 180 states have internal predecessors, (481), 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) [2021-07-05 15:56:03,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 481 transitions. [2021-07-05 15:56:03,442 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 481 transitions. Word has length 9 [2021-07-05 15:56:03,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 15:56:03,442 INFO L442 AbstractCegarLoop]: Abstraction has 181 states and 481 transitions. [2021-07-05 15:56:03,443 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2021-07-05 15:56:03,443 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 481 transitions. [2021-07-05 15:56:03,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-07-05 15:56:03,444 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 15:56:03,444 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 15:56:03,444 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-05 15:56:03,444 INFO L374 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 15:56:03,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 15:56:03,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1286440853, now seen corresponding path program 1 times [2021-07-05 15:56:03,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 15:56:03,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438140381] [2021-07-05 15:56:03,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 15:56:03,445 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 15:56:03,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 15:56:03,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:03,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:03,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:03,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:03,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:03,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-05 15:56:03,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 15:56:03,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 15:56:03,490 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438140381] [2021-07-05 15:56:03,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438140381] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 15:56:03,491 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 15:56:03,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-05 15:56:03,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271729010] [2021-07-05 15:56:03,491 INFO L425 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-05 15:56:03,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 15:56:03,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-05 15:56:03,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-07-05 15:56:03,492 INFO L87 Difference]: Start difference. First operand 181 states and 481 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-07-05 15:56:03,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 15:56:03,506 INFO L93 Difference]: Finished difference Result 202 states and 516 transitions. [2021-07-05 15:56:03,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-05 15:56:03,507 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2021-07-05 15:56:03,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 15:56:03,508 INFO L225 Difference]: With dead ends: 202 [2021-07-05 15:56:03,508 INFO L226 Difference]: Without dead ends: 88 [2021-07-05 15:56:03,508 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.6ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-07-05 15:56:03,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-07-05 15:56:03,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2021-07-05 15:56:03,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 87 states have (on average 2.3793103448275863) internal successors, (207), 87 states have internal predecessors, (207), 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) [2021-07-05 15:56:03,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 207 transitions. [2021-07-05 15:56:03,513 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 207 transitions. Word has length 10 [2021-07-05 15:56:03,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 15:56:03,513 INFO L442 AbstractCegarLoop]: Abstraction has 88 states and 207 transitions. [2021-07-05 15:56:03,513 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-07-05 15:56:03,513 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 207 transitions. [2021-07-05 15:56:03,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-07-05 15:56:03,514 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 15:56:03,514 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 15:56:03,514 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-05 15:56:03,514 INFO L374 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 15:56:03,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 15:56:03,515 INFO L82 PathProgramCache]: Analyzing trace with hash 2122811024, now seen corresponding path program 1 times [2021-07-05 15:56:03,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 15:56:03,515 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576793634] [2021-07-05 15:56:03,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 15:56:03,515 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 15:56:03,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 15:56:03,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:03,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:03,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:03,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:03,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:03,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:03,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 15:56:03,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 15:56:03,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576793634] [2021-07-05 15:56:03,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576793634] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 15:56:03,565 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 15:56:03,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-05 15:56:03,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237678346] [2021-07-05 15:56:03,566 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-05 15:56:03,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 15:56:03,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-05 15:56:03,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-05 15:56:03,567 INFO L87 Difference]: Start difference. First operand 88 states and 207 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2021-07-05 15:56:03,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 15:56:03,579 INFO L93 Difference]: Finished difference Result 118 states and 268 transitions. [2021-07-05 15:56:03,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-05 15:56:03,580 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2021-07-05 15:56:03,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 15:56:03,580 INFO L225 Difference]: With dead ends: 118 [2021-07-05 15:56:03,580 INFO L226 Difference]: Without dead ends: 64 [2021-07-05 15:56:03,581 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-05 15:56:03,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-07-05 15:56:03,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-07-05 15:56:03,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 63 states have (on average 2.1746031746031744) internal successors, (137), 63 states have internal predecessors, (137), 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) [2021-07-05 15:56:03,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 137 transitions. [2021-07-05 15:56:03,584 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 137 transitions. Word has length 11 [2021-07-05 15:56:03,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 15:56:03,584 INFO L442 AbstractCegarLoop]: Abstraction has 64 states and 137 transitions. [2021-07-05 15:56:03,584 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2021-07-05 15:56:03,584 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 137 transitions. [2021-07-05 15:56:03,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-07-05 15:56:03,585 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 15:56:03,585 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 15:56:03,585 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-05 15:56:03,585 INFO L374 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 15:56:03,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 15:56:03,586 INFO L82 PathProgramCache]: Analyzing trace with hash -1333031330, now seen corresponding path program 1 times [2021-07-05 15:56:03,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 15:56:03,586 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580786952] [2021-07-05 15:56:03,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 15:56:03,586 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 15:56:03,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 15:56:03,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:03,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:03,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:03,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 15:56:03,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 15:56:03,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 15:56:03,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580786952] [2021-07-05 15:56:03,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580786952] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 15:56:03,624 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 15:56:03,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-05 15:56:03,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331912537] [2021-07-05 15:56:03,625 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-05 15:56:03,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 15:56:03,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-05 15:56:03,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-05 15:56:03,626 INFO L87 Difference]: Start difference. First operand 64 states and 137 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 15:56:03,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 15:56:03,648 INFO L93 Difference]: Finished difference Result 77 states and 150 transitions. [2021-07-05 15:56:03,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-05 15:56:03,649 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-07-05 15:56:03,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 15:56:03,650 INFO L225 Difference]: With dead ends: 77 [2021-07-05 15:56:03,650 INFO L226 Difference]: Without dead ends: 56 [2021-07-05 15:56:03,651 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-05 