/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 22:40:52,723 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 22:40:52,726 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 22:40:52,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 22:40:52,751 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 22:40:52,752 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 22:40:52,753 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 22:40:52,755 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 22:40:52,757 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 22:40:52,757 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 22:40:52,758 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 22:40:52,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 22:40:52,760 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 22:40:52,761 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 22:40:52,762 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 22:40:52,763 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 22:40:52,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 22:40:52,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 22:40:52,766 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 22:40:52,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 22:40:52,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 22:40:52,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 22:40:52,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 22:40:52,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 22:40:52,775 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 22:40:52,776 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 22:40:52,776 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 22:40:52,777 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 22:40:52,777 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 22:40:52,778 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 22:40:52,778 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 22:40:52,779 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 22:40:52,780 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 22:40:52,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 22:40:52,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 22:40:52,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 22:40:52,782 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 22:40:52,783 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 22:40:52,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 22:40:52,784 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 22:40:52,784 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 22:40:52,785 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-12 22:40:52,812 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 22:40:52,812 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 22:40:52,813 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 22:40:52,813 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 22:40:52,813 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 22:40:52,814 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 22:40:52,814 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 22:40:52,814 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 22:40:52,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 22:40:52,815 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 22:40:52,815 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 22:40:52,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 22:40:52,815 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 22:40:52,815 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 22:40:52,816 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 22:40:52,816 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 22:40:52,816 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 22:40:52,816 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 22:40:52,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 22:40:52,817 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 22:40:52,817 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 22:40:52,817 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 22:40:52,817 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 22:40:52,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 22:40:52,818 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 22:40:52,818 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 22:40:52,818 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-12 22:40:52,818 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 22:40:53,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 22:40:53,164 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 22:40:53,170 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 22:40:53,171 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 22:40:53,172 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 22:40:53,172 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2020-10-12 22:40:53,244 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c428a0ba8/85bb6a90b2fc46958641587faaa0615a/FLAG4b432eb8a [2020-10-12 22:40:53,967 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 22:40:53,968 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2020-10-12 22:40:54,005 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c428a0ba8/85bb6a90b2fc46958641587faaa0615a/FLAG4b432eb8a [2020-10-12 22:40:54,053 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c428a0ba8/85bb6a90b2fc46958641587faaa0615a [2020-10-12 22:40:54,061 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 22:40:54,062 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 22:40:54,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 22:40:54,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 22:40:54,069 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 22:40:54,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:40:54" (1/1) ... [2020-10-12 22:40:54,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5482d00f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:40:54, skipping insertion in model container [2020-10-12 22:40:54,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:40:54" (1/1) ... [2020-10-12 22:40:54,081 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 22:40:54,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 22:40:55,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 22:40:55,514 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 22:40:55,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 22:40:56,190 INFO L208 MainTranslator]: Completed translation [2020-10-12 22:40:56,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:40:56 WrapperNode [2020-10-12 22:40:56,192 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 22:40:56,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 22:40:56,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 22:40:56,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 22:40:56,208 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:40:56" (1/1) ... [2020-10-12 22:40:56,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:40:56" (1/1) ... [2020-10-12 22:40:56,317 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:40:56" (1/1) ... [2020-10-12 22:40:56,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:40:56" (1/1) ... [2020-10-12 22:40:56,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:40:56" (1/1) ... [2020-10-12 22:40:56,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:40:56" (1/1) ... [2020-10-12 22:40:56,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:40:56" (1/1) ... [2020-10-12 22:40:56,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 22:40:56,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 22:40:56,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 22:40:56,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 22:40:56,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:40:56" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 22:40:56,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 22:40:56,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 22:40:56,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2020-10-12 22:40:56,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~int [2020-10-12 22:40:56,573 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-12 22:40:56,573 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-12 22:40:56,573 INFO L138 BoogieDeclarations]: Found implementation of procedure get_capacity [2020-10-12 22:40:56,573 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2020-10-12 22:40:56,574 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_cur_bytes [2020-10-12 22:40:56,574 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2020-10-12 22:40:56,574 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_bytes [2020-10-12 22:40:56,574 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_cur_bytes [2020-10-12 22:40:56,574 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_sectors [2020-10-12 22:40:56,574 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_cur_sectors [2020-10-12 22:40:56,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ps_set_intr [2020-10-12 22:40:56,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ps_tq_int [2020-10-12 22:40:56,575 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_init_units [2020-10-12 22:40:56,575 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_open [2020-10-12 22:40:56,575 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_getgeo [2020-10-12 22:40:56,578 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_ioctl [2020-10-12 22:40:56,579 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_release [2020-10-12 22:40:56,579 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_check_events [2020-10-12 22:40:56,579 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2020-10-12 22:40:56,579 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2020-10-12 22:40:56,580 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2020-10-12 22:40:56,580 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_wait [2020-10-12 22:40:56,580 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_command [2020-10-12 22:40:56,580 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_completion [2020-10-12 22:40:56,580 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_req_sense [2020-10-12 22:40:56,580 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_atapi [2020-10-12 22:40:56,581 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_lock [2020-10-12 22:40:56,581 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_eject [2020-10-12 22:40:56,581 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_sleep [2020-10-12 22:40:56,581 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_reset [2020-10-12 22:40:56,581 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_mode_sense [2020-10-12 22:40:56,581 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2020-10-12 22:40:56,582 INFO L138 BoogieDeclarations]: Found implementation of procedure xl [2020-10-12 22:40:56,582 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_get_capacity [2020-10-12 22:40:56,582 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_identify [2020-10-12 22:40:56,582 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_probe [2020-10-12 22:40:56,582 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_detect [2020-10-12 22:40:56,583 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_start [2020-10-12 22:40:56,583 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_ready [2020-10-12 22:40:56,583 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_end_request [2020-10-12 22:40:56,583 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pf_request [2020-10-12 22:40:56,583 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_next_buf [2020-10-12 22:40:56,584 INFO L138 BoogieDeclarations]: Found implementation of procedure