/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-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--usb_8dev.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 23:12:04,469 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 23:12:04,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 23:12:04,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 23:12:04,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 23:12:04,523 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 23:12:04,525 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 23:12:04,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 23:12:04,531 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 23:12:04,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 23:12:04,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 23:12:04,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 23:12:04,536 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 23:12:04,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 23:12:04,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 23:12:04,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 23:12:04,544 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 23:12:04,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 23:12:04,548 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 23:12:04,555 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 23:12:04,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 23:12:04,558 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 23:12:04,559 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 23:12:04,560 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 23:12:04,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 23:12:04,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 23:12:04,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 23:12:04,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 23:12:04,578 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 23:12:04,579 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 23:12:04,583 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 23:12:04,584 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 23:12:04,585 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 23:12:04,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 23:12:04,588 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 23:12:04,589 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 23:12:04,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 23:12:04,590 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 23:12:04,590 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 23:12:04,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 23:12:04,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 23:12:04,593 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 23:12:04,631 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 23:12:04,632 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 23:12:04,634 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 23:12:04,634 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 23:12:04,634 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 23:12:04,634 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 23:12:04,635 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 23:12:04,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 23:12:04,635 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 23:12:04,635 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 23:12:04,636 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 23:12:04,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 23:12:04,637 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 23:12:04,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 23:12:04,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 23:12:04,638 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 23:12:04,638 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 23:12:04,638 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 23:12:04,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 23:12:04,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 23:12:04,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 23:12:04,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 23:12:04,639 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 23:12:04,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 23:12:04,639 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 23:12:04,639 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 23:12:04,640 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-12 23:12:04,640 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 23:12:04,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 23:12:04,996 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 23:12:04,999 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 23:12:05,001 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 23:12:05,002 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 23:12:05,002 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--usb_8dev.ko-entry_point.cil.out.i [2020-10-12 23:12:05,070 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5f1b9d010/28bb902d06cf400581848abccc2d467b/FLAG771bdfd2d [2020-10-12 23:12:05,887 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 23:12:05,887 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--usb_8dev.ko-entry_point.cil.out.i [2020-10-12 23:12:05,935 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5f1b9d010/28bb902d06cf400581848abccc2d467b/FLAG771bdfd2d [2020-10-12 23:12:06,431 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5f1b9d010/28bb902d06cf400581848abccc2d467b [2020-10-12 23:12:06,441 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 23:12:06,443 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 23:12:06,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 23:12:06,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 23:12:06,448 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 23:12:06,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:12:06" (1/1) ... [2020-10-12 23:12:06,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@427c53a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:12:06, skipping insertion in model container [2020-10-12 23:12:06,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:12:06" (1/1) ... [2020-10-12 23:12:06,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 23:12:06,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 23:12:08,371 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 23:12:08,417 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 23:12:08,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 23:12:08,957 INFO L208 MainTranslator]: Completed translation [2020-10-12 23:12:08,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:12:08 WrapperNode [2020-10-12 23:12:08,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 23:12:08,960 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 23:12:08,960 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 23:12:08,961 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 23:12:08,976 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:12:08" (1/1) ... [2020-10-12 23:12:08,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:12:08" (1/1) ... [2020-10-12 23:12:09,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:12:08" (1/1) ... [2020-10-12 23:12:09,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:12:08" (1/1) ... [2020-10-12 23:12:09,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:12:08" (1/1) ... [2020-10-12 23:12:09,204 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:12:08" (1/1) ... [2020-10-12 23:12:09,238 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:12:08" (1/1) ... [2020-10-12 23:12:09,272 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 23:12:09,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 23:12:09,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 23:12:09,279 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 23:12:09,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:12:08" (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 23:12:09,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 23:12:09,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 23:12:09,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-12 23:12:09,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2020-10-12 23:12:09,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2020-10-12 23:12:09,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2020-10-12 23:12:09,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32p [2020-10-12 23:12:09,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2020-10-12 23:12:09,363 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-10-12 23:12:09,364 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2020-10-12 23:12:09,365 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-10-12 23:12:09,365 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2020-10-12 23:12:09,365 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-10-12 23:12:09,365 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2020-10-12 23:12:09,365 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2020-10-12 23:12:09,366 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2020-10-12 23:12:09,366 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-10-12 23:12:09,370 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-12 23:12:09,371 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2020-10-12 23:12:09,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-12 23:12:09,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-12 23:12:09,372 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-12 23:12:09,372 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-12 23:12:09,372 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 23:12:09,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-12 23:12:09,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-12 23:12:09,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-12 23:12:09,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-12 23:12:09,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-12 23:12:09,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-12 23:12:09,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-12 