./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 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/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash c3c8f5f42e93f38ff45b5fb218b90423c4fa8214795cc0db5e91266a2717c97b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 15:20:26,563 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 15:20:26,565 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 15:20:26,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 15:20:26,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 15:20:26,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 15:20:26,600 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 15:20:26,602 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 15:20:26,603 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 15:20:26,607 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 15:20:26,608 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 15:20:26,609 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 15:20:26,609 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 15:20:26,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 15:20:26,613 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 15:20:26,616 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 15:20:26,617 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 15:20:26,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 15:20:26,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 15:20:26,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 15:20:26,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 15:20:26,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 15:20:26,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 15:20:26,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 15:20:26,633 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 15:20:26,633 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 15:20:26,634 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 15:20:26,635 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 15:20:26,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 15:20:26,636 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 15:20:26,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 15:20:26,637 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 15:20:26,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 15:20:26,639 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 15:20:26,640 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 15:20:26,641 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 15:20:26,641 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 15:20:26,641 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 15:20:26,641 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 15:20:26,643 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 15:20:26,643 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 15:20:26,645 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 15:20:26,680 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 15:20:26,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 15:20:26,681 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 15:20:26,681 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 15:20:26,682 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 15:20:26,683 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 15:20:26,683 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 15:20:26,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 15:20:26,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 15:20:26,683 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 15:20:26,684 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 15:20:26,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 15:20:26,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 15:20:26,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 15:20:26,684 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 15:20:26,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 15:20:26,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 15:20:26,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 15:20:26,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 15:20:26,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 15:20:26,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 15:20:26,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 15:20:26,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 15:20:26,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 15:20:26,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 15:20:26,686 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 15:20:26,686 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 15:20:26,686 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 15:20:26,686 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 15:20:26,687 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3c8f5f42e93f38ff45b5fb218b90423c4fa8214795cc0db5e91266a2717c97b [2021-11-06 15:20:26,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 15:20:26,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 15:20:26,935 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 15:20:26,937 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 15:20:26,937 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 15:20:26,938 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2021-11-06 15:20:27,014 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8aa9ca0c2/efbfea78b6a34adf92861b388c451c4a/FLAGc95163c43 [2021-11-06 15:20:27,645 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 15:20:27,646 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2021-11-06 15:20:27,687 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8aa9ca0c2/efbfea78b6a34adf92861b388c451c4a/FLAGc95163c43 [2021-11-06 15:20:28,028 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8aa9ca0c2/efbfea78b6a34adf92861b388c451c4a [2021-11-06 15:20:28,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 15:20:28,046 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 15:20:28,048 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 15:20:28,048 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 15:20:28,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 15:20:28,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 03:20:28" (1/1) ... [2021-11-06 15:20:28,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6066c5ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:20:28, skipping insertion in model container [2021-11-06 15:20:28,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 03:20:28" (1/1) ... [2021-11-06 15:20:28,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 15:20:28,149 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 15:20:28,895 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i[98402,98415] [2021-11-06 15:20:29,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 15:20:29,590 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 15:20:29,716 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i[98402,98415] [2021-11-06 15:20:29,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 15:20:30,022 INFO L208 MainTranslator]: Completed translation [2021-11-06 15:20:30,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:20:30 WrapperNode [2021-11-06 15:20:30,023 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 15:20:30,025 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 15:20:30,025 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 15:20:30,026 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 15:20:30,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:20:30" (1/1) ... [2021-11-06 15:20:30,114 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:20:30" (1/1) ... [2021-11-06 15:20:30,364 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 15:20:30,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 15:20:30,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 15:20:30,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 15:20:30,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:20:30" (1/1) ... [2021-11-06 15:20:30,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:20:30" (1/1) ... [2021-11-06 