next_request [2020-10-12 22:40:56,584 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pf_read [2020-10-12 22:40:56,584 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pf_read_start [2020-10-12 22:40:56,584 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pf_read_drq [2020-10-12 22:40:56,584 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pf_write [2020-10-12 22:40:56,585 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pf_write_start [2020-10-12 22:40:56,585 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pf_write_done [2020-10-12 22:40:56,585 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_init [2020-10-12 22:40:56,585 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_exit [2020-10-12 22:40:56,586 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 22:40:56,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2020-10-12 22:40:56,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2020-10-12 22:40:56,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2020-10-12 22:40:56,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_4 [2020-10-12 22:40:56,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2020-10-12 22:40:56,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_6 [2020-10-12 22:40:56,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2020-10-12 22:40:56,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2020-10-12 22:40:56,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2020-10-12 22:40:56,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_10 [2020-10-12 22:40:56,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2020-10-12 22:40:56,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_12 [2020-10-12 22:40:56,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2020-10-12 22:40:56,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_14 [2020-10-12 22:40:56,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-12 22:40:56,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-12 22:40:56,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-12 22:40:56,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-12 22:40:56,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-12 22:40:56,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-12 22:40:56,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-12 22:40:56,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-12 22:40:56,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-12 22:40:56,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-12 22:40:56,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-10-12 22:40:56,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-10-12 22:40:56,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-10-12 22:40:56,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-10-12 22:40:56,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-12 22:40:56,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-10-12 22:40:56,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-10-12 22:40:56,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-12 22:40:56,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-12 22:40:56,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-10-12 22:40:56,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-10-12 22:40:56,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-12 22:40:56,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-12 22:40:56,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-10-12 22:40:56,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_pf_mutex [2020-10-12 22:40:56,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_pf_mutex [2020-10-12 22:40:56,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pf_mutex [2020-10-12 22:40:56,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_pf_mutex [2020-10-12 22:40:56,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_pf_mutex [2020-10-12 22:40:56,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_pf_mutex [2020-10-12 22:40:56,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pf_mutex [2020-10-12 22:40:56,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-12 22:40:56,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-12 22:40:56,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_cur [2020-10-12 22:40:56,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-10-12 22:40:56,595 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2020-10-12 22:40:56,596 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-12 22:40:56,596 INFO L138 BoogieDeclarations]: Found implementation of procedure add_disk [2020-10-12 22:40:56,596 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2020-10-12 22:40:56,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-12 22:40:56,596 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_fetch_request [2020-10-12 22:40:56,596 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_init_queue [2020-10-12 22:40:56,596 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segments [2020-10-12 22:40:56,597 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2020-10-12 22:40:56,597 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-12 22:40:56,597 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-10-12 22:40:56,597 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-12 22:40:56,597 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2020-10-12 22:40:56,597 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2020-10-12 22:40:56,597 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_do_claimed [2020-10-12 22:40:56,598 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2020-10-12 22:40:56,598 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2020-10-12 22:40:56,598 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2020-10-12 22:40:56,598 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2020-10-12 22:40:56,598 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2020-10-12 22:40:56,598 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_regr [2020-10-12 22:40:56,599 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-12 22:40:56,599 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2020-10-12 22:40:56,599 INFO L138 BoogieDeclarations]: Found implementation of procedure register_blkdev [2020-10-12 22:40:56,599 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2020-10-12 22:40:56,599 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2020-10-12 22:40:56,599 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2020-10-12 22:40:56,599 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-12 22:40:56,600 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2020-10-12 22:40:56,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 22:40:56,600 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-12 22:40:56,600 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-12 22:40:56,600 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2020-10-12 22:40:56,601 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-10-12 22:40:56,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_6 [2020-10-12 22:40:56,601 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-12 22:40:56,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2020-10-12 22:40:56,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_4 [2020-10-12 22:40:56,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2020-10-12 22:40:56,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2020-10-12 22:40:56,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2020-10-12 22:40:56,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2020-10-12 22:40:56,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_14 [2020-10-12 22:40:56,602 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-12 22:40:56,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2020-10-12 22:40:56,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2020-10-12 22:40:56,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2020-10-12 22:40:56,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2020-10-12 22:40:56,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_10 [2020-10-12 22:40:56,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_12 [2020-10-12 22:40:56,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-12 22:40:56,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-12 22:40:56,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-10-12 22:40:56,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-10-12 22:40:56,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-10-12 22:40:56,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-10-12 22:40:56,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-10-12 22:40:56,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pf_mutex [2020-10-12 22:40:56,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pf_mutex [2020-10-12 22:40:56,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 22:40:56,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 22:40:56,604 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2020-10-12 22:40:56,605 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-12 22:40:56,605 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-12 22:40:56,605 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-12 22:40:56,605 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2020-10-12 22:40:56,605 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2020-10-12 22:40:56,605 INFO L130 BoogieDeclarations]: Found specification of procedure register_blkdev [2020-10-12 22:40:56,605 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2020-10-12 22:40:56,605 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-10-12 22:40:56,606 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2020-10-12 22:40:56,606 INFO L130 BoogieDeclarations]: Found specification of procedure add_disk [2020-10-12 22:40:56,606 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2020-10-12 22:40:56,606 INFO L130 BoogieDeclarations]: Found specification of procedure get_capacity [2020-10-12 22:40:56,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 22:40:56,606 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2020-10-12 22:40:56,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 22:40:56,607 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_disk [2020-10-12 22:40:56,607 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2020-10-12 22:40:56,607 INFO L130 BoogieDeclarations]: Found specification of procedure bio_cur_bytes [2020-10-12 22:40:56,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-12 22:40:56,607 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2020-10-12 22:40:56,607 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_bytes [2020-10-12 22:40:56,607 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_cur_bytes [2020-10-12 22:40:56,608 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_sectors [2020-10-12 22:40:56,608 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_cur_sectors [2020-10-12 22:40:56,608 INFO L130 BoogieDeclarations]: Found specification of procedure blk_fetch_request [2020-10-12 22:40:56,608 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_cur [2020-10-12 22:40:56,608 INFO L130 BoogieDeclarations]: Found specification of procedure blk_init_queue [2020-10-12 22:40:56,608 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2020-10-12 22:40:56,608 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segments [2020-10-12 22:40:56,608 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2020-10-12 22:40:56,608 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2020-10-12 22:40:56,608 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_regr [2020-10-12 22:40:56,609 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2020-10-12 22:40:56,609 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2020-10-12 22:40:56,609 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2020-10-12 22:40:56,609 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2020-10-12 22:40:56,609 