15:56:03,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-07-05 15:56:03,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2021-07-05 15:56:03,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.981818181818182) internal successors, (109), 55 states have internal predecessors, (109), 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) [2021-07-05 15:56:03,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 109 transitions. [2021-07-05 15:56:03,669 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 109 transitions. Word has length 12 [2021-07-05 15:56:03,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 15:56:03,670 INFO L442 AbstractCegarLoop]: Abstraction has 56 states and 109 transitions. [2021-07-05 15:56:03,670 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 15:56:03,670 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 109 transitions. [2021-07-05 15:56:03,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-07-05 15:56:03,670 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 15:56:03,671 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 15:56:03,671 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-05 15:56:03,671 INFO L374 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 15:56:03,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 15:56:03,671 INFO L82 PathProgramCache]: Analyzing trace with hash 140553767, now seen corresponding path program 1 times [2021-07-05 15:56:03,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 15:56:03,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104985381] [2021-07-05 15:56:03,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 15:56:03,672 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 15:56:03,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 15:56:03,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:03,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:03,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:03,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:03,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:03,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 15:56:03,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 15:56:03,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 15:56:03,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104985381] [2021-07-05 15:56:03,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104985381] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 15:56:03,743 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 15:56:03,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-05 15:56:03,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968351397] [2021-07-05 15:56:03,743 INFO L425 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-05 15:56:03,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 15:56:03,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-05 15:56:03,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-07-05 15:56:03,744 INFO L87 Difference]: Start difference. First operand 56 states and 109 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 15:56:03,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 15:56:03,773 INFO L93 Difference]: Finished difference Result 57 states and 99 transitions. [2021-07-05 15:56:03,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-05 15:56:03,773 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-07-05 15:56:03,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 15:56:03,774 INFO L225 Difference]: With dead ends: 57 [2021-07-05 15:56:03,774 INFO L226 Difference]: Without dead ends: 42 [2021-07-05 15:56:03,774 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 13.0ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-07-05 15:56:03,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-07-05 15:56:03,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-07-05 15:56:03,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.6829268292682926) internal successors, (69), 41 states have internal predecessors, (69), 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) [2021-07-05 15:56:03,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 69 transitions. [2021-07-05 15:56:03,777 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 69 transitions. Word has length 13 [2021-07-05 15:56:03,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 15:56:03,778 INFO L442 AbstractCegarLoop]: Abstraction has 42 states and 69 transitions. [2021-07-05 15:56:03,778 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 15:56:03,778 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 69 transitions. [2021-07-05 15:56:03,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-07-05 15:56:03,779 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 15:56:03,779 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 15:56:03,780 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-05 15:56:03,780 INFO L374 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 15:56:03,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 15:56:03,780 INFO L82 PathProgramCache]: Analyzing trace with hash 62649242, now seen corresponding path program 1 times [2021-07-05 15:56:03,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 15:56:03,781 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33455576] [2021-07-05 15:56:03,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 15:56:03,781 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 15:56:03,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 15:56:03,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:03,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:03,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:03,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:03,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:03,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:03,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:03,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 15:56:03,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 15:56:03,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 15:56:03,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33455576] [2021-07-05 15:56:03,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33455576] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 15:56:03,827 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 15:56:03,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-05 15:56:03,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350109151] [2021-07-05 15:56:03,827 INFO L425 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-05 15:56:03,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 15:56:03,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-05 15:56:03,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-07-05 15:56:03,828 INFO L87 Difference]: Start difference. First operand 42 states and 69 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 15:56:03,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 15:56:03,855 INFO L93 Difference]: Finished difference Result 39 states and 61 transitions. [2021-07-05 15:56:03,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-05 15:56:03,856 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-07-05 15:56:03,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 15:56:03,856 INFO L225 Difference]: With dead ends: 39 [2021-07-05 15:56:03,856 INFO L226 Difference]: Without dead ends: 33 [2021-07-05 15:56:03,856 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 15.0ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-07-05 15:56:03,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-07-05 15:56:03,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-07-05 15:56:03,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.59375) internal successors, (51), 32 states have internal predecessors, (51), 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) [2021-07-05 15:56:03,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions. [2021-07-05 15:56:03,858 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 14 [2021-07-05 15:56:03,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 15:56:03,858 INFO L442 AbstractCegarLoop]: Abstraction has 33 states and 51 transitions. [2021-07-05 15:56:03,859 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 15:56:03,859 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2021-07-05 15:56:03,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-07-05 15:56:03,859 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 15:56:03,859 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 15:56:03,859 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-05 15:56:03,860 INFO L374 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 15:56:03,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 15:56:03,860 INFO L82 PathProgramCache]: Analyzing trace with hash 74010008, now seen corresponding path program 1 times [2021-07-05 15:56:03,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 15:56:03,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666195672] [2021-07-05 15:56:03,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 15:56:03,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 15:56:03,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 15:56:03,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:03,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:03,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:03,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:03,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:03,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-05 15:56:03,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 15:56:03,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 15:56:03,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666195672] [2021-07-05 15:56:03,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666195672] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 15:56:03,892 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 15:56:03,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-05 15:56:03,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901605240] [2021-07-05 15:56:03,892 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-05 15:56:03,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 15:56:03,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-05 15:56:03,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-05 15:56:03,893 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-07-05 15:56:03,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 15:56:03,904 INFO L93 Difference]: Finished difference Result 32 states and 50 transitions. [2021-07-05 15:56:03,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-05 15:56:03,905 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2021-07-05 