15:20:30,421 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:20:30" (1/1) ... [2021-11-06 15:20:30,422 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:20:30" (1/1) ... [2021-11-06 15:20:30,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:20:30" (1/1) ... [2021-11-06 15:20:30,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:20:30" (1/1) ... [2021-11-06 15:20:30,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:20:30" (1/1) ... [2021-11-06 15:20:30,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 15:20:30,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 15:20:30,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 15:20:30,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 15:20:30,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:20:30" (1/1) ... [2021-11-06 15:20:30,774 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 15:20:30,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 15:20:30,803 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-06 15:20:30,849 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-06 15:20:30,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 15:20:30,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 15:20:30,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 15:20:30,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 15:20:30,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 15:20:30,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 15:20:30,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 15:20:30,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 15:20:30,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 15:20:30,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 15:20:30,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 15:20:30,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 15:20:30,852 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 15:20:30,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 15:20:30,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 15:20:30,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 15:20:30,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-06 15:21:00,335 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 15:21:00,335 INFO L299 CfgBuilder]: Removed 1746 assume(true) statements. [2021-11-06 15:21:00,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 03:21:00 BoogieIcfgContainer [2021-11-06 15:21:00,339 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 15:21:00,340 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 15:21:00,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 15:21:00,343 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 15:21:00,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 03:20:28" (1/3) ... [2021-11-06 15:21:00,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cc981bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 03:21:00, skipping insertion in model container [2021-11-06 15:21:00,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:20:30" (2/3) ... [2021-11-06 15:21:00,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cc981bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 03:21:00, skipping insertion in model container [2021-11-06 15:21:00,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 03:21:00" (3/3) ... [2021-11-06 15:21:00,346 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2021-11-06 15:21:00,350 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 15:21:00,350 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-11-06 15:21:00,388 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 15:21:00,393 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-06 15:21:00,393 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-11-06 15:21:00,432 INFO L276 IsEmpty]: Start isEmpty. Operand has 2043 states, 1971 states have (on average 1.4662607813292745) internal successors, (2890), 2042 states have internal predecessors, (2890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:00,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-06 15:21:00,437 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:21:00,437 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:21:00,438 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 15:21:00,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:21:00,441 INFO L85 PathProgramCache]: Analyzing trace with hash -196032821, now seen corresponding path program 1 times [2021-11-06 15:21:00,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:21:00,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903618193] [2021-11-06 15:21:00,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:21:00,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:21:00,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:21:01,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:21:01,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:21:01,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903618193] [2021-11-06 15:21:01,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903618193] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:21:01,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:21:01,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:21:01,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129464049] [2021-11-06 15:21:01,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:21:01,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:21:01,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:21:01,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:21:01,125 INFO L87 Difference]: Start difference. First operand has 2043 states, 1971 states have (on average 1.4662607813292745) internal successors, (2890), 2042 states have internal predecessors, (2890), 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, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:01,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:21:01,489 INFO L93 Difference]: Finished difference Result 5539 states and 7828 transitions. [2021-11-06 15:21:01,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:21:01,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 31 [2021-11-06 15:21:01,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:21:01,517 INFO L225 Difference]: With dead ends: 5539 [2021-11-06 15:21:01,518 INFO L226 Difference]: Without dead ends: 3480 [2021-11-06 15:21:01,527 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:21:01,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3480 states. [2021-11-06 15:21:01,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3480 to 3338. [2021-11-06 15:21:01,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3338 states, 3267 states have (on average 1.4074074074074074) internal successors, (4598), 3337 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:01,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3338 states to 3338 states and 4598 transitions. [2021-11-06 15:21:01,723 INFO L78 Accepts]: Start accepts. Automaton has 3338 states and 4598 transitions. Word has length 31 [2021-11-06 15:21:01,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:21:01,724 INFO L470 AbstractCegarLoop]: Abstraction has 3338 states and 4598 transitions. [2021-11-06 15:21:01,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:01,724 INFO L276 IsEmpty]: Start isEmpty. Operand 3338 states and 4598 transitions. [2021-11-06 15:21:01,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-06 15:21:01,726 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:21:01,727 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:21:01,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 15:21:01,727 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 15:21:01,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:21:01,730 INFO L85 PathProgramCache]: Analyzing trace with hash 713317064, now seen corresponding path program 1 times [2021-11-06 15:21:01,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:21:01,730 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890636391] [2021-11-06 