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2020-10-12 22:40:56,609 INFO L130 BoogieDeclarations]: Found specification of procedure pi_do_claimed [2020-10-12 22:40:56,609 INFO L130 BoogieDeclarations]: Found specification of procedure ps_tq_int [2020-10-12 22:40:56,609 INFO L130 BoogieDeclarations]: Found specification of procedure ps_set_intr [2020-10-12 22:40:56,609 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2020-10-12 22:40:56,610 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~int [2020-10-12 22:40:56,610 INFO L130 BoogieDeclarations]: Found specification of procedure pf_open [2020-10-12 22:40:56,610 INFO L130 BoogieDeclarations]: Found specification of procedure do_pf_request [2020-10-12 22:40:56,610 INFO L130 BoogieDeclarations]: Found specification of procedure pf_ioctl [2020-10-12 22:40:56,610 INFO L130 BoogieDeclarations]: Found specification of procedure pf_getgeo [2020-10-12 22:40:56,610 INFO L130 BoogieDeclarations]: Found specification of procedure pf_release [2020-10-12 22:40:56,610 INFO L130 BoogieDeclarations]: Found specification of procedure pf_detect [2020-10-12 22:40:56,611 INFO L130 BoogieDeclarations]: Found specification of procedure do_pf_read [2020-10-12 22:40:56,611 INFO L130 BoogieDeclarations]: Found specification of procedure do_pf_read_start [2020-10-12 22:40:56,611 INFO L130 BoogieDeclarations]: Found specification of procedure do_pf_write [2020-10-12 22:40:56,611 INFO L130 BoogieDeclarations]: Found specification of procedure do_pf_write_start [2020-10-12 22:40:56,611 INFO L130 BoogieDeclarations]: Found specification of procedure do_pf_read_drq [2020-10-12 22:40:56,611 INFO L130 BoogieDeclarations]: Found specification of procedure do_pf_write_done [2020-10-12 22:40:56,611 INFO L130 BoogieDeclarations]: Found specification of procedure pf_identify [2020-10-12 22:40:56,611 INFO L130 BoogieDeclarations]: Found specification of procedure pf_lock [2020-10-12 22:40:56,612 INFO L130 BoogieDeclarations]: Found specification of procedure pf_eject [2020-10-12 22:40:56,612 INFO L130 BoogieDeclarations]: Found specification of procedure pf_check_events [2020-10-12 22:40:56,612 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 22:40:56,612 INFO L130 BoogieDeclarations]: Found specification of procedure pf_init_units [2020-10-12 22:40:56,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 22:40:56,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2020-10-12 22:40:56,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-12 22:40:56,612 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2020-10-12 22:40:56,612 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2020-10-12 22:40:56,613 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2020-10-12 22:40:56,613 INFO L130 BoogieDeclarations]: Found specification of procedure pf_wait [2020-10-12 22:40:56,613 INFO L130 BoogieDeclarations]: Found specification of procedure pf_command [2020-10-12 22:40:56,613 INFO L130 BoogieDeclarations]: Found specification of procedure pf_completion [2020-10-12 22:40:56,613 INFO L130 BoogieDeclarations]: Found specification of procedure pf_req_sense [2020-10-12 22:40:56,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 22:40:56,613 INFO L130 BoogieDeclarations]: Found specification of procedure pf_atapi [2020-10-12 22:40:56,613 INFO L130 BoogieDeclarations]: Found specification of procedure pf_sleep [2020-10-12 22:40:56,614 INFO L130 BoogieDeclarations]: Found specification of procedure pf_reset [2020-10-12 22:40:56,614 INFO L130 BoogieDeclarations]: Found specification of procedure pf_mode_sense [2020-10-12 22:40:56,614 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2020-10-12 22:40:56,614 INFO L130 BoogieDeclarations]: Found specification of procedure xl [2020-10-12 22:40:56,614 INFO L130 BoogieDeclarations]: Found specification of procedure pf_get_capacity [2020-10-12 22:40:56,614 INFO L130 BoogieDeclarations]: Found specification of procedure pf_probe [2020-10-12 22:40:56,614 INFO L130 BoogieDeclarations]: Found specification of procedure pf_start [2020-10-12 22:40:56,614 INFO L130 BoogieDeclarations]: Found specification of procedure pf_ready [2020-10-12 22:40:56,615 INFO L130 BoogieDeclarations]: Found specification of procedure pf_end_request [2020-10-12 22:40:56,615 INFO L130 BoogieDeclarations]: Found specification of procedure pf_next_buf [2020-10-12 22:40:56,615 INFO L130 BoogieDeclarations]: Found specification of procedure next_request [2020-10-12 22:40:56,615 INFO L130 BoogieDeclarations]: Found specification of procedure pf_init [2020-10-12 22:40:56,615 INFO L130 BoogieDeclarations]: Found specification of procedure pf_exit [2020-10-12 22:40:56,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-12 22:40:56,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-12 22:40:56,616 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 22:40:56,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-12 22:40:56,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-12 22:40:56,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-12 22:40:56,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-12 22:40:56,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-12 22:40:56,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-12 22:40:56,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-12 22:40:56,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-12 22:40:56,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-10-12 22:40:56,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-10-12 22:40:56,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-10-12 22:40:56,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-12 22:40:56,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-10-12 22:40:56,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-12 22:40:56,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-12 22:40:56,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-12 22:40:56,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-12 22:40:56,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_pf_mutex [2020-10-12 22:40:56,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_pf_mutex [2020-10-12 22:40:56,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_pf_mutex [2020-10-12 22:40:56,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_pf_mutex [2020-10-12 22:40:56,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_pf_mutex [2020-10-12 22:40:56,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 22:40:56,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-12 22:40:56,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-12 22:40:56,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-12 22:40:56,620 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-12 22:40:56,620 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-12 22:40:56,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 22:40:56,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-12 22:40:56,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-12 22:40:56,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 22:40:56,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-12 22:40:56,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-12 22:41:02,251 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 22:41:02,252 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-12 22:41:02,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:41:02 BoogieIcfgContainer [2020-10-12 22:41:02,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 22:41:02,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 22:41:02,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 22:41:02,266 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 22:41:02,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 10:40:54" (1/3) ... [2020-10-12 22:41:02,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a8aa134 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:41:02, skipping insertion in model container [2020-10-12 22:41:02,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:40:56" (2/3) ... [2020-10-12 22:41:02,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a8aa134 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:41:02, skipping insertion in model container [2020-10-12 22:41:02,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:41:02" (3/3) ... [2020-10-12 22:41:02,269 INFO L109 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2020-10-12 22:41:02,280 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 22:41:02,290 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 22:41:02,305 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 22:41:02,337 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 22:41:02,337 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 22:41:02,337 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 22:41:02,337 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 22:41:02,337 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 22:41:02,338 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 22:41:02,338 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 22:41:02,338 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 22:41:02,379 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states. [2020-10-12 22:41:02,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-12 22:41:02,389 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 22:41:02,390 INFO L422 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] [2020-10-12 22:41:02,390 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 22:41:02,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 22:41:02,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1309313782, now seen corresponding path program 1 times [2020-10-12 22:41:02,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 22:41:02,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [360840464] [2020-10-12 22:41:02,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 22:41:02,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:41:03,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:41:03,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:41:05,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:41:08,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:41:08,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-12 22:41:08,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 22:41:08,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5155 [2020-10-12 22:41:08,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:41:08,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 22:41:08,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 22:41:08,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 22:41:08,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 22:41:09,798 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification that was a NOOP. DAG size: 535 [2020-10-12 22:41:09,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 22:41:09,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:41:09,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:41:09,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:41:09,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:41:09,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:41:09,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-12 22:41:09,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:41:09,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:41:09,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:41:09,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:41:09,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:41:10,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 22:41:10,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:41:10,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:41:10,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:41:10,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:41:10,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:41:10,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 