23:12:09,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-12 23:12:09,373 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2020-10-12 23:12:09,373 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-10-12 23:12:09,374 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2020-10-12 23:12:09,374 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2020-10-12 23:12:09,374 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2020-10-12 23:12:09,374 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2020-10-12 23:12:09,374 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2020-10-12 23:12:09,374 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2020-10-12 23:12:09,377 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2020-10-12 23:12:09,377 INFO L138 BoogieDeclarations]: Found implementation of procedure can_dropped_invalid_skb [2020-10-12 23:12:09,377 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_send_cmd_msg [2020-10-12 23:12:09,377 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_wait_cmd_msg [2020-10-12 23:12:09,379 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_send_cmd [2020-10-12 23:12:09,379 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_cmd_open [2020-10-12 23:12:09,379 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_cmd_close [2020-10-12 23:12:09,380 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_cmd_version [2020-10-12 23:12:09,380 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_set_mode [2020-10-12 23:12:09,380 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_rx_err_msg [2020-10-12 23:12:09,380 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_rx_can_msg [2020-10-12 23:12:09,381 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_read_bulk_callback [2020-10-12 23:12:09,381 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_write_bulk_callback [2020-10-12 23:12:09,381 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_start_xmit [2020-10-12 23:12:09,381 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_get_berr_counter [2020-10-12 23:12:09,382 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_start [2020-10-12 23:12:09,382 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_open [2020-10-12 23:12:09,382 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2020-10-12 23:12:09,382 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_close [2020-10-12 23:12:09,383 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_probe [2020-10-12 23:12:09,383 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_disconnect [2020-10-12 23:12:09,383 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_driver_init [2020-10-12 23:12:09,383 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_driver_exit [2020-10-12 23:12:09,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-10-12 23:12:09,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_2 [2020-10-12 23:12:09,384 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 23:12:09,384 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-10-12 23:12:09,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_2 [2020-10-12 23:12:09,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2020-10-12 23:12:09,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_4 [2020-10-12 23:12:09,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_6 [2020-10-12 23:12:09,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_7 [2020-10-12 23:12:09,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_8 [2020-10-12 23:12:09,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_9 [2020-10-12 23:12:09,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_10 [2020-10-12 23:12:09,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2020-10-12 23:12:09,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_13 [2020-10-12 23:12:09,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_14 [2020-10-12 23:12:09,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_15 [2020-10-12 23:12:09,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_16 [2020-10-12 23:12:09,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_18 [2020-10-12 23:12:09,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_19 [2020-10-12 23:12:09,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-10-12 23:12:09,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-10-12 23:12:09,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-10-12 23:12:09,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-10-12 23:12:09,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2020-10-12 23:12:09,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-10-12 23:12:09,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-10-12 23:12:09,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-10-12 23:12:09,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-10-12 23:12:09,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2020-10-12 23:12:09,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-10-12 23:12:09,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-10-12 23:12:09,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-10-12 23:12:09,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-10-12 23:12:09,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-10-12 23:12:09,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-10-12 23:12:09,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-12 23:12:09,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2020-10-12 23:12:09,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2020-10-12 23:12:09,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2020-10-12 23:12:09,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-12 23:12:09,391 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2020-10-12 23:12:09,391 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_can_err_skb [2020-10-12 23:12:09,391 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_can_skb [2020-10-12 23:12:09,392 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_candev [2020-10-12 23:12:09,392 INFO L138 BoogieDeclarations]: Found implementation of procedure can_bus_off [2020-10-12 23:12:09,392 INFO L138 BoogieDeclarations]: Found implementation of procedure can_free_echo_skb [2020-10-12 23:12:09,392 INFO L138 BoogieDeclarations]: Found implementation of procedure can_get_echo_skb [2020-10-12 23:12:09,392 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_event [2020-10-12 23:12:09,392 INFO L138 BoogieDeclarations]: Found implementation of procedure can_put_echo_skb [2020-10-12 23:12:09,393 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2020-10-12 23:12:09,393 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2020-10-12 23:12:09,393 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-12 23:12:09,393 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_can_led_init [2020-10-12 23:12:09,394 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2020-10-12 23:12:09,394 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2020-10-12 23:12:09,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-12 23:12:09,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_2 [2020-10-12 23:12:09,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_2 [2020-10-12 23:12:09,395 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2020-10-12 23:12:09,395 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-12 23:12:09,395 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2020-10-12 23:12:09,395 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2020-10-12 23:12:09,396 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2020-10-12 23:12:09,397 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2020-10-12 23:12:09,397 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2020-10-12 23:12:09,398 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2020-10-12 23:12:09,401 INFO L138 BoogieDeclarations]: Found implementation of procedure open_candev [2020-10-12 23:12:09,401 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-12 23:12:09,401 INFO L138 BoogieDeclarations]: Found implementation of procedure register_candev [2020-10-12 23:12:09,402 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-10-12 23:12:09,402 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2020-10-12 23:12:09,402 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2020-10-12 23:12:09,402 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2020-10-12 23:12:09,403 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-12 23:12:09,403 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2020-10-12 23:12:09,403 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2020-10-12 23:12:09,403 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-12 23:12:09,404 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2020-10-12 23:12:09,404 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2020-10-12 23:12:09,404 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-12 23:12:09,404 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-12 23:12:09,405 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-12 23:12:09,412 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-12 23:12:09,412 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-12 23:12:09,413 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 23:12:09,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-12 23:12:09,413 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-12 23:12:09,413 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-12 23:12:09,413 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-10-12 23:12:09,413 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2020-10-12 23:12:09,413 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2020-10-12 23:12:09,414 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2020-10-12 23:12:09,414 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32p [2020-10-12 23:12:09,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 23:12:09,414 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2020-10-12 23:12:09,415 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-10-12 23:12:09,415 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2020-10-12 23:12:09,415 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-10-12 23:12:09,415 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2020-10-12 23:12:09,415 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-12 23:12:09,415 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-12 23:12:09,415 