15:21:01,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:21:01,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:21:01,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:21:02,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:21:02,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:21:02,047 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890636391] [2021-11-06 15:21:02,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890636391] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:21:02,048 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:21:02,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:21:02,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578241994] [2021-11-06 15:21:02,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:21:02,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:21:02,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:21:02,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:21:02,051 INFO L87 Difference]: Start difference. First operand 3338 states and 4598 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 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) [2021-11-06 15:21:02,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:21:02,312 INFO L93 Difference]: Finished difference Result 8430 states and 11658 transitions. [2021-11-06 15:21:02,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:21:02,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 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 32 [2021-11-06 15:21:02,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:21:02,329 INFO L225 Difference]: With dead ends: 8430 [2021-11-06 15:21:02,330 INFO L226 Difference]: Without dead ends: 5142 [2021-11-06 15:21:02,335 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:21:02,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5142 states. [2021-11-06 15:21:02,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5142 to 5038. [2021-11-06 15:21:02,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5038 states, 4967 states have (on average 1.4215824441312663) internal successors, (7061), 5037 states have internal predecessors, (7061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:02,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5038 states to 5038 states and 7061 transitions. [2021-11-06 15:21:02,443 INFO L78 Accepts]: Start accepts. Automaton has 5038 states and 7061 transitions. Word has length 32 [2021-11-06 15:21:02,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:21:02,444 INFO L470 AbstractCegarLoop]: Abstraction has 5038 states and 7061 transitions. [2021-11-06 15:21:02,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 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) [2021-11-06 15:21:02,444 INFO L276 IsEmpty]: Start isEmpty. Operand 5038 states and 7061 transitions. [2021-11-06 15:21:02,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-06 15:21:02,445 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:21:02,445 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:21:02,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 15:21:02,446 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr68ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 15:21:02,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:21:02,446 INFO L85 PathProgramCache]: Analyzing trace with hash -294363701, now seen corresponding path program 1 times [2021-11-06 15:21:02,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:21:02,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436249668] [2021-11-06 15:21:02,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:21:02,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:21:02,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:21:02,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:21:02,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:21:02,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436249668] [2021-11-06 15:21:02,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436249668] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:21:02,679 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:21:02,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:21:02,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358593965] [2021-11-06 15:21:02,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:21:02,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:21:02,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:21:02,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:21:02,680 INFO L87 Difference]: Start difference. First operand 5038 states and 7061 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:05,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:21:05,066 INFO L93 Difference]: Finished difference Result 14932 states and 20966 transitions. [2021-11-06 15:21:05,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:21:05,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 35 [2021-11-06 15:21:05,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:21:05,101 INFO L225 Difference]: With dead ends: 14932 [2021-11-06 15:21:05,101 INFO L226 Difference]: Without dead ends: 9944 [2021-11-06 15:21:05,113 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:21:05,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9944 states. [2021-11-06 15:21:05,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9944 to 9806. [2021-11-06 15:21:05,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9806 states, 9735 states have (on average 1.4260914227015922) internal successors, (13883), 9805 states have internal predecessors, (13883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:05,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9806 states to 9806 states and 13883 transitions. [2021-11-06 15:21:05,358 INFO L78 Accepts]: Start accepts. Automaton has 9806 states and 13883 transitions. Word has length 35 [2021-11-06 15:21:05,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:21:05,359 INFO L470 AbstractCegarLoop]: Abstraction has 9806 states and 13883 transitions. [2021-11-06 15:21:05,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:05,360 INFO L276 IsEmpty]: Start isEmpty. Operand 9806 states and 13883 transitions. [2021-11-06 15:21:05,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-06 15:21:05,365 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:21:05,365 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:21:05,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 15:21:05,366 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 15:21:05,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:21:05,366 INFO L85 PathProgramCache]: Analyzing trace with hash -80370529, now seen corresponding path program 1 times [2021-11-06 15:21:05,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:21:05,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37469992] [2021-11-06 15:21:05,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:21:05,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:21:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:21:05,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:21:05,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:21:05,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37469992] [2021-11-06 15:21:05,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37469992] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:21:05,672 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:21:05,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:21:05,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904132223] [2021-11-06 15:21:05,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:21:05,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:21:05,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:21:05,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:21:05,673 INFO L87 Difference]: Start difference. First operand 9806 states and 13883 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:06,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:21:06,156 INFO L93 Difference]: Finished difference Result 26909 states and 38135 transitions. [2021-11-06 15:21:06,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:21:06,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 37 [2021-11-06 