22:41:10,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:41:10,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 22:41:10,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:41:10,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 22:41:10,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 22:41:10,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 22:41:10,111 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [360840464] [2020-10-12 22:41:10,113 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 22:41:10,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 22:41:10,114 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569975754] [2020-10-12 22:41:10,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 22:41:10,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 22:41:10,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 22:41:10,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 22:41:10,145 INFO L87 Difference]: Start difference. First operand 974 states. Second operand 5 states. [2020-10-12 22:41:12,881 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification that was a NOOP. DAG size: 537 [2020-10-12 22:41:30,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 22:41:30,726 INFO L93 Difference]: Finished difference Result 1422 states and 1943 transitions. [2020-10-12 22:41:30,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 22:41:30,728 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-10-12 22:41:30,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 22:41:30,752 INFO L225 Difference]: With dead ends: 1422 [2020-10-12 22:41:30,753 INFO L226 Difference]: Without dead ends: 828 [2020-10-12 22:41:30,765 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-12 22:41:30,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2020-10-12 22:41:31,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 777. [2020-10-12 22:41:31,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 777 states. [2020-10-12 22:41:31,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1013 transitions. [2020-10-12 22:41:31,087 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1013 transitions. Word has length 28 [2020-10-12 22:41:31,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 22:41:31,087 INFO L479 AbstractCegarLoop]: Abstraction has 777 states and 1013 transitions. [2020-10-12 22:41:31,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 22:41:31,087 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1013 transitions. [2020-10-12 22:41:31,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-12 22:41:31,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 22:41:31,091 INFO L422 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] [2020-10-12 22:41:31,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 22:41:31,092 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 22:41:31,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 22:41:31,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1163026274, now seen corresponding path program 1 times [2020-10-12 22:41:31,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 22:41:31,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1205831089] [2020-10-12 22:41:31,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 22:41:31,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:41:31,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:41:31,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:41:31,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:41:31,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:41:33,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:41:33,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-12 22:41:33,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 22:41:33,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2409 [2020-10-12 22:41:33,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:41:33,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 22:41:33,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-12 22:41:33,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 22:41:33,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 22:41:34,948 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 535 [2020-10-12 22:41:34,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 22:41:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:41:34,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:41:35,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:41:35,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:41:35,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:41:35,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-12 22:41:35,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:41:35,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:41:35,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:41:35,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:41:35,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:41:35,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 22:41:35,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:41:35,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:41:35,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:41:35,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:41:35,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:41:35,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 22:41:35,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:41:35,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:41:35,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:41:35,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:41:35,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:41:35,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 22:41:35,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:41:35,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:41:35,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:41:35,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 22:41:35,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:41:35,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 22:41:35,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:41:35,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 22:41:35,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:41:35,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 22:41:35,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:41:35,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 22:41:35,259 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1205831089] [2020-10-12 22:41:35,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 22:41:35,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-12 22:41:35,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100506876] [2020-10-12 22:41:35,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 22:41:35,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 22:41:35,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 22:41:35,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-12 22:41:35,262 INFO L87 Difference]: Start difference. First operand 777 states and 1013 transitions. Second operand 8 states. [2020-10-12 22:41:39,246 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification that was a NOOP. DAG size: 541 [2020-10-12 22:41:41,747 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 539 [2020-10-12 22:41:59,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 22:41:59,346 INFO L93 Difference]: Finished difference Result 1655 states and 2195 transitions. [2020-10-12 22:41:59,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 22:41:59,346 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 30 [2020-10-12 22:41:59,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 22:41:59,356 INFO L225 Difference]: With dead ends: 1655 [2020-10-12 22:41:59,357 INFO L226 Difference]: Without dead ends: 889 [2020-10-12 22:41:59,361 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-10-12 22:41:59,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2020-10-12 22:41:59,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 782. [2020-10-12 22:41:59,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 782 states. [2020-10-12 22:41:59,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1018 transitions. [2020-10-12 22:41:59,619 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1018 transitions. Word has length 30 [2020-10-12 22:41:59,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 22:41:59,619 INFO L479 AbstractCegarLoop]: Abstraction has 782 states and 1018 transitions. [2020-10-12 22:41:59,619 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 22:41:59,620 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1018 transitions. [2020-10-12 22:41:59,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-12 22:41:59,622 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 22:41:59,622 INFO L422 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] [2020-10-12 22:41:59,622 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 22:41:59,622 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 22:41:59,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 22:41:59,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1220284576, now seen corresponding path program 1 times [2020-10-12 22:41:59,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 22:41:59,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358895500] [2020-10-12 22:41:59,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 22:41:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:41:59,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:41:59,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:00,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:42:00,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-12 22:42:00,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 22:42:00,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1026 [2020-10-12 22:42:00,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:42:00,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 22:42:00,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 22:42:00,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 22:42:00,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:42:02,124 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 535 [2020-10-12 22:42:02,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 22:42:02,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:42:02,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:02,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:42:02,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:42:02,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:42:02,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 344 [2020-10-12 22:42:02,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:42:02,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 22:42:02,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:42:02,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 22:42:02,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:42:02,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 22:42:02,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:42:02,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:02,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:42:02,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:42:02,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:42:02,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 22:42:02,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:42:02,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 22:42:02,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:42:02,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 22:42:02,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:42:02,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 