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-10-12 23:12:09,415 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2020-10-12 23:12:09,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 23:12:09,416 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2020-10-12 23:12:09,416 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2020-10-12 23:12:09,416 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-10-12 23:12:09,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-12 23:12:09,417 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-12 23:12:09,417 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-12 23:12:09,417 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2020-10-12 23:12:09,417 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2020-10-12 23:12:09,417 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2020-10-12 23:12:09,418 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-12 23:12:09,418 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-12 23:12:09,418 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2020-10-12 23:12:09,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_16 [2020-10-12 23:12:09,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_15 [2020-10-12 23:12:09,418 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-10-12 23:12:09,419 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-12 23:12:09,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_18 [2020-10-12 23:12:09,419 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-12 23:12:09,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_19 [2020-10-12 23:12:09,419 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2020-10-12 23:12:09,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 23:12:09,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 23:12:09,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_2 [2020-10-12 23:12:09,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_4 [2020-10-12 23:12:09,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_9 [2020-10-12 23:12:09,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_7 [2020-10-12 23:12:09,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_8 [2020-10-12 23:12:09,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_10 [2020-10-12 23:12:09,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_13 [2020-10-12 23:12:09,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_14 [2020-10-12 23:12:09,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2020-10-12 23:12:09,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_6 [2020-10-12 23:12:09,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2020-10-12 23:12:09,421 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2020-10-12 23:12:09,421 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2020-10-12 23:12:09,421 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2020-10-12 23:12:09,421 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2020-10-12 23:12:09,422 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2020-10-12 23:12:09,422 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2020-10-12 23:12:09,422 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2020-10-12 23:12:09,422 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-12 23:12:09,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2020-10-12 23:12:09,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-10-12 23:12:09,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-10-12 23:12:09,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-10-12 23:12:09,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2020-10-12 23:12:09,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-10-12 23:12:09,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-10-12 23:12:09,423 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-12 23:12:09,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-12 23:12:09,423 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-12 23:12:09,423 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-12 23:12:09,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-12 23:12:09,424 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-12 23:12:09,424 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 23:12:09,424 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-12 23:12:09,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 23:12:09,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-12 23:12:09,424 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 23:12:09,425 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 23:12:09,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 23:12:09,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-12 23:12:09,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-12 23:12:09,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-12 23:12:09,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-12 23:12:09,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-12 23:12:09,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-12 23:12:09,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-10-12 23:12:09,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_2 [2020-10-12 23:12:09,426 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2020-10-12 23:12:09,426 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2020-10-12 23:12:09,426 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2020-10-12 23:12:09,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-12 23:12:09,426 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-10-12 23:12:09,426 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2020-10-12 23:12:09,426 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2020-10-12 23:12:09,427 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2020-10-12 23:12:09,427 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2020-10-12 23:12:09,427 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2020-10-12 23:12:09,427 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2020-10-12 23:12:09,427 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2020-10-12 23:12:09,427 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2020-10-12 23:12:09,427 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2020-10-12 23:12:09,428 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2020-10-12 23:12:09,428 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2020-10-12 23:12:09,428 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-10-12 23:12:09,428 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2020-10-12 23:12:09,428 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2020-10-12 23:12:09,429 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2020-10-12 23:12:09,433 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_event [2020-10-12 23:12:09,433 INFO L130 BoogieDeclarations]: Found specification of procedure devm_can_led_init [2020-10-12 23:12:09,433 INFO L130 BoogieDeclarations]: Found specification of procedure can_dropped_invalid_skb [2020-10-12 23:12:09,434 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_candev [2020-10-12 23:12:09,434 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2020-10-12 23:12:09,434 INFO L130 BoogieDeclarations]: Found specification of procedure open_candev [2020-10-12 23:12:09,434 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2020-10-12 23:12:09,434 INFO L130 BoogieDeclarations]: Found specification of procedure register_candev [2020-10-12 23:12:09,434 INFO L130 BoogieDeclarations]: Found specification of procedure can_bus_off [2020-10-12 23:12:09,434 INFO L130 BoogieDeclarations]: Found specification of procedure can_put_echo_skb [2020-10-12 23:12:09,434 INFO L130 BoogieDeclarations]: Found specification of procedure can_get_echo_skb [2020-10-12 23:12:09,435 INFO L130 BoogieDeclarations]: Found specification of procedure can_free_echo_skb [2020-10-12 23:12:09,435 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_can_skb [2020-10-12 23:12:09,435 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_can_err_skb [2020-10-12 23:12:09,435 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_send_cmd_msg [2020-10-12 23:12:09,435 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_wait_cmd_msg [2020-10-12 23:12:09,436 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_send_cmd [2020-10-12 23:12:09,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-12 23:12:09,438 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_cmd_open [2020-10-12 23:12:09,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-12 23:12:09,438 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_cmd_close [2020-10-12 23:12:09,438 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_cmd_version [2020-10-12 23:12:09,439 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_set_mode [2020-10-12 23:12:09,439 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_rx_err_msg [2020-10-12 23:12:09,439 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_rx_can_msg [2020-10-12 23:12:09,439 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_read_bulk_callback [2020-10-12 23:12:09,439 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_write_bulk_callback [2020-10-12 23:12:09,439 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_start_xmit [2020-10-12 23:12:09,439 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_get_berr_counter [2020-10-12 23:12:09,439 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_start [2020-10-12 23:12:09,440 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_open [2020-10-12 23:12:09,440 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2020-10-12 23:12:09,440 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_close [2020-10-12 23:12:09,440 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_probe [2020-10-12 23:12:09,440 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_disconnect [2020-10-12 23:12:09,440 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_driver_init [2020-10-12 23:12:09,440 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_driver_exit [2020-10-12 23:12:09,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_2 [2020-10-12 23:12:09,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_2 [2020-10-12 23:12:09,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-12 23:12:09,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-12 23:12:09,441 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 