15:56:03,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 15:56:03,905 INFO L225 Difference]: With dead ends: 32 [2021-07-05 15:56:03,905 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 15:56:03,905 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-05 15:56:03,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 15:56:03,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 15:56:03,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 15:56:03,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 15:56:03,906 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2021-07-05 15:56:03,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 15:56:03,906 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 15:56:03,906 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-07-05 15:56:03,906 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 15:56:03,906 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 15:56:03,908 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-05 15:56:03,909 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 15:56:03,910 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was SAFE (1/4) [2021-07-05 15:56:03,912 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATION ======== [2021-07-05 15:56:03,912 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 15:56:03,912 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 15:56:03,913 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-07-05 15:56:03,913 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 83 transitions, 181 flow [2021-07-05 15:56:03,914 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 83 transitions, 181 flow [2021-07-05 15:56:03,914 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 83 transitions, 181 flow [2021-07-05 15:56:03,921 INFO L129 PetriNetUnfolder]: 2/80 cut-off events. [2021-07-05 15:56:03,921 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-07-05 15:56:03,922 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 80 events. 2/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2021-07-05 15:56:03,923 INFO L116 LiptonReduction]: Number of co-enabled transitions 1348 [2021-07-05 15:56:05,420 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2021-07-05 15:56:05,573 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2021-07-05 15:56:05,893 INFO L131 LiptonReduction]: Checked pairs total: 2402 [2021-07-05 15:56:05,894 INFO L133 LiptonReduction]: Total number of compositions: 72 [2021-07-05 15:56:05,894 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2021-07-05 15:56:05,900 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 274 states, 272 states have (on average 3.0661764705882355) internal successors, (834), 273 states have internal predecessors, (834), 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) [2021-07-05 15:56:05,901 INFO L276 IsEmpty]: Start isEmpty. Operand has 274 states, 272 states have (on average 3.0661764705882355) internal successors, (834), 273 states have internal predecessors, (834), 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) [2021-07-05 15:56:05,902 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 15:56:05,902 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-07-05 15:56:05,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 15:56:05,903 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramCache.addRun(PathProgramCache.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.StrategyFactory.constructStrategy(StrategyFactory.java:135) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.StrategyFactory.constructStrategy(StrategyFactory.java:119) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.isCounterexampleFeasibleInternal(AbstractCegarLoop.java:488) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:382) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:298) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:221) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-07-05 15:56:05,904 INFO L168 Benchmark]: Toolchain (without parser) took 6118.13 ms. Allocated memory was 54.5 MB in the beginning and 203.4 MB in the end (delta: 148.9 MB). Free memory was 29.2 MB in the beginning and 158.6 MB in the end (delta: -129.4 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. [2021-07-05 15:56:05,904 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 54.5 MB. Free memory was 34.5 MB in the beginning and 34.4 MB in the end (delta: 33.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 15:56:05,905 INFO L168 Benchmark]: CACSL2BoogieTranslator took 436.68 ms. Allocated memory was 54.5 MB in the beginning and 73.4 MB in the end (delta: 18.9 MB). Free memory was 29.0 MB in the beginning and 52.1 MB in the end (delta: -23.1 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. [2021-07-05 15:56:05,905 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.44 ms. Allocated memory is still 73.4 MB. Free memory was 52.1 MB in the beginning and 50.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 15:56:05,905 INFO L168 Benchmark]: Boogie Preprocessor took 36.02 ms. Allocated memory is still 73.4 MB. Free memory was 50.1 MB in the beginning and 48.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 15:56:05,906 INFO L168 Benchmark]: RCFGBuilder took 278.40 ms. Allocated memory is still 73.4 MB. Free memory was 48.6 MB in the beginning and 46.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. [2021-07-05 15:56:05,906 INFO L168 Benchmark]: TraceAbstraction took 5326.49 ms. Allocated memory was 73.4 MB in the beginning and 203.4 MB in the end (delta: 130.0 MB). Free memory was 45.6 MB in the beginning and 158.6 MB in the end (delta: -113.0 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. [2021-07-05 15:56:05,907 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 54.5 MB. Free memory was 34.5 MB in the beginning and 34.4 MB in the end (delta: 33.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 436.68 ms. Allocated memory was 54.5 MB in the beginning and 73.4 MB in the end (delta: 18.9 MB). Free memory was 29.0 MB in the beginning and 52.1 MB in the end (delta: -23.1 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.44 ms. Allocated memory is still 73.4 MB. Free memory was 52.1 MB in the beginning and 50.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.02 ms. Allocated memory is still 73.4 MB. Free memory was 50.1 MB in the beginning and 48.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 278.40 ms. Allocated memory is still 73.4 MB. Free memory was 48.6 MB in the beginning and 46.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5326.49 ms. Allocated memory was 73.4 MB in the beginning and 203.4 MB in the end (delta: 130.0 MB). Free memory was 45.6 MB in the beginning and 158.6 MB in the end (delta: -113.0 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2364.1ms, 91 PlacesBefore, 30 PlacesAfterwards, 83 TransitionsBefore, 20 TransitionsAfterwards, 1348 CoEnabledTransitionPairs, 6 FixpointIterations, 20 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 74 TotalNumberOfCompositions, 2439 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1443, positive: 1357, positive conditional: 0, positive unconditional: 1357, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 938, positive: 896, positive conditional: 0, positive unconditional: 896, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 938, positive: 888, positive conditional: 0, positive unconditional: 888, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 50, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 178, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 155, negative conditional: 0, negative unconditional: 155, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1443, positive: 461, positive conditional: 0, positive unconditional: 461, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 938, unknown conditional: 0, unknown unconditional: 938] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 54, Positive conditional cache size: 0, Positive unconditional cache size: 54, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1980.1ms, 91 PlacesBefore, 31 PlacesAfterwards, 83 TransitionsBefore, 22 TransitionsAfterwards, 1348 CoEnabledTransitionPairs, 6 FixpointIterations, 20 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 72 TotalNumberOfCompositions, 2402 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1334, positive: 1258, positive conditional: 0, positive unconditional: 1258, negative: 76, negative conditional: 0, negative unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 896, positive: 870, positive conditional: 0, positive unconditional: 870, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 896, positive: 861, positive conditional: 0, positive unconditional: 861, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 35, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 102, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 81, negative conditional: 0, negative unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1334, positive: 388, positive conditional: 0, positive unconditional: 388, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 896, unknown conditional: 0, unknown unconditional: 896] , Statistics on independence cache: Total cache size (in pairs): 54, Positive cache size: 44, Positive conditional cache size: 0, Positive unconditional cache size: 44, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramCache.addRun(PathProgramCache.java:68) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-07-05 15:56:05,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-05 15:56:07,627 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-05 15:56:07,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-05 15:56:07,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-05 15:56:07,661 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-05 15:56:07,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-05 15:56:07,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-05 15:56:07,668 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-05 15:56:07,670 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-05 15:56:07,673 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-05 15:56:07,674 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-05 15:56:07,675 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-05 15:56:07,675 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-05 15:56:07,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-05 15:56:07,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-05 15:56:07,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-05 15:56:07,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-05 15:56:07,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-05 15:56:07,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-05 15:56:07,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-05 