22:42:02,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:42:02,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:02,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:42:02,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 22:42:02,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:42:02,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 22:42:02,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:42:02,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 22:42:02,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 22:42:02,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 22:42:02,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:42:02,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 22:42:02,751 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1358895500] [2020-10-12 22:42:02,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 22:42:02,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 22:42:02,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562691345] [2020-10-12 22:42:02,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 22:42:02,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 22:42:02,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 22:42:02,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-12 22:42:02,754 INFO L87 Difference]: Start difference. First operand 782 states and 1018 transitions. Second operand 7 states. [2020-10-12 22:42:04,997 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification that was a NOOP. DAG size: 537 [2020-10-12 22:42:16,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 22:42:16,809 INFO L93 Difference]: Finished difference Result 885 states and 1185 transitions. [2020-10-12 22:42:16,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 22:42:16,810 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2020-10-12 22:42:16,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 22:42:16,818 INFO L225 Difference]: With dead ends: 885 [2020-10-12 22:42:16,818 INFO L226 Difference]: Without dead ends: 871 [2020-10-12 22:42:16,819 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-12 22:42:16,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2020-10-12 22:42:17,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 777. [2020-10-12 22:42:17,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 777 states. [2020-10-12 22:42:17,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1012 transitions. [2020-10-12 22:42:17,028 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1012 transitions. Word has length 30 [2020-10-12 22:42:17,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 22:42:17,029 INFO L479 AbstractCegarLoop]: Abstraction has 777 states and 1012 transitions. [2020-10-12 22:42:17,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 22:42:17,029 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1012 transitions. [2020-10-12 22:42:17,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-12 22:42:17,031 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 22:42:17,031 INFO L422 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] [2020-10-12 22:42:17,031 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 22:42:17,032 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 22:42:17,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 22:42:17,035 INFO L82 PathProgramCache]: Analyzing trace with hash -25928078, now seen corresponding path program 1 times [2020-10-12 22:42:17,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 22:42:17,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [99890627] [2020-10-12 22:42:17,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 22:42:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:42:17,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:17,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:18,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:19,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:42:19,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-12 22:42:19,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 22:42:19,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2002 [2020-10-12 22:42:19,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:42:19,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 22:42:19,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-12 22:42:19,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 22:42:19,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:42:20,588 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification that was a NOOP. DAG size: 535 [2020-10-12 22:42:20,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 22:42:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:42:20,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:20,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:42:20,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:42:20,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:42:20,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-12 22:42:20,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:42:20,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:42:20,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:42:20,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:42:20,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:42:20,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 22:42:20,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:42:20,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:20,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:42:20,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:42:20,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:42:20,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 22:42:20,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:42:20,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:42:20,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:42:20,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:42:20,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:42:20,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-12 22:42:20,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:42:20,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:20,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:42:20,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 22:42:20,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:42:20,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 22:42:20,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:42:20,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 22:42:20,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 22:42:20,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 22:42:20,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:42:20,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 22:42:20,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:42:20,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:20,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:42:20,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:42:20,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:42:20,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 22:42:20,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:42:20,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:42:20,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:42:20,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:42:20,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:42:20,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-12 22:42:20,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:42:20,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:20,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:42:20,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:42:20,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:42:20,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 22:42:20,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:42:20,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:42:20,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 22:42:20,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:42:20,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:42:20,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 22:42:20,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [99890627] [2020-10-12 22:42:20,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 22:42:20,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 22:42:20,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441686756] [2020-10-12 22:42:20,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 22:42:20,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 22:42:20,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 22:42:20,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 22:42:20,877 INFO L87 Difference]: Start difference. First operand 777 states and 1012 transitions. Second operand 5 states. [2020-10-12 22:42:23,604 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 538 [2020-10-12 22:42:34,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 22:42:34,855 INFO L93 Difference]: Finished difference Result 850 states and 1116 transitions. [2020-10-12 22:42:34,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 22:42:34,856 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2020-10-12 22:42:34,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 22:42:34,862 INFO L225 Difference]: With dead ends: 850 [2020-10-12 22:42:34,862 INFO L226 Difference]: Without dead ends: 834 [2020-10-12 22:42:34,863 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 22:42:34,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2020-10-12 22:42:35,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 778. [2020-10-12 22:42:35,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 778 states. [2020-10-12 22:42:35,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1013 transitions. [2020-10-12 22:42:35,081 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1013 transitions. Word has length 36 [2020-10-12 22:42:35,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 22:42:35,082 INFO L479 AbstractCegarLoop]: Abstraction has 778 states and 1013 transitions. [2020-10-12 22:42:35,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 22:42:35,082 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1013 transitions. [2020-10-12 22:42:35,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-12 22:42:35,084 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 22:42:35,084 INFO L422 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] [2020-10-12 22:42:35,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 22:42:35,084 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 22:42:35,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 22:42:35,085 INFO L82 PathProgramCache]: Analyzing trace with hash -1232035989, now seen corresponding path program 1 times [2020-10-12 22:42:35,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 22:42:35,085 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [234370123] [2020-10-12 22:42:35,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 22:42:35,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:42:35,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:35,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:36,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:37,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:42:37,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 22:42:37,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 22:42:37,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2682 [2020-10-12 22:42:37,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:42:37,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 22:42:37,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-12 22:42:37,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 