23:12:09,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-10-12 23:12:09,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-10-12 23:12:09,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-10-12 23:12:09,441 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-12 23:12:09,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-10-12 23:12:09,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-10-12 23:12:09,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-10-12 23:12:09,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-10-12 23:12:09,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-10-12 23:12:09,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-10-12 23:12:09,442 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-12 23:12:09,442 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-12 23:12:09,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 23:12:09,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-12 23:12:09,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-12 23:12:09,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-12 23:12:09,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 23:12:09,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-12 23:12:09,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-12 23:12:09,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-12 23:12:10,921 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-12 23:12:14,988 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-10-12 23:12:15,704 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 23:12:15,705 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-12 23:12:15,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:12:15 BoogieIcfgContainer [2020-10-12 23:12:15,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 23:12:15,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 23:12:15,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 23:12:15,724 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 23:12:15,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 11:12:06" (1/3) ... [2020-10-12 23:12:15,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75268f20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:12:15, skipping insertion in model container [2020-10-12 23:12:15,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:12:08" (2/3) ... [2020-10-12 23:12:15,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75268f20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:12:15, skipping insertion in model container [2020-10-12 23:12:15,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:12:15" (3/3) ... [2020-10-12 23:12:15,729 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--usb_8dev.ko-entry_point.cil.out.i [2020-10-12 23:12:15,740 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 23:12:15,755 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 23:12:15,772 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 23:12:15,809 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 23:12:15,810 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 23:12:15,810 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 23:12:15,810 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 23:12:15,810 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 23:12:15,810 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 23:12:15,810 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 23:12:15,810 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 23:12:15,863 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states. [2020-10-12 23:12:15,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-12 23:12:15,880 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:12:15,881 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 23:12:15,881 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:12:15,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:12:15,889 INFO L82 PathProgramCache]: Analyzing trace with hash 228599628, now seen corresponding path program 1 times [2020-10-12 23:12:15,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:12:15,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [752151685] [2020-10-12 23:12:15,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:12:16,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:16,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:17,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:19,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:19,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-12 23:12:19,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 23:12:19,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2557 [2020-10-12 23:12:19,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:19,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 23:12:19,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 23:12:19,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 23:12:19,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 23:12:20,266 WARN L193 SmtUtils]: Spent 946.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-12 23:12:20,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:12:20,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:20,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:20,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:20,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:12:20,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:20,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 341 [2020-10-12 23:12:20,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:20,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:12:20,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:20,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 23:12:20,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:20,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:12:20,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:20,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:20,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:20,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:12:20,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:20,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 23:12:20,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:20,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:12:20,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:20,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:12:20,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:12:20,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 23:12:20,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:20,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:20,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:20,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:12:20,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:20,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 23:12:20,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:20,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:12:20,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:20,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:12:20,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:12:20,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 23:12:20,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:20,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:20,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:20,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:12:20,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:20,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 23:12:20,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:20,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:12:20,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:20,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 23:12:20,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:20,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 23:12:20,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:20,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:20,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:20,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-12 23:12:20,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:20,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 23:12:20,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:20,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:12:20,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:20,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 23:12:20,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:21,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:12:21,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:21,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:21,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:21,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 23:12:21,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:21,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 23:12:21,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:21,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:12:21,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:21,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:12:21,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:21,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:12:21,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:21,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:21,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:21,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:12:21,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:21,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 23:12:21,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:21,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:12:21,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:21,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:12:21,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:12:21,079 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 23:12:21,080 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [752151685] [2020-10-12 23:12:21,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 23:12:21,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 23:12:21,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968534675] [2020-10-12 