15:21:06,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:21:06,219 INFO L225 Difference]: With dead ends: 26909 [2021-11-06 15:21:06,219 INFO L226 Difference]: Without dead ends: 17153 [2021-11-06 15:21:06,238 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:21:06,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17153 states. [2021-11-06 15:21:06,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17153 to 17036. [2021-11-06 15:21:06,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17036 states, 16965 states have (on average 1.4288829944002357) internal successors, (24241), 17035 states have internal predecessors, (24241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:06,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17036 states to 17036 states and 24241 transitions. [2021-11-06 15:21:06,648 INFO L78 Accepts]: Start accepts. Automaton has 17036 states and 24241 transitions. Word has length 37 [2021-11-06 15:21:06,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:21:06,649 INFO L470 AbstractCegarLoop]: Abstraction has 17036 states and 24241 transitions. [2021-11-06 15:21:06,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:06,649 INFO L276 IsEmpty]: Start isEmpty. Operand 17036 states and 24241 transitions. [2021-11-06 15:21:06,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-06 15:21:06,650 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:21:06,650 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:21:06,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 15:21:06,650 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 15:21:06,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:21:06,651 INFO L85 PathProgramCache]: Analyzing trace with hash -315993567, now seen corresponding path program 1 times [2021-11-06 15:21:06,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:21:06,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067124450] [2021-11-06 15:21:06,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:21:06,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:21:06,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:21:06,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:21:06,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:21:06,916 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067124450] [2021-11-06 15:21:06,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067124450] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:21:06,916 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:21:06,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:21:06,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253305988] [2021-11-06 15:21:06,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:21:06,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:21:06,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:21:06,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:21:06,918 INFO L87 Difference]: Start difference. First operand 17036 states and 24241 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:07,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:21:07,543 INFO L93 Difference]: Finished difference Result 48495 states and 68924 transitions. [2021-11-06 15:21:07,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:21:07,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 38 [2021-11-06 15:21:07,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:21:07,624 INFO L225 Difference]: With dead ends: 48495 [2021-11-06 15:21:07,624 INFO L226 Difference]: Without dead ends: 31509 [2021-11-06 15:21:07,652 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:21:07,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31509 states. [2021-11-06 15:21:08,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31509 to 31352. [2021-11-06 15:21:08,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31352 states, 31281 states have (on average 1.4267127010006073) internal successors, (44629), 31351 states have internal predecessors, (44629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:08,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31352 states to 31352 states and 44629 transitions. [2021-11-06 15:21:08,310 INFO L78 Accepts]: Start accepts. Automaton has 31352 states and 44629 transitions. Word has length 38 [2021-11-06 15:21:08,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:21:08,311 INFO L470 AbstractCegarLoop]: Abstraction has 31352 states and 44629 transitions. [2021-11-06 15:21:08,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:08,311 INFO L276 IsEmpty]: Start isEmpty. Operand 31352 states and 44629 transitions. [2021-11-06 15:21:08,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-06 15:21:08,311 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:21:08,312 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:21:08,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 15:21:08,312 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 15:21:08,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:21:08,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1468083286, now seen corresponding path program 1 times [2021-11-06 15:21:08,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:21:08,313 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587171992] [2021-11-06 15:21:08,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:21:08,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:21:08,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:21:08,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:21:08,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:21:08,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587171992] [2021-11-06 15:21:08,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587171992] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:21:08,569 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:21:08,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:21:08,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964269010] [2021-11-06 15:21:08,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:21:08,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:21:08,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:21:08,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:21:08,570 INFO L87 Difference]: Start difference. First operand 31352 states and 44629 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:09,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:21:09,466 INFO L93 Difference]: Finished difference Result 89720 states and 127707 transitions. [2021-11-06 15:21:09,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:21:09,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 39 [2021-11-06 15:21:09,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:21:09,658 INFO L225 Difference]: With dead ends: 89720 [2021-11-06 15:21:09,658 INFO L226 Difference]: Without dead ends: 58418 [2021-11-06 15:21:09,718 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:21:09,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58418 states. [2021-11-06 15:21:11,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58418 to 58272. [2021-11-06 15:21:11,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58272 states, 58201 states have (on average 1.426453153725881) internal successors, (83021), 58271 states have internal predecessors, (83021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:11,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58272 states to 58272 states and 83021 transitions. [2021-11-06 15:21:11,470 INFO L78 Accepts]: Start accepts. Automaton has 58272 states and 83021 transitions. Word has length 39 [2021-11-06 15:21:11,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:21:11,471 INFO L470 AbstractCegarLoop]: Abstraction has 58272 states and 83021 transitions. [2021-11-06 15:21:11,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:11,471 INFO L276 IsEmpty]: Start isEmpty. Operand 58272 states and 83021 transitions. [2021-11-06 15:21:11,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-06 15:21:11,471 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:21:11,472 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:21:11,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 