22:42:37,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:42:39,140 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification that was a NOOP. DAG size: 535 [2020-10-12 22:42:39,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 22:42:39,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:42:39,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:39,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:42:39,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:42:39,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:42:39,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-12 22:42:39,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:42:39,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:42:39,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:42:39,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:42:39,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:42:39,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 22:42:39,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:42:39,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:39,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:42:39,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:42:39,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:42:39,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 22:42:39,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:42:39,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:42:39,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:42:39,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:42:39,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:42:39,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-12 22:42:39,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:42:39,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:39,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:42:39,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 22:42:39,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:42:39,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 22:42:39,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:42:39,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 22:42:39,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 22:42:39,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 22:42:39,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:42:39,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 22:42:39,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:42:39,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:39,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:42:39,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:42:39,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:42:39,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 22:42:39,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:42:39,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:42:39,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:42:39,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:42:39,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:42:39,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-12 22:42:39,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:42:39,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:39,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:42:39,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:42:39,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:42:39,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 22:42:39,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:42:39,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:42:39,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 22:42:39,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:42:39,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:42:39,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 22:42:39,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [234370123] [2020-10-12 22:42:39,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 22:42:39,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 22:42:39,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365493154] [2020-10-12 22:42:39,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 22:42:39,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 22:42:39,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 22:42:39,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 22:42:39,434 INFO L87 Difference]: Start difference. First operand 778 states and 1013 transitions. Second operand 6 states. [2020-10-12 22:42:41,686 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 538 [2020-10-12 22:42:43,321 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 538 [2020-10-12 22:42:56,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 22:42:56,554 INFO L93 Difference]: Finished difference Result 860 states and 1130 transitions. [2020-10-12 22:42:56,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 22:42:56,555 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2020-10-12 22:42:56,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 22:42:56,561 INFO L225 Difference]: With dead ends: 860 [2020-10-12 22:42:56,561 INFO L226 Difference]: Without dead ends: 844 [2020-10-12 22:42:56,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 22:42:56,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2020-10-12 22:42:56,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 788. [2020-10-12 22:42:56,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 788 states. [2020-10-12 22:42:56,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 1027 transitions. [2020-10-12 22:42:56,759 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 1027 transitions. Word has length 40 [2020-10-12 22:42:56,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 22:42:56,759 INFO L479 AbstractCegarLoop]: Abstraction has 788 states and 1027 transitions. [2020-10-12 22:42:56,760 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 22:42:56,760 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 1027 transitions. [2020-10-12 22:42:56,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-12 22:42:56,761 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 22:42:56,761 INFO L422 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] [2020-10-12 22:42:56,762 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 22:42:56,762 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 22:42:56,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 22:42:56,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1962145649, now seen corresponding path program 1 times [2020-10-12 22:42:56,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 22:42:56,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [654153718] [2020-10-12 22:42:56,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 22:42:56,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:42:56,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:57,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:57,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:59,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:42:59,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-12 22:42:59,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 22:42:59,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2376 [2020-10-12 22:42:59,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:42:59,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 22:42:59,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-12 22:42:59,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 22:42:59,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:43:00,641 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification that was a NOOP. DAG size: 535 [2020-10-12 22:43:00,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 22:43:00,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:43:00,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:00,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:43:00,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:43:00,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:43:00,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-12 22:43:00,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:43:00,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:43:00,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:43:00,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:43:00,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:43:00,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 22:43:00,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:43:00,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:00,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:43:00,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:43:00,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:43:00,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 22:43:00,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:43:00,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:43:00,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:43:00,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:43:00,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:43:00,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 22:43:00,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:43:00,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:00,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:43:00,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 22:43:00,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:43:00,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 22:43:00,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:43:00,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 22:43:00,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:43:00,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 22:43:00,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:43:00,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 22:43:00,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:43:00,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:00,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:43:00,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 22:43:00,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:43:00,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 22:43:00,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:43:00,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 22:43:00,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:43:00,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 22:43:00,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:43:00,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-12 22:43:00,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:43:00,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:00,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:43:00,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:43:00,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:43:00,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 22:43:00,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:43:00,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 22:43:00,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:43:00,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 22:43:00,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:43:00,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 22:43:00,914 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [654153718] [2020-10-12 22:43:00,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 22:43:00,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 22:43:00,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026445095] [2020-10-12 22:43:00,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 22:43:00,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 22:43:00,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 