15:56:07,688 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-05 15:56:07,689 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-05 15:56:07,690 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-05 15:56:07,691 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-05 15:56:07,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-05 15:56:07,696 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-05 15:56:07,696 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-05 15:56:07,697 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-05 15:56:07,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-05 15:56:07,698 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-05 15:56:07,698 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-05 15:56:07,699 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-05 15:56:07,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-05 15:56:07,700 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-05 15:56:07,701 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-05 15:56:07,701 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-05 15:56:07,702 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-05 15:56:07,702 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-05 15:56:07,702 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-05 15:56:07,703 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-05 15:56:07,704 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-05 15:56:07,707 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-07-05 15:56:07,735 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-05 15:56:07,735 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-05 15:56:07,737 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-05 15:56:07,737 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-05 15:56:07,738 INFO L138 SettingsManager]: * Use SBE=true [2021-07-05 15:56:07,738 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-05 15:56:07,738 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-05 15:56:07,738 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-05 15:56:07,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-05 15:56:07,739 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-05 15:56:07,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-05 15:56:07,740 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-05 15:56:07,740 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-07-05 15:56:07,740 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-07-05 15:56:07,740 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-05 15:56:07,740 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-05 15:56:07,740 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-05 15:56:07,741 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-05 15:56:07,741 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-05 15:56:07,741 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-05 15:56:07,741 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-05 15:56:07,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 15:56:07,742 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-05 15:56:07,742 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-05 15:56:07,742 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-05 15:56:07,742 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-07-05 15:56:07,742 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-07-05 15:56:07,742 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-05 15:56:07,742 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-05 15:56:07,743 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-05 15:56:07,743 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aae43c48d6bb273b2091b89bffd563cd24fb680d [2021-07-05 15:56:08,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-05 15:56:08,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-05 15:56:08,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-05 15:56:08,200 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-05 15:56:08,200 INFO L275 PluginConnector]: CDTParser initialized [2021-07-05 15:56:08,201 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe018_tso.opt.i [2021-07-05 15:56:08,242 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a410124c9/90f97dc4d3b2468489396fe9ade6de0d/FLAGd70318101 [2021-07-05 15:56:08,682 INFO L306 CDTParser]: Found 1 translation units. [2021-07-05 15:56:08,682 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe018_tso.opt.i [2021-07-05 15:56:08,700 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a410124c9/90f97dc4d3b2468489396fe9ade6de0d/FLAGd70318101 [2021-07-05 15:56:08,712 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a410124c9/90f97dc4d3b2468489396fe9ade6de0d [2021-07-05 15:56:08,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-05 15:56:08,716 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-05 15:56:08,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-05 15:56:08,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-05 15:56:08,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-05 15:56:08,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 03:56:08" (1/1) ... [2021-07-05 15:56:08,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34dc4ed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:56:08, skipping insertion in model container [2021-07-05 15:56:08,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 03:56:08" (1/1) ... [2021-07-05 15:56:08,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-05 15:56:08,765 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-05 15:56:08,904 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe018_tso.opt.i[949,962] [2021-07-05 15:56:09,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 15:56:09,051 INFO L203 MainTranslator]: Completed pre-run [2021-07-05 15:56:09,061 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe018_tso.opt.i[949,962] [2021-07-05 15:56:09,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 15:56:09,154 INFO L208 MainTranslator]: Completed translation [2021-07-05 15:56:09,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:56:09 WrapperNode [2021-07-05 15:56:09,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-05 15:56:09,156 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-05 15:56:09,157 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-05 15:56:09,157 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-05 15:56:09,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:56:09" (1/1) ... [2021-07-05 15:56:09,187 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:56:09" (1/1) ... [2021-07-05 15:56:09,206 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-05 15:56:09,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-05 15:56:09,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-05 15:56:09,209 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-05 15:56:09,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:56:09" (1/1) ... [2021-07-05 15:56:09,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:56:09" (1/1) ... [2021-07-05 15:56:09,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:56:09" (1/1) ... [2021-07-05 15:56:09,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:56:09" (1/1) ... [2021-07-05 15:56:09,234 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:56:09" (1/1) ... [2021-07-05 15:56:09,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:56:09" (1/1) ... [2021-07-05 15:56:09,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:56:09" (1/1) ... [2021-07-05 15:56:09,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-05 15:56:09,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-05 15:56:09,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-05 15:56:09,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-05 15:56:09,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:56:09" (1/1) ... [2021-07-05 15:56:09,259 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 15:56:09,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 15:56:09,272 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) [2021-07-05 15:56:09,274 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 [2021-07-05 15:56:09,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-05 15:56:09,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-05 15:56:09,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-05 15:56:09,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-07-05 15:56:09,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-07-05 15:56:09,315 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-05 15:56:09,315 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-05 15:56:09,315 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-05 15:56:09,315 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-05 15:56:09,315 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-07-05 15:56:09,315 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-07-05 15:56:09,315 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-05 15:56:09,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-05 15:56:09,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-05 15:56:09,317 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-05 15:56:09,532 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-05 15:56:09,532 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-05 15:56:09,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 03:56:09 BoogieIcfgContainer [2021-07-05 15:56:09,533 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-05 15:56:09,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-05 15:56:09,534 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-05 15:56:09,536 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-05 15:56:09,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.07 03:56:08" (1/3) ... [2021-07-05 15:56:09,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ebc2e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 03:56:09, skipping insertion in model container [2021-07-05 15:56:09,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:56:09" (2/3) ... [2021-07-05 15:56:09,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ebc2e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 03:56:09, skipping insertion in model container [2021-07-05 15:56:09,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 03:56:09" (3/3) ... [2021-07-05 15:56:09,538 INFO L111 eAbstractionObserver]: Analyzing ICFG safe018_tso.opt.i [2021-07-05 15:56:09,542 WARN L144 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-05 15:56:09,542 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-05 15:56:09,542 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-05 15:56:09,542 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-05 15:56:09,563 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,563 