23:12:21,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 23:12:21,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:12:21,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 23:12:21,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 23:12:21,106 INFO L87 Difference]: Start difference. First operand 996 states. Second operand 6 states. [2020-10-12 23:12:24,228 WARN L193 SmtUtils]: Spent 988.00 ms on a formula simplification that was a NOOP. DAG size: 379 [2020-10-12 23:12:56,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 23:12:56,056 INFO L93 Difference]: Finished difference Result 3419 states and 4628 transitions. [2020-10-12 23:12:56,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 23:12:56,060 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2020-10-12 23:12:56,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 23:12:56,126 INFO L225 Difference]: With dead ends: 3419 [2020-10-12 23:12:56,126 INFO L226 Difference]: Without dead ends: 2422 [2020-10-12 23:12:56,142 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-12 23:12:56,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2422 states. [2020-10-12 23:12:56,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2422 to 1960. [2020-10-12 23:12:56,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1960 states. [2020-10-12 23:12:56,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1960 states to 1960 states and 2474 transitions. [2020-10-12 23:12:56,810 INFO L78 Accepts]: Start accepts. Automaton has 1960 states and 2474 transitions. Word has length 45 [2020-10-12 23:12:56,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 23:12:56,811 INFO L479 AbstractCegarLoop]: Abstraction has 1960 states and 2474 transitions. [2020-10-12 23:12:56,811 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 23:12:56,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1960 states and 2474 transitions. [2020-10-12 23:12:56,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-12 23:12:56,816 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:12:56,816 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 23:12:56,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 23:12:56,816 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:12:56,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:12:56,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1503927421, now seen corresponding path program 1 times [2020-10-12 23:12:56,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:12:56,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [23481174] [2020-10-12 23:12:56,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:12:56,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:56,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:57,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:57,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:57,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-12 23:12:57,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 23:12:57,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 737 [2020-10-12 23:12:57,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:57,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:12:57,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-12 23:12:57,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 23:12:57,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:58,464 WARN L193 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-12 23:12:58,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:12:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:58,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:58,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:58,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:12:58,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:58,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-12 23:12:58,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:58,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:12:58,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:58,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:12:58,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:58,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:12:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:58,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:58,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:58,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:12:58,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:58,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 23:12:58,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:58,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:12:58,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:58,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:12:58,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:58,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 23:12:58,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:58,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:58,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:58,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:12:58,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:58,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 23:12:58,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:58,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:12:58,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:58,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:12:58,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:58,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 23:12:58,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:58,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:58,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:58,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:12:58,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:58,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 23:12:58,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:58,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:12:58,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:58,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:12:58,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:58,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 23:12:58,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:58,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:58,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:58,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-12 23:12:58,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:58,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 23:12:58,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:58,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:12:58,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-12 23:12:58,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:12:58,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:58,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:12:58,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:58,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:58,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:58,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 23:12:58,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:58,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 23:12:58,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:58,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:12:58,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:58,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:12:58,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:58,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:12:58,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:58,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:58,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:58,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:12:58,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:58,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 23:12:58,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:58,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:12:58,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:58,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:12:58,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:58,771 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 23:12:58,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [23481174] [2020-10-12 23:12:58,772 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 23:12:58,772 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 23:12:58,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441317843] [2020-10-12 23:12:58,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 23:12:58,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:12:58,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 23:12:58,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 23:12:58,775 INFO L87 Difference]: Start difference. First operand 1960 states and 2474 transitions. Second operand 6 states. [2020-10-12 23:13:03,982 WARN L193 SmtUtils]: Spent 700.00 ms on a formula simplification that was a NOOP. DAG size: 378 [2020-10-12 23:13:33,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 23:13:33,846 INFO L93 Difference]: Finished difference Result 4709 states and 6262 transitions. [2020-10-12 23:13:33,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 23:13:33,847 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2020-10-12 23:13:33,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 23:13:33,875 INFO L225 Difference]: With dead ends: 4709 [2020-10-12 23:13:33,875 INFO L226 Difference]: Without dead ends: 4668 [2020-10-12 23:13:33,879 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-12 23:13:33,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4668 states. [2020-10-12 23:13:34,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4668 to 3807. [2020-10-12 23:13:34,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3807 states. [2020-10-12 23:13:34,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3807 states to 3807 states and 4822 transitions. [2020-10-12 23:13:34,480 INFO L78 Accepts]: Start accepts. Automaton has 3807 states and 4822 transitions. Word has length 46 [2020-10-12 23:13:34,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 