15:21:11,472 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr68ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 15:21:11,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:21:11,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1492464629, now seen corresponding path program 1 times [2021-11-06 15:21:11,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:21:11,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588147270] [2021-11-06 15:21:11,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:21:11,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:21:11,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:21:11,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:21:11,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:21:11,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588147270] [2021-11-06 15:21:11,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588147270] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:21:11,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:21:11,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 15:21:11,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684344352] [2021-11-06 15:21:11,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 15:21:11,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:21:11,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 15:21:11,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:21:11,933 INFO L87 Difference]: Start difference. First operand 58272 states and 83021 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:13,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:21:13,319 INFO L93 Difference]: Finished difference Result 116802 states and 166367 transitions. [2021-11-06 15:21:13,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 15:21:13,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-06 15:21:13,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:21:13,587 INFO L225 Difference]: With dead ends: 116802 [2021-11-06 15:21:13,588 INFO L226 Difference]: Without dead ends: 58580 [2021-11-06 15:21:13,661 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-06 15:21:13,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58580 states. [2021-11-06 15:21:14,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58580 to 29198. [2021-11-06 15:21:14,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29198 states, 29127 states have (on average 1.4274384591616027) internal successors, (41577), 29197 states have internal predecessors, (41577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:14,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29198 states to 29198 states and 41577 transitions. [2021-11-06 15:21:14,460 INFO L78 Accepts]: Start accepts. Automaton has 29198 states and 41577 transitions. Word has length 44 [2021-11-06 15:21:14,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:21:14,461 INFO L470 AbstractCegarLoop]: Abstraction has 29198 states and 41577 transitions. [2021-11-06 15:21:14,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:14,461 INFO L276 IsEmpty]: Start isEmpty. Operand 29198 states and 41577 transitions. [2021-11-06 15:21:14,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-06 15:21:14,463 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:21:14,463 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:21:14,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 15:21:14,464 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr68ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 15:21:14,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:21:14,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1549722931, now seen corresponding path program 1 times [2021-11-06 15:21:14,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:21:14,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555155609] [2021-11-06 15:21:14,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:21:14,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:21:14,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:21:14,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:21:14,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:21:14,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555155609] [2021-11-06 15:21:14,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555155609] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:21:14,801 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:21:14,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:21:14,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317846523] [2021-11-06 15:21:14,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:21:14,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:21:14,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:21:14,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:21:14,802 INFO L87 Difference]: Start difference. First operand 29198 states and 41577 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:17,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:21:17,500 INFO L93 Difference]: Finished difference Result 29198 states and 41577 transitions. [2021-11-06 15:21:17,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:21:17,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-06 15:21:17,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:21:17,556 INFO L225 Difference]: With dead ends: 29198 [2021-11-06 15:21:17,556 INFO L226 Difference]: Without dead ends: 29186 [2021-11-06 15:21:17,568 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:21:17,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29186 states. [2021-11-06 15:21:18,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29186 to 29186. [2021-11-06 15:21:18,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29186 states, 29121 states have (on average 1.4247450293602555) internal successors, (41490), 29185 states have internal predecessors, (41490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:18,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29186 states to 29186 states and 41490 transitions. [2021-11-06 15:21:18,287 INFO L78 Accepts]: Start accepts. Automaton has 29186 states and 41490 transitions. Word has length 44 [2021-11-06 15:21:18,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:21:18,288 INFO L470 AbstractCegarLoop]: Abstraction has 29186 states and 41490 transitions. [2021-11-06 15:21:18,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:18,288 INFO L276 IsEmpty]: Start isEmpty. Operand 29186 states and 41490 transitions. [2021-11-06 15:21:18,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-06 15:21:18,288 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:21:18,289 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:21:18,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-06 15:21:18,289 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr69ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 15:21:18,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:21:18,290 INFO L85 PathProgramCache]: Analyzing trace with hash -796765436, now seen corresponding path program 1 times [2021-11-06 15:21:18,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:21:18,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883631543] [2021-11-06 15:21:18,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:21:18,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:21:18,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:21:18,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:21:18,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:21:18,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883631543] [2021-11-06 15:21:18,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883631543] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:21:18,508 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:21:18,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:21:18,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365673865] [2021-11-06 15:21:18,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:21:18,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:21:18,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:21:18,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:21:18,510 