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,564 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,564 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,564 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,564 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,564 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,564 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,565 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,565 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,565 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,565 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,566 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,566 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,566 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,566 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,566 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,566 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,566 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,567 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,567 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,567 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,567 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,567 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,568 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,568 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,568 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,568 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,568 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,568 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,569 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,569 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,569 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,569 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,569 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,570 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,571 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,571 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,571 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,571 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,574 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,574 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,574 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,575 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,576 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,577 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,577 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,577 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:56:09,578 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-05 15:56:09,602 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 15:56:09,606 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 15:56:09,606 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 15:56:09,613 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-07-05 15:56:09,621 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 84 transitions, 183 flow [2021-07-05 15:56:09,623 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 84 transitions, 183 flow [2021-07-05 15:56:09,624 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 84 transitions, 183 flow [2021-07-05 15:56:09,677 INFO L129 PetriNetUnfolder]: 2/81 cut-off events. [2021-07-05 15:56:09,677 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-07-05 15:56:09,681 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 81 events. 2/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2021-07-05 15:56:09,684 INFO L116 LiptonReduction]: Number of co-enabled transitions 1348 [2021-07-05 15:56:12,411 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-07-05 15:56:12,513 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-07-05 15:56:12,630 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-07-05 15:56:12,963 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-07-05 15:56:13,088 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-07-05 15:56:13,225 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-07-05 15:56:13,353 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-07-05 15:56:13,371 INFO L131 LiptonReduction]: Checked pairs total: 2395 [2021-07-05 15:56:13,375 INFO L133 LiptonReduction]: Total number of compositions: 76 [2021-07-05 15:56:13,392 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2021-07-05 15:56:13,436 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 226 states, 224 states have (on average 2.830357142857143) internal successors, (634), 225 states have internal predecessors, (634), 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) [2021-07-05 15:56:13,439 INFO L276 IsEmpty]: Start isEmpty. Operand has 226 states, 224 states have (on average 2.830357142857143) internal successors, (634), 225 states have internal predecessors, (634), 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) [2021-07-05 15:56:13,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-07-05 15:56:13,457 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 15:56:13,457 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 15:56:13,458 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 15:56:13,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 15:56:13,462 INFO L82 PathProgramCache]: Analyzing trace with hash -152318334, now seen corresponding path program 1 times [2021-07-05 15:56:13,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-07-05 15:56:13,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [203772897] [2021-07-05 15:56:13,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 15:56:13,478 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-07-05 15:56:13,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-07-05 15:56:13,481 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-07-05 15:56:13,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-07-05 15:56:13,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 15:56:13,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-05 15:56:13,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-05 15:56:13,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:13,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:13,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:13,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:13,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:13,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:13,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:13,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:13,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:13,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:13,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:13,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:13,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:13,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:13,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:13,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:13,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:13,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:13,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:13,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:13,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:13,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:13,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:13,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:13,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-05 15:56:13,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:13,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:13,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:13,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 15:56:13,659 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-07-05 15:56:13,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 15:56:13,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 15:56:13,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-05 15:56:13,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 15:56:13,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 15:56:13,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-05 15:56:13,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:13,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:13,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 15:56:13,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-05 15:56:13,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-05 15:56:13,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 15:56:13,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-05 15:56:13,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-05 15:56:13,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,687 INFO L428 QuantifierPusher]: Applying distributivity to a ∨-2-2-2-1 term [2021-07-05 15:56:13,687 INFO L732 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-07-05 15:56:13,689 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 15:56:13,709 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:13,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:13,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:13,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:13,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:13,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:13,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:13,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:13,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:13,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:13,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:13,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:13,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:13,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:13,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:13,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:13,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:13,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:13,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:13,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:13,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:13,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:13,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:13,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 15:56:13,731 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-07-05 15:56:13,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [203772897] [2021-07-05 15:56:13,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [203772897] provided 2 perfect and 0 imperfect interpolant sequences [2021-07-05 15:56:13,732 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-07-05 