23:13:34,480 INFO L479 AbstractCegarLoop]: Abstraction has 3807 states and 4822 transitions. [2020-10-12 23:13:34,480 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 23:13:34,481 INFO L276 IsEmpty]: Start isEmpty. Operand 3807 states and 4822 transitions. [2020-10-12 23:13:34,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-12 23:13:34,484 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:13:34,485 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 23:13:34,485 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 23:13:34,485 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:13:34,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:13:34,486 INFO L82 PathProgramCache]: Analyzing trace with hash -154586450, now seen corresponding path program 1 times [2020-10-12 23:13:34,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:13:34,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [187078115] [2020-10-12 23:13:34,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:13:34,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:13:34,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:13:35,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:13:35,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-12 23:13:35,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:13:35,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 614 [2020-10-12 23:13:35,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:13:35,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:13:35,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 23:13:35,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 23:13:35,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:13:36,039 WARN L193 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-12 23:13:36,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:13:36,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:13:36,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:13:36,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:13:36,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:13:36,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:13:36,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 303 [2020-10-12 23:13:36,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:13:36,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:13:36,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:13:36,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 23:13:36,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:13:36,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:13:36,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:13:36,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:13:36,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:13:36,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:13:36,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:13:36,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 23:13:36,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:13:36,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:13:36,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:13:36,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:13:36,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:13:36,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 23:13:36,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:13:36,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:13:36,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:13:36,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:13:36,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:13:36,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 23:13:36,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:13:36,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:13:36,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:13:36,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:13:36,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:13:36,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 23:13:36,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:13:36,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:13:36,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:13:36,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:13:36,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:13:36,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 23:13:36,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:13:36,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:13:36,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:13:36,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 23:13:36,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:13:36,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-12 23:13:36,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:13:36,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:13:36,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:13:36,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 23:13:36,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:13:36,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 23:13:36,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:13:36,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:13:36,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:13:36,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 23:13:36,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:13:36,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:13:36,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:13:36,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:13:36,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:13:36,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-12 23:13:36,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:13:36,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 23:13:36,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:13:36,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:13:36,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:13:36,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:13:36,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:13:36,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:13:36,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:13:36,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:13:36,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:13:36,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:13:36,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:13:36,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 23:13:36,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:13:36,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:13:36,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:13:36,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:13:36,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:13:36,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:13:36,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:13:36,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:13:36,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:13:36,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 23:13:36,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:13:36,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 23:13:36,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:13:36,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:13:36,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:13:36,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:13:36,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:13:36,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:13:36,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:13:36,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:13:36,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:13:36,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:13:36,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:13:36,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 23:13:36,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:13:36,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:13:36,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:13:36,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:13:36,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:13:36,872 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-12 23:13:36,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [187078115] [2020-10-12 23:13:36,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 23:13:36,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 23:13:36,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837046834] [2020-10-12 23:13:36,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 23:13:36,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:13:36,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 23:13:36,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-12 23:13:36,882 INFO L87 Difference]: Start difference. First operand 3807 states and 4822 transitions. Second operand 7 states. [2020-10-12 23:13:42,054 WARN L193 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 379 [2020-10-12 23:14:01,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 23:14:01,083 INFO L93 Difference]: Finished difference Result 4766 states and 6393 transitions. [2020-10-12 23:14:01,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 23:14:01,084 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 62 [2020-10-12 23:14:01,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 23:14:01,112 INFO L225 Difference]: With dead ends: 4766 [2020-10-12 23:14:01,112 INFO L226 Difference]: Without dead ends: 4763 [2020-10-12 23:14:01,115 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-10-12 23:14:01,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4763 states. [2020-10-12 23:14:02,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4763 to 3806. [2020-10-12 23:14:02,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3806 states. [2020-10-12 23:14:02,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3806 states to 3806 states and 4820 transitions. [2020-10-12 23:14:02,209 INFO L78 Accepts]: Start accepts. Automaton has 3806 states and 4820 transitions. Word has length 62 [2020-10-12 23:14:02,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 23:14:02,213 INFO L479 