INFO L87 Difference]: Start difference. First operand 29186 states and 41490 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:22,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:21:22,221 INFO L93 Difference]: Finished difference Result 63913 states and 90902 transitions. [2021-11-06 15:21:22,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:21:22,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 45 [2021-11-06 15:21:22,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:21:22,284 INFO L225 Difference]: With dead ends: 63913 [2021-11-06 15:21:22,284 INFO L226 Difference]: Without dead ends: 34806 [2021-11-06 15:21:22,315 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:21:22,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34806 states. [2021-11-06 15:21:23,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34806 to 34468. [2021-11-06 15:21:23,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34468 states, 34413 states have (on average 1.4125475837619503) internal successors, (48610), 34467 states have internal predecessors, (48610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:23,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34468 states to 34468 states and 48610 transitions. [2021-11-06 15:21:23,180 INFO L78 Accepts]: Start accepts. Automaton has 34468 states and 48610 transitions. Word has length 45 [2021-11-06 15:21:23,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:21:23,180 INFO L470 AbstractCegarLoop]: Abstraction has 34468 states and 48610 transitions. [2021-11-06 15:21:23,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:23,180 INFO L276 IsEmpty]: Start isEmpty. Operand 34468 states and 48610 transitions. [2021-11-06 15:21:23,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-06 15:21:23,181 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:21:23,181 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:21:23,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-06 15:21:23,181 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr70ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 15:21:23,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:21:23,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1070080439, now seen corresponding path program 1 times [2021-11-06 15:21:23,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:21:23,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016031930] [2021-11-06 15:21:23,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:21:23,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:21:23,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:21:23,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:21:23,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:21:23,405 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016031930] [2021-11-06 15:21:23,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016031930] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:21:23,405 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:21:23,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:21:23,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950089867] [2021-11-06 15:21:23,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:21:23,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:21:23,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:21:23,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:21:23,406 INFO L87 Difference]: Start difference. First operand 34468 states and 48610 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:26,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:21:26,123 INFO L93 Difference]: Finished difference Result 34468 states and 48610 transitions. [2021-11-06 15:21:26,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:21:26,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 46 [2021-11-06 15:21:26,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:21:26,362 INFO L225 Difference]: With dead ends: 34468 [2021-11-06 15:21:26,362 INFO L226 Difference]: Without dead ends: 34461 [2021-11-06 15:21:26,373 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:21:26,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34461 states. [2021-11-06 15:21:27,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34461 to 34458. [2021-11-06 15:21:27,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34458 states, 34404 states have (on average 1.4116672479944192) internal successors, (48567), 34457 states have internal predecessors, (48567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:27,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34458 states to 34458 states and 48567 transitions. [2021-11-06 15:21:27,276 INFO L78 Accepts]: Start accepts. Automaton has 34458 states and 48567 transitions. Word has length 46 [2021-11-06 15:21:27,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:21:27,276 INFO L470 AbstractCegarLoop]: Abstraction has 34458 states and 48567 transitions. [2021-11-06 15:21:27,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:27,276 INFO L276 IsEmpty]: Start isEmpty. Operand 34458 states and 48567 transitions. [2021-11-06 15:21:27,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-06 15:21:27,279 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:21:27,279 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:21:27,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-06 15:21:27,279 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 15:21:27,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:21:27,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1521084131, now seen corresponding path program 1 times [2021-11-06 15:21:27,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:21:27,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889787804] [2021-11-06 15:21:27,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:21:27,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:21:27,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:21:27,551 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-06 15:21:27,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:21:27,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889787804] [2021-11-06 15:21:27,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889787804] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:21:27,551 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:21:27,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:21:27,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273331015] [2021-11-06 15:21:27,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:21:27,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:21:27,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:21:27,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:21:27,552 INFO L87 Difference]: Start difference. First operand 34458 states and 48567 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:31,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:21:31,070 INFO L93 Difference]: Finished difference Result 68785 states and 97008 transitions. [2021-11-06 15:21:31,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:21:31,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 76 [2021-11-06 15:21:31,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:21:31,135 INFO L225 Difference]: With dead ends: 68785 [2021-11-06 15:21:31,135 INFO L226 Difference]: Without dead ends: 34406 [2021-11-06 15:21:31,182 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:21:31,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34406 states. [2021-11-06 15:21:31,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34406 to 33815. [2021-11-06 15:21:32,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33815 states, 33790 states have (on average 1.3964782480023676) internal successors, (47187), 33814 states have internal predecessors, (47187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:32,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33815 states to 33815 states and 47187 transitions. [2021-11-06 15:21:32,214 INFO L78 Accepts]: Start accepts. Automaton has 33815 states and 47187 transitions. Word