15:56:13,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-07-05 15:56:13,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737703172] [2021-07-05 15:56:13,735 INFO L425 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-05 15:56:13,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-07-05 15:56:13,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-05 15:56:13,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-07-05 15:56:13,745 INFO L87 Difference]: Start difference. First operand has 226 states, 224 states have (on average 2.830357142857143) internal successors, (634), 225 states have internal predecessors, (634), 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 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2021-07-05 15:56:13,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 15:56:13,812 INFO L93 Difference]: Finished difference Result 157 states and 372 transitions. [2021-07-05 15:56:13,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-05 15:56:13,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-07-05 15:56:13,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 15:56:13,819 INFO L225 Difference]: With dead ends: 157 [2021-07-05 15:56:13,819 INFO L226 Difference]: Without dead ends: 100 [2021-07-05 15:56:13,820 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 31.8ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-07-05 15:56:13,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-07-05 15:56:13,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2021-07-05 15:56:13,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 99 states have (on average 2.1414141414141414) internal successors, (212), 99 states have internal predecessors, (212), 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) [2021-07-05 15:56:13,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 212 transitions. [2021-07-05 15:56:13,843 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 212 transitions. Word has length 8 [2021-07-05 15:56:13,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 15:56:13,844 INFO L442 AbstractCegarLoop]: Abstraction has 100 states and 212 transitions. [2021-07-05 15:56:13,844 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2021-07-05 15:56:13,844 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 212 transitions. [2021-07-05 15:56:13,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-07-05 15:56:13,845 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 15:56:13,845 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 15:56:13,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-07-05 15:56:14,053 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-07-05 15:56:14,054 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 15:56:14,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 15:56:14,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1943192939, now seen corresponding path program 1 times [2021-07-05 15:56:14,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-07-05 15:56:14,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [909125274] [2021-07-05 15:56:14,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 15:56:14,055 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-07-05 15:56:14,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-07-05 15:56:14,056 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-07-05 15:56:14,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-07-05 15:56:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 15:56:14,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-05 15:56:14,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-05 15:56:14,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 15:56:14,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 15:56:14,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 15:56:14,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 15:56:14,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 15:56:14,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 15:56:14,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 15:56:14,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 15:56:14,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-05 15:56:14,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 15:56:14,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-07-05 15:56:14,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 15:56:14,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 15:56:14,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-05 15:56:14,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 15:56:14,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 15:56:14,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-05 15:56:14,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 15:56:14,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-05 15:56:14,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-05 15:56:14,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 15:56:14,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-05 15:56:14,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-05 15:56:14,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,196 INFO L428 QuantifierPusher]: Applying distributivity to a ∨-2-2-2-1 term [2021-07-05 15:56:14,197 INFO L732 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-07-05 15:56:14,197 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 15:56:14,198 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-05 15:56:14,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-05 15:56:14,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-05 15:56:14,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-05 15:56:14,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-05 15:56:14,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-05 15:56:14,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-05 15:56:14,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-05 15:56:14,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 15:56:14,244 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-07-05 15:56:14,244 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [909125274] [2021-07-05 15:56:14,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [909125274] provided 2 perfect and 0 imperfect interpolant sequences [2021-07-05 15:56:14,244 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-07-05 15:56:14,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-07-05 15:56:14,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345841102] [2021-07-05 15:56:14,245 INFO L425 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-05 15:56:14,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-07-05 15:56:14,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-05 15:56:14,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-07-05 15:56:14,246 INFO L87 Difference]: Start difference. First operand 100 states and 212 transitions. Second operand has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 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) [2021-07-05 15:56:14,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 15:56:14,317 INFO L93 Difference]: Finished difference Result 93 states and 196 transitions. [2021-07-05 15:56:14,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-05 15:56:14,318 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-07-05 15:56:14,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 15:56:14,319 INFO L225 Difference]: With dead ends: 93 [2021-07-05 15:56:14,319 INFO L226 Difference]: Without dead ends: 84 [2021-07-05 15:56:14,319 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 45.5ms TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-07-05 15:56:14,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-07-05 15:56:14,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2021-07-05 15:56:14,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 83 states have (on average 2.1686746987951806) internal successors, (180), 83 states have internal predecessors, (180), 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) [2021-07-05 15:56:14,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 180 transitions. [2021-07-05 15:56:14,324 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 180 transitions. Word has length 13 [2021-07-05 15:56:14,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 15:56:14,324 INFO L442 AbstractCegarLoop]: Abstraction has 84 states and 180 transitions. [2021-07-05 15:56:14,324 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 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) [2021-07-05 15:56:14,325 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 180 transitions. [2021-07-05 15:56:14,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-07-05 15:56:14,325 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 15:56:14,325 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 15:56:14,334 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-07-05 15:56:14,533 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-07-05 15:56:14,534 INFO L374 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 15:56:14,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 15:56:14,535 INFO L82 PathProgramCache]: Analyzing trace with hash -461345167, now seen corresponding path program 1 times [2021-07-05 15:56:14,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-07-05 15:56:14,535 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [738647679] [2021-07-05 15:56:14,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 15:56:14,536 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-07-05 15:56:14,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-07-05 15:56:14,541 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-07-05 15:56:14,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-07-05 15:56:14,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 15:56:14,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2021-07-05 15:56:14,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-05 15:56:14,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 15:56:14,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:14,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 15:56:14,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-07-05 15:56:14,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 15:56:14,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-07-05 15:56:14,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-07-05 15:56:14,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 15:56:14,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-07-05 15:56:14,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-07-05 15:56:14,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 15:56:14,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-05 15:56:14,689 INFO L428 