22:43:00,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 22:43:00,916 INFO L87 Difference]: Start difference. First operand 788 states and 1027 transitions. Second operand 6 states. [2020-10-12 22:43:05,769 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification that was a NOOP. DAG size: 537 [2020-10-12 22:43:17,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 22:43:17,959 INFO L93 Difference]: Finished difference Result 837 states and 1100 transitions. [2020-10-12 22:43:17,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 22:43:17,960 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2020-10-12 22:43:17,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 22:43:17,966 INFO L225 Difference]: With dead ends: 837 [2020-10-12 22:43:17,967 INFO L226 Difference]: Without dead ends: 834 [2020-10-12 22:43:17,967 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-10-12 22:43:17,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2020-10-12 22:43:18,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 787. [2020-10-12 22:43:18,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 787 states. [2020-10-12 22:43:18,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1025 transitions. [2020-10-12 22:43:18,256 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1025 transitions. Word has length 44 [2020-10-12 22:43:18,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 22:43:18,256 INFO L479 AbstractCegarLoop]: Abstraction has 787 states and 1025 transitions. [2020-10-12 22:43:18,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 22:43:18,257 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1025 transitions. [2020-10-12 22:43:18,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-12 22:43:18,258 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 22:43:18,259 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 22:43:18,259 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 22:43:18,259 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 22:43:18,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 22:43:18,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1807631388, now seen corresponding path program 2 times [2020-10-12 22:43:18,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 22:43:18,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [245882454] [2020-10-12 22:43:18,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 22:43:18,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:43:18,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:18,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:19,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:22,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:43:22,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-12 22:43:22,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 22:43:22,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3865 [2020-10-12 22:43:22,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:43:22,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 22:43:22,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-12 22:43:22,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 22:43:22,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:43:23,452 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 535 [2020-10-12 22:43:23,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 22:43:23,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:43:23,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:23,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:43:23,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:43:23,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:43:23,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-12 22:43:23,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:43:23,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:43:23,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:43:23,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:43:23,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:43:23,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 22:43:23,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:43:23,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:23,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:43:23,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:43:23,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:43:23,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 22:43:23,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:43:23,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:43:23,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:43:23,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:43:23,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:43:23,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-12 22:43:23,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:43:23,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:23,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:43:23,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-12 22:43:23,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:43:23,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 22:43:23,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:43:23,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 22:43:23,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 22:43:23,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 22:43:23,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:43:23,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 22:43:23,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:43:23,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:23,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:43:23,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:43:23,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:43:23,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 22:43:23,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:43:23,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:43:23,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:43:23,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:43:23,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:43:23,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 22:43:23,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:43:23,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:23,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:43:23,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:43:23,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:43:23,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 22:43:23,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:43:23,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:43:23,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 22:43:23,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:43:23,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:43:23,781 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 22:43:23,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [245882454] [2020-10-12 22:43:23,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 22:43:23,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 22:43:23,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851093470] [2020-10-12 22:43:23,784 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 22:43:23,784 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 22:43:23,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 22:43:23,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 22:43:23,785 INFO L87 Difference]: Start difference. First operand 787 states and 1025 transitions. Second operand 7 states. [2020-10-12 22:43:30,107 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 538 [2020-10-12 22:43:32,039 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 538 [2020-10-12 22:43:33,718 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 538 [2020-10-12 22:43:51,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 22:43:51,860 INFO L93 Difference]: Finished difference Result 869 states and 1142 transitions. [2020-10-12 22:43:51,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 22:43:51,861 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 44 [2020-10-12 22:43:51,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 22:43:51,865 INFO L225 Difference]: With dead ends: 869 [2020-10-12 22:43:51,865 INFO L226 Difference]: Without dead ends: 853 [2020-10-12 22:43:51,866 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-10-12 22:43:51,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2020-10-12 22:43:52,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 797. [2020-10-12 22:43:52,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 797 states. [2020-10-12 22:43:52,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1039 transitions. [2020-10-12 22:43:52,145 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1039 transitions. Word has length 44 [2020-10-12 22:43:52,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 22:43:52,146 INFO L479 AbstractCegarLoop]: Abstraction has 797 states and 1039 transitions. [2020-10-12 22:43:52,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 22:43:52,146 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1039 transitions. [2020-10-12 22:43:52,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-12 22:43:52,151 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 22:43:52,151 INFO L422 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] [2020-10-12 22:43:52,151 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 22:43:52,151 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 22:43:52,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 22:43:52,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1960231972, now seen corresponding path program 1 times [2020-10-12 22:43:52,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 22:43:52,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1493953405] [2020-10-12 22:43:52,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 22:43:52,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:43:52,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:52,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:52,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:52,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:54,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:54,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:54,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:57,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:43:57,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-12 22:43:57,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 22:43:57,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5080 [2020-10-12 22:43:57,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:43:57,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 22:43:57,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-12 22:43:57,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 22:43:57,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:43:58,784 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 535 [2020-10-12 22:43:58,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 22:43:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:43:58,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:59,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:43:59,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:43:59,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:43:59,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-12 22:43:59,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:43:59,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:43:59,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:43:59,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:43:59,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:43:59,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 