has length 76 [2021-11-06 15:21:32,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:21:32,215 INFO L470 AbstractCegarLoop]: Abstraction has 33815 states and 47187 transitions. [2021-11-06 15:21:32,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:32,215 INFO L276 IsEmpty]: Start isEmpty. Operand 33815 states and 47187 transitions. [2021-11-06 15:21:32,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-06 15:21:32,220 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:21:32,220 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:21:32,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-06 15:21:32,221 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 15:21:32,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:21:32,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1545134786, now seen corresponding path program 1 times [2021-11-06 15:21:32,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:21:32,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505265688] [2021-11-06 15:21:32,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:21:32,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:21:32,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:21:32,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-06 15:21:32,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:21:32,497 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505265688] [2021-11-06 15:21:32,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505265688] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:21:32,498 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:21:32,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:21:32,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441635380] [2021-11-06 15:21:32,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:21:32,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:21:32,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:21:32,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:21:32,498 INFO L87 Difference]: Start difference. First operand 33815 states and 47187 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:35,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:21:35,324 INFO L93 Difference]: Finished difference Result 33815 states and 47187 transitions. [2021-11-06 15:21:35,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:21:35,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 82 [2021-11-06 15:21:35,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:21:35,383 INFO L225 Difference]: With dead ends: 33815 [2021-11-06 15:21:35,384 INFO L226 Difference]: Without dead ends: 33803 [2021-11-06 15:21:35,395 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:21:35,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33803 states. [2021-11-06 15:21:36,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33803 to 33803. [2021-11-06 15:21:36,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33803 states, 33784 states have (on average 1.3922862893677481) internal successors, (47037), 33802 states have internal predecessors, (47037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:36,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33803 states to 33803 states and 47037 transitions. [2021-11-06 15:21:36,208 INFO L78 Accepts]: Start accepts. Automaton has 33803 states and 47037 transitions. Word has length 82 [2021-11-06 15:21:36,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:21:36,208 INFO L470 AbstractCegarLoop]: Abstraction has 33803 states and 47037 transitions. [2021-11-06 15:21:36,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:36,208 INFO L276 IsEmpty]: Start isEmpty. Operand 33803 states and 47037 transitions. [2021-11-06 15:21:36,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-06 15:21:36,226 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:21:36,226 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:21:36,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-06 15:21:36,227 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 15:21:36,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:21:36,227 INFO L85 PathProgramCache]: Analyzing trace with hash -125920046, now seen corresponding path program 1 times [2021-11-06 15:21:36,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:21:36,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402977731] [2021-11-06 15:21:36,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:21:36,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:21:36,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:21:36,819 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 15:21:36,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:21:36,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402977731] [2021-11-06 15:21:36,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402977731] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:21:36,819 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:21:36,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 15:21:36,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101011708] [2021-11-06 15:21:36,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 15:21:36,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:21:36,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 15:21:36,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 15:21:36,820 INFO L87 Difference]: Start difference. First operand 33803 states and 47037 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:39,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:21:39,415 INFO L93 Difference]: Finished difference Result 124505 states and 173470 transitions. [2021-11-06 15:21:39,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 15:21:39,419 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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 99 [2021-11-06 15:21:39,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:21:39,599 INFO L225 Difference]: With dead ends: 124505 [2021-11-06 15:21:39,599 INFO L226 Difference]: Without dead ends: 90781 [2021-11-06 15:21:39,656 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:21:39,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90781 states. [2021-11-06 15:21:41,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90781 to 33835. [2021-11-06 15:21:41,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33835 states, 33816 states have (on average 1.3914419209841495) internal successors, (47053), 33834 states have internal predecessors, (47053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:41,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33835 states to 33835 states and 47053 transitions. [2021-11-06 15:21:41,210 INFO L78 Accepts]: Start accepts. Automaton has 33835 states and 47053 transitions. Word has length 99 [2021-11-06 15:21:41,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:21:41,210 INFO L470 AbstractCegarLoop]: Abstraction has 33835 states and 47053 transitions. [2021-11-06 15:21:41,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:41,211 INFO L276 IsEmpty]: Start isEmpty. Operand 33835 states and 47053 transitions. [2021-11-06 15:21:41,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-06 15:21:41,229 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:21:41,229 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:21:41,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-06 15:21:41,229 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 15:21:41,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:21:41,230 INFO L85 PathProgramCache]: Analyzing trace with hash -398804520, now seen corresponding path program 1 times [2021-11-06 15:21:41,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:21:41,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126791623] [2021-11-06 15:21:41,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:21:41,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:21:41,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:21:41,480 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 15:21:41,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:21:41,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126791623] [2021-11-06 