QuantifierPusher]: Applying distributivity to a ∨-2-2-2-1 term [2021-07-05 15:56:14,689 INFO L732 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-07-05 15:56:14,689 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 15:56:14,690 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:14,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:14,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 15:56:14,741 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-07-05 15:56:14,741 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [738647679] [2021-07-05 15:56:14,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [738647679] provided 2 perfect and 0 imperfect interpolant sequences [2021-07-05 15:56:14,742 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-07-05 15:56:14,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 4 [2021-07-05 15:56:14,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911004274] [2021-07-05 15:56:14,742 INFO L425 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-05 15:56:14,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-07-05 15:56:14,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-05 15:56:14,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-07-05 15:56:14,743 INFO L87 Difference]: Start difference. First operand 84 states and 180 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2021-07-05 15:56:14,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 15:56:14,765 INFO L93 Difference]: Finished difference Result 103 states and 214 transitions. [2021-07-05 15:56:14,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-05 15:56:14,765 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 16 [2021-07-05 15:56:14,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 15:56:14,766 INFO L225 Difference]: With dead ends: 103 [2021-07-05 15:56:14,766 INFO L226 Difference]: Without dead ends: 42 [2021-07-05 15:56:14,766 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 16.4ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-07-05 15:56:14,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-07-05 15:56:14,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-07-05 15:56:14,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.7560975609756098) internal successors, (72), 41 states have internal predecessors, (72), 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) [2021-07-05 15:56:14,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 72 transitions. [2021-07-05 15:56:14,769 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 72 transitions. Word has length 16 [2021-07-05 15:56:14,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 15:56:14,769 INFO L442 AbstractCegarLoop]: Abstraction has 42 states and 72 transitions. [2021-07-05 15:56:14,769 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2021-07-05 15:56:14,769 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 72 transitions. [2021-07-05 15:56:14,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-07-05 15:56:14,769 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 15:56:14,770 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 15:56:14,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-07-05 15:56:14,978 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-07-05 15:56:14,978 INFO L374 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 15:56:14,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 15:56:14,979 INFO L82 PathProgramCache]: Analyzing trace with hash -1654570573, now seen corresponding path program 2 times [2021-07-05 15:56:14,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-07-05 15:56:14,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1000511043] [2021-07-05 15:56:14,979 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-07-05 15:56:14,979 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-07-05 15:56:14,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-07-05 15:56:14,980 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-07-05 15:56:14,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-07-05 15:56:15,043 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-07-05 15:56:15,043 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-05 15:56:15,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2021-07-05 15:56:15,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-05 15:56:15,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 15:56:15,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 15:56:15,088 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-07-05 15:56:15,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 15:56:15,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-07-05 15:56:15,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-07-05 15:56:15,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 15:56:15,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-07-05 15:56:15,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-07-05 15:56:15,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 15:56:15,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-05 15:56:15,100 INFO L428 QuantifierPusher]: Applying distributivity to a ∨-2-2-2-1 term [2021-07-05 15:56:15,100 INFO L732 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-07-05 15:56:15,100 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 15:56:15,101 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 15:56:15,139 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-07-05 15:56:15,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1000511043] [2021-07-05 15:56:15,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1000511043] provided 2 perfect and 0 imperfect interpolant sequences [2021-07-05 15:56:15,140 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-07-05 15:56:15,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 4 [2021-07-05 15:56:15,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494945670] [2021-07-05 15:56:15,140 INFO L425 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-05 15:56:15,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-07-05 15:56:15,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-05 15:56:15,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-07-05 15:56:15,141 INFO L87 Difference]: Start difference. First operand 42 states and 72 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2021-07-05 15:56:15,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 15:56:15,158 INFO L93 Difference]: Finished difference Result 61 states and 104 transitions. [2021-07-05 15:56:15,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-05 15:56:15,159 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 16 [2021-07-05 15:56:15,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 15:56:15,160 INFO L225 Difference]: With dead ends: 61 [2021-07-05 15:56:15,160 INFO L226 Difference]: Without dead ends: 33 [2021-07-05 15:56:15,160 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 15.0ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-07-05 15:56:15,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-07-05 15:56:15,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-07-05 15:56:15,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.59375) internal successors, (51), 32 states have internal predecessors, (51), 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) [2021-07-05 15:56:15,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions. [2021-07-05 15:56:15,162 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 16 [2021-07-05 15:56:15,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 15:56:15,162 INFO L442 AbstractCegarLoop]: Abstraction has 33 states and 51 transitions. [2021-07-05 15:56:15,163 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2021-07-05 15:56:15,163 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2021-07-05 15:56:15,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-07-05 15:56:15,163 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 15:56:15,163 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 15:56:15,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-07-05 15:56:15,371 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-07-05 15:56:15,372 INFO L374 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 15:56:15,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 15:56:15,373 INFO L82 PathProgramCache]: Analyzing trace with hash -38378063, now seen corresponding path program 3 times [2021-07-05 15:56:15,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-07-05 15:56:15,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [55688367] [2021-07-05 15:56:15,373 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-07-05 15:56:15,373 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-07-05 15:56:15,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-07-05 15:56:15,374 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-07-05 15:56:15,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-07-05 15:56:15,425 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-07-05 15:56:15,425 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-05 15:56:15,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2021-07-05 15:56:15,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-05 15:56:15,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 15:56:15,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:56:15,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 15:56:15,464 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-07-05 15:56:15,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 15:56:15,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-07-05 15:56:15,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-07-05 15:56:15,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 15:56:15,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-07-05 15:56:15,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-07-05 15:56:15,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 15:56:15,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-05 15:56:15,475 INFO L428 QuantifierPusher]: Applying distributivity to a ∨-2-2-2-1 term [2021-07-05 15:56:15,475 INFO L732 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-07-05 15:56:15,475 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 15:56:15,477 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:56:15,518 INFO L142 QuantifierPusher]: treesize reduction 9, result has 10.0 percent of original size [2021-07-05 15:56:15,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:56:15,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:56:15,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 15:56:15,529 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-07-05 15:56:15,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [55688367] [2021-07-05 15:56:15,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [55688367] provided 2 perfect and 0 imperfect interpolant sequences [2021-07-05 15:56:15,530 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-07-05 15:56:15,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-07-05 15:56:15,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306395013] [2021-07-05 15:56:15,530 INFO L425 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-05 15:56:15,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-07-05 15:56:15,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-05 15:56:15,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-07-05 15:56:15,531 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 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) [2021-07-05 15:56:15,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 15:56:15,546 INFO L93 Difference]: Finished difference Result 32 states and 50 transitions. [2021-07-05 15:56:15,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-05 15:56:15,547 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 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 16 [2021-07-05 15:56:15,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 15:56:15,547 INFO L225 Difference]: With dead ends: 32 [2021-07-05 15:56:15,547 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 15:56:15,548 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 29.