AbstractCegarLoop]: Abstraction has 3806 states and 4820 transitions. [2020-10-12 23:14:02,213 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 23:14:02,213 INFO L276 IsEmpty]: Start isEmpty. Operand 3806 states and 4820 transitions. [2020-10-12 23:14:02,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-12 23:14:02,221 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:14:02,221 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 23:14:02,222 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 23:14:02,222 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:14:02,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:14:02,227 INFO L82 PathProgramCache]: Analyzing trace with hash -497789084, now seen corresponding path program 1 times [2020-10-12 23:14:02,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:14:02,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1565894653] [2020-10-12 23:14:02,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:14:02,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:02,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:02,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:02,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-12 23:14:02,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:02,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 485 [2020-10-12 23:14:02,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:02,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:02,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 23:14:02,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-12 23:14:02,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:03,667 WARN L193 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-12 23:14:03,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:14:03,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:03,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:03,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:03,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:14:03,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:03,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-10-12 23:14:03,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:03,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:03,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:03,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 23:14:03,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:14:04,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:14:04,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:04,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:04,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:04,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:14:04,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:04,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 23:14:04,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:04,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:04,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:04,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:14:04,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:04,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 23:14:04,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:04,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:04,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:04,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:14:04,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:04,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 23:14:04,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:04,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:04,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:04,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:14:04,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:14:04,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 23:14:04,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:04,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:04,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:04,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:14:04,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:04,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 23:14:04,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:04,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:04,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:04,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 23:14:04,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:04,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-12 23:14:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:04,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:04,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:04,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 23:14:04,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:04,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 23:14:04,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:04,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:04,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:04,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 23:14:04,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:04,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:14:04,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:04,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:04,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:04,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-12 23:14:04,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:04,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 23:14:04,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:04,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:14:04,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:04,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:14:04,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:04,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:14:04,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:04,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:04,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:04,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:14:04,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:04,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 23:14:04,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:04,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:14:04,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:04,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:14:04,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:14:04,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:14:04,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:04,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:04,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:04,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 23:14:04,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:04,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 23:14:04,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:04,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:14:04,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:04,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:14:04,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:04,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:14:04,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:04,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:04,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:04,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:14:04,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:04,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 23:14:04,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:04,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:14:04,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:04,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:14:04,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:04,341 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-12 23:14:04,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1565894653] [2020-10-12 23:14:04,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 23:14:04,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 23:14:04,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118585211] [2020-10-12 23:14:04,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 23:14:04,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:14:04,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 23:14:04,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-12 23:14:04,345 INFO L87 Difference]: Start difference. First operand 3806 states and 4820 transitions. Second operand 7 states. [2020-10-12 23:14:07,833 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 378 [2020-10-12 23:14:18,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 23:14:18,790 INFO L93 Difference]: Finished difference Result 4765 states and 6391 transitions. [2020-10-12 23:14:18,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 23:14:18,791 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 63 [2020-10-12 23:14:18,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 23:14:18,818 INFO L225 Difference]: With dead ends: 4765 [2020-10-12 23:14:18,818 INFO L226 Difference]: Without dead ends: 4762 [2020-10-12 23:14:18,822 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-10-12 23:14:18,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4762 states. [2020-10-12 23:14:19,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4762 to 3805. [2020-10-12 23:14:19,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3805 states. [2020-10-12 23:14:19,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3805 states to 3805 states and 4818 transitions. [2020-10-12 23:14:19,763 INFO L78 Accepts]: Start accepts. Automaton has 3805 states and 4818 transitions. Word has length 63 [2020-10-12 23:14:19,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 23:14:19,764 INFO L479 AbstractCegarLoop]: Abstraction has 3805 states and 4818 transitions. [2020-10-12 23:14:19,764 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 23:14:19,764 INFO L276 IsEmpty]: Start isEmpty. Operand 3805 states and 4818 transitions. [2020-10-12 23:14:19,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-12 