15:21:41,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126791623] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:21:41,480 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:21:41,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:21:41,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660361511] [2021-11-06 15:21:41,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:21:41,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:21:41,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:21:41,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:21:41,481 INFO L87 Difference]: Start difference. First operand 33835 states and 47053 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:43,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:21:43,408 INFO L93 Difference]: Finished difference Result 94179 states and 131225 transitions. [2021-11-06 15:21:43,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:21:43,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 101 [2021-11-06 15:21:43,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:21:43,523 INFO L225 Difference]: With dead ends: 94179 [2021-11-06 15:21:43,524 INFO L226 Difference]: Without dead ends: 60423 [2021-11-06 15:21:43,564 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:21:43,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60423 states. [2021-11-06 15:21:44,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60423 to 33867. [2021-11-06 15:21:44,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33867 states, 33848 states have (on average 1.3910423067832665) internal successors, (47084), 33866 states have internal predecessors, (47084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:44,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33867 states to 33867 states and 47084 transitions. [2021-11-06 15:21:44,871 INFO L78 Accepts]: Start accepts. Automaton has 33867 states and 47084 transitions. Word has length 101 [2021-11-06 15:21:44,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:21:44,871 INFO L470 AbstractCegarLoop]: Abstraction has 33867 states and 47084 transitions. [2021-11-06 15:21:44,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:44,872 INFO L276 IsEmpty]: Start isEmpty. Operand 33867 states and 47084 transitions. [2021-11-06 15:21:44,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-06 15:21:44,894 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:21:44,894 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:21:44,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-06 15:21:44,896 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 15:21:44,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:21:44,897 INFO L85 PathProgramCache]: Analyzing trace with hash -2062124512, now seen corresponding path program 1 times [2021-11-06 15:21:44,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:21:44,897 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749368819] [2021-11-06 15:21:44,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:21:44,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:21:45,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:21:45,413 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 15:21:45,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:21:45,413 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749368819] [2021-11-06 15:21:45,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749368819] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:21:45,413 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:21:45,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 15:21:45,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281900696] [2021-11-06 15:21:45,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 15:21:45,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:21:45,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 15:21:45,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 15:21:45,414 INFO L87 Difference]: Start difference. First operand 33867 states and 47084 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:48,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:21:48,638 INFO L93 Difference]: Finished difference Result 121784 states and 169484 transitions. [2021-11-06 15:21:48,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 15:21:48,642 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-11-06 15:21:48,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:21:48,811 INFO L225 Difference]: With dead ends: 121784 [2021-11-06 15:21:48,811 INFO L226 Difference]: Without dead ends: 87996 [2021-11-06 15:21:48,873 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:21:48,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87996 states. [2021-11-06 15:21:50,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87996 to 33876. [2021-11-06 15:21:50,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33876 states, 33858 states have (on average 1.3902179691653376) internal successors, (47070), 33875 states have internal predecessors, (47070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:50,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33876 states to 33876 states and 47070 transitions. [2021-11-06 15:21:50,668 INFO L78 Accepts]: Start accepts. Automaton has 33876 states and 47070 transitions. Word has length 105 [2021-11-06 15:21:50,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:21:50,668 INFO L470 AbstractCegarLoop]: Abstraction has 33876 states and 47070 transitions. [2021-11-06 15:21:50,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:21:50,669 INFO L276 IsEmpty]: Start isEmpty. Operand 33876 states and 47070 transitions. [2021-11-06 15:21:50,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-06 15:21:50,706 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:21:50,706 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:21:50,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-06 15:21:50,706 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 15:21:50,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:21:50,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1971870911, now seen corresponding path program 1 times [2021-11-06 15:21:50,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:21:50,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498233759] [2021-11-06 15:21:50,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:21:50,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:21:51,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:21:51,496 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 15:21:51,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:21:51,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498233759] [2021-11-06 15:21:51,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498233759] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:21:51,497 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:21:51,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 15:21:51,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876039059] [2021-11-06 15:21:51,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 15:21:51,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:21:51,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 15:21:51,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:21:51,498 INFO L87 Difference]: Start difference. First operand 33876 states and 47070 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:22:02,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:22:02,820 INFO L93 Difference]: Finished difference Result 283111 states and 394956 transitions. [2021-11-06 15:22:02,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-06 15:22:02,820 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 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 141 [2021-11-06 15:22:02,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:22:03,610 INFO L225 Difference]: With dead ends: 283111 [2021-11-06 15:22:03,610 INFO L226 Difference]: Without dead ends: 249314 [2021-11-06 15:22:03,698 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-06 15:22:03,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249314 states.