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-07-05 15:56:15,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 15:56:15,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 15:56:15,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 15:56:15,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 15:56:15,548 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2021-07-05 15:56:15,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 15:56:15,549 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 15:56:15,549 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 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) [2021-07-05 15:56:15,549 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 15:56:15,549 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 15:56:15,573 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-07-05 15:56:15,759 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-07-05 15:56:15,759 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 15:56:15,761 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was SAFE (1/4) [2021-07-05 15:56:15,763 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATION ======== [2021-07-05 15:56:15,763 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 15:56:15,763 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 15:56:15,765 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-07-05 15:56:15,765 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 84 transitions, 183 flow [2021-07-05 15:56:15,765 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 84 transitions, 183 flow [2021-07-05 15:56:15,765 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 84 transitions, 183 flow [2021-07-05 15:56:15,787 INFO L129 PetriNetUnfolder]: 2/81 cut-off events. [2021-07-05 15:56:15,787 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-07-05 15:56:15,788 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 81 events. 2/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2021-07-05 15:56:15,789 INFO L116 LiptonReduction]: Number of co-enabled transitions 1348 [2021-07-05 15:56:18,327 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-07-05 15:56:18,478 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-07-05 15:56:18,647 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-07-05 15:56:18,814 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-07-05 15:56:18,817 INFO L131 LiptonReduction]: Checked pairs total: 2400 [2021-07-05 15:56:18,817 INFO L133 LiptonReduction]: Total number of compositions: 74 [2021-07-05 15:56:18,817 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2021-07-05 15:56:18,824 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 274 states, 272 states have (on average 3.0661764705882355) internal successors, (834), 273 states have internal predecessors, (834), 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) [2021-07-05 15:56:18,824 INFO L276 IsEmpty]: Start isEmpty. Operand has 274 states, 272 states have (on average 3.0661764705882355) internal successors, (834), 273 states have internal predecessors, (834), 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) [2021-07-05 15:56:18,849 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 15:56:18,849 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-07-05 15:56:18,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 15:56:18,850 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramCache.addRun(PathProgramCache.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.StrategyFactory.constructStrategy(StrategyFactory.java:135) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.StrategyFactory.constructStrategy(StrategyFactory.java:119) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.isCounterexampleFeasibleInternal(AbstractCegarLoop.java:488) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:382) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:298) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:221) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-07-05 15:56:18,857 INFO L168 Benchmark]: Toolchain (without parser) took 10141.80 ms. Allocated memory was 67.1 MB in the beginning and 209.7 MB in the end (delta: 142.6 MB). Free memory was 47.7 MB in the beginning and 124.3 MB in the end (delta: -76.5 MB). Peak memory consumption was 67.0 MB. Max. memory is 16.1 GB. [2021-07-05 15:56:18,857 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 67.1 MB. Free memory is still 48.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 15:56:18,857 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.06 ms. Allocated memory was 67.1 MB in the beginning and 98.6 MB in the end (delta: 31.5 MB). Free memory was 47.5 MB in the beginning and 58.3 MB in the end (delta: -10.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-07-05 15:56:18,858 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.28 ms. Allocated memory is still 98.6 MB. Free memory was 58.3 MB in the beginning and 56.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 15:56:18,858 INFO L168 Benchmark]: Boogie Preprocessor took 43.86 ms. Allocated memory is still 98.6 MB. Free memory was 56.1 MB in the beginning and 54.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 15:56:18,858 INFO L168 Benchmark]: RCFGBuilder took 280.02 ms. Allocated memory is still 98.6 MB. Free memory was 54.4 MB in the beginning and 60.7 MB in the end (delta: -6.3 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2021-07-05 15:56:18,858 INFO L168 Benchmark]: TraceAbstraction took 9322.73 ms. Allocated memory was 98.6 MB in the beginning and 209.7 MB in the end (delta: 111.1 MB). Free memory was 60.2 MB in the beginning and 124.3 MB in the end (delta: -64.1 MB). Peak memory consumption was 47.6 MB. Max. memory is 16.1 GB. [2021-07-05 15:56:18,858 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 67.1 MB. Free memory is still 48.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 438.06 ms. Allocated memory was 67.1 MB in the beginning and 98.6 MB in the end (delta: 31.5 MB). Free memory was 47.5 MB in the beginning and 58.3 MB in the end (delta: -10.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.28 ms. Allocated memory is still 98.6 MB. Free memory was 58.3 MB in the beginning and 56.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.86 ms. Allocated memory is still 98.6 MB. Free memory was 56.1 MB in the beginning and 54.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 280.02 ms. Allocated memory is still 98.6 MB. Free memory was 54.4 MB in the beginning and 60.7 MB in the end (delta: -6.3 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9322.73 ms. Allocated memory was 98.6 MB in the beginning and 209.7 MB in the end (delta: 111.1 MB). Free memory was 60.2 MB in the beginning and 124.3 MB in the end (delta: -64.1 MB). Peak memory consumption was 47.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3752.3ms, 92 PlacesBefore, 30 PlacesAfterwards, 84 TransitionsBefore, 20 TransitionsAfterwards, 1348 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 76 TotalNumberOfCompositions, 2395 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1405, positive: 1321, positive conditional: 0, positive unconditional: 1321, negative: 84, negative conditional: 0, negative unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 953, positive: 916, positive conditional: 0, positive unconditional: 916, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 953, positive: 910, positive conditional: 0, positive unconditional: 910, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 43, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 267, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 219, negative conditional: 0, negative unconditional: 219, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1405, positive: 405, positive conditional: 0, positive unconditional: 405, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 953, unknown conditional: 0, unknown unconditional: 953] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3051.6ms, 92 PlacesBefore, 31 PlacesAfterwards, 84 TransitionsBefore, 22 TransitionsAfterwards, 1348 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 74 TotalNumberOfCompositions, 2400 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1418, positive: 1339, positive conditional: 0, positive unconditional: 1339, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 908, positive: 879, positive conditional: 0, positive unconditional: 879, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 908, positive: 870, positive conditional: 0, positive unconditional: 870, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 38, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 192, positive: 66, positive conditional: 0, positive unconditional: 66, negative: 125, negative conditional: 0, negative unconditional: 125, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1418, positive: 460, positive conditional: 0, positive unconditional: 460, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 908, unknown conditional: 0, unknown unconditional: 908] , Statistics on independence cache: Total cache size (in pairs): 57, Positive cache size: 47, Positive conditional cache size: 0, Positive unconditional cache size: 47, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramCache.addRun(PathProgramCache.java:68) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-07-05 15:56:18,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...