22:43:59,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:43:59,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:59,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:43:59,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:43:59,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:43:59,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 22:43:59,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:43:59,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:43:59,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:43:59,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:43:59,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:43:59,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 22:43:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:43:59,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:59,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:59,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:59,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:59,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:59,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:59,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:43:59,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 22:43:59,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 22:43:59,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-12 22:43:59,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:43:59,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 22:43:59,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-12 22:43:59,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 22:43:59,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:43:59,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 22:43:59,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:43:59,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:59,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:59,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:43:59,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 22:43:59,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 22:43:59,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 22:43:59,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:43:59,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 22:43:59,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 22:43:59,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 22:43:59,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:43:59,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-12 22:43:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:43:59,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:59,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:59,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:59,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:43:59,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 22:43:59,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 22:43:59,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 22:43:59,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:43:59,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 22:43:59,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:43:59,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 22:43:59,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:43:59,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 22:43:59,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1493953405] [2020-10-12 22:43:59,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 22:43:59,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 22:43:59,562 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996715523] [2020-10-12 22:43:59,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 22:43:59,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 22:43:59,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 22:43:59,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-10-12 22:43:59,563 INFO L87 Difference]: Start difference. First operand 797 states and 1039 transitions. Second operand 13 states. [2020-10-12 22:44:04,964 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification that was a NOOP. DAG size: 539 [2020-10-12 22:44:26,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 22:44:26,467 INFO L93 Difference]: Finished difference Result 1692 states and 2247 transitions. [2020-10-12 22:44:26,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 22:44:26,468 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2020-10-12 22:44:26,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 22:44:26,473 INFO L225 Difference]: With dead ends: 1692 [2020-10-12 22:44:26,473 INFO L226 Difference]: Without dead ends: 906 [2020-10-12 22:44:26,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2020-10-12 22:44:26,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2020-10-12 22:44:26,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 802. [2020-10-12 22:44:26,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 802 states. [2020-10-12 22:44:26,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1044 transitions. [2020-10-12 22:44:26,723 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1044 transitions. Word has length 44 [2020-10-12 22:44:26,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 22:44:26,725 INFO L479 AbstractCegarLoop]: Abstraction has 802 states and 1044 transitions. [2020-10-12 22:44:26,725 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 22:44:26,725 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1044 transitions. [2020-10-12 22:44:26,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-12 22:44:26,727 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 22:44:26,727 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 22:44:26,727 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 22:44:26,727 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 22:44:26,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 22:44:26,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1028787235, now seen corresponding path program 3 times [2020-10-12 22:44:26,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 22:44:26,728 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [197914674] [2020-10-12 22:44:26,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 22:44:26,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:44:26,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:44:26,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:44:28,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:44:29,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:44:29,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-12 22:44:29,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 22:44:29,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2791 [2020-10-12 22:44:29,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:44:29,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 22:44:29,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-12 22:44:29,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 22:44:29,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:44:30,930 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification that was a NOOP. DAG size: 535 [2020-10-12 22:44:30,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 22:44:30,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:44:30,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:44:31,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:44:31,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:44:31,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:44:31,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-12 22:44:31,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:44:31,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:44:31,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:44:31,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:44:31,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:44:31,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 22:44:31,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:44:31,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:44:31,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:44:31,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:44:31,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:44:31,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 22:44:31,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:44:31,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:44:31,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:44:31,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:44:31,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:44:31,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-12 22:44:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:44:31,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:44:31,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:44:31,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 22:44:31,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:44:31,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 22:44:31,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:44:31,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 22:44:31,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 22:44:31,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 22:44:31,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:44:31,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 22:44:31,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:44:31,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:44:31,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:44:31,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:44:31,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:44:31,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 22:44:31,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:44:31,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:44:31,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:44:31,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:44:31,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:44:31,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 22:44:31,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:44:31,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:44:31,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:44:31,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:44:31,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:44:31,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 22:44:31,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:44:31,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:44:31,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 22:44:31,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:44:31,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:44:31,188 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 22:44:31,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [197914674] [2020-10-12 22:44:31,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 22:44:31,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 22:44:31,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628930051] [2020-10-12 22:44:31,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 22:44:31,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 22:44:31,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 22:44:31,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 22:44:31,191 INFO L87 Difference]: Start difference. First operand 802 states and 1044 transitions. Second operand 8 states. [2020-10-12 22:44:34,073 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 538 [2020-10-12 22:44:35,927 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification that was a NOOP. DAG size: 538 [2020-10-12 22:44:37,613 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification that was a NOOP. DAG size: 538