23:14:19,769 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:14:19,769 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 23:14:19,769 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 23:14:19,770 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:14:19,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:14:19,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1747836017, now seen corresponding path program 1 times [2020-10-12 23:14:19,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:14:19,772 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1379197490] [2020-10-12 23:14:19,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:14:19,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:19,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:20,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:20,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-12 23:14:20,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:20,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 595 [2020-10-12 23:14:20,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:20,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:20,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 23:14:20,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-12 23:14:20,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:14:21,414 WARN L193 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-12 23:14:21,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:14:21,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:21,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:21,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:21,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:14:21,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:21,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-10-12 23:14:21,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:21,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:21,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:21,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 23:14:21,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:21,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:14:21,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:21,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:21,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:21,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:14:21,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:21,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 23:14:21,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:21,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:21,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:21,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:14:21,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:14:21,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 23:14:21,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:21,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:21,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:21,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:14:21,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:21,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 23:14:21,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:21,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:21,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:21,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:14:21,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:14:21,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 23:14:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:21,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:21,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:21,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:14:21,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:21,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 23:14:21,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:21,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:21,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:21,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 23:14:21,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:21,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-12 23:14:21,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:21,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:21,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:21,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 23:14:21,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:21,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 23:14:21,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:21,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:21,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:21,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 23:14:21,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:14:21,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:14:21,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:21,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:21,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:21,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-12 23:14:21,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:21,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 23:14:21,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:21,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:14:21,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:21,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:14:21,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:21,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:14:21,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:21,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:21,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:21,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:14:21,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:21,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 23:14:21,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:21,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:14:21,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:21,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:14:21,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:14:22,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:14:22,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:22,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:22,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:22,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 23:14:22,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:22,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 23:14:22,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:22,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:14:22,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:22,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:14:22,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:14:22,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:14:22,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:22,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:22,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:22,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:14:22,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:22,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 23:14:22,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:22,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:14:22,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:22,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:14:22,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:22,086 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-12 23:14:22,086 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1379197490] [2020-10-12 23:14:22,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 23:14:22,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 23:14:22,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790562042] [2020-10-12 23:14:22,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 23:14:22,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:14:22,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 23:14:22,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-12 23:14:22,090 INFO L87 Difference]: Start difference. First operand 3805 states and 4818 transitions. Second operand 7 states. [2020-10-12 23:14:24,568 WARN L193 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 378 [2020-10-12 23:14:36,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 23:14:36,121 INFO L93 Difference]: Finished difference Result 4764 states and 6389 transitions. [2020-10-12 23:14:36,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 23:14:36,123 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-10-12 23:14:36,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 23:14:36,147 INFO L225 Difference]: With dead ends: 4764 [2020-10-12 23:14:36,147 INFO L226 Difference]: Without dead ends: 4761 [2020-10-12 23:14:36,150 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-10-12 23:14:36,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4761 states. [2020-10-12 23:14:36,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4761 to 3804. [2020-10-12 23:14:36,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3804 states. [2020-10-12 23:14:36,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3804 states to 3804 states and 4816 transitions. [2020-10-12 23:14:36,741 INFO L78 Accepts]: Start accepts. Automaton has 3804 states and 4816 transitions. Word has length 64 [2020-10-12 23:14:36,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 23:14:36,742 INFO L479 AbstractCegarLoop]: Abstraction has 3804 states and 4816 transitions. [2020-10-12 23:14:36,742 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 23:14:36,742 INFO L276 IsEmpty]: Start isEmpty. Operand 3804 states and 4816 transitions. [2020-10-12 23:14:36,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-12 23:14:36,744 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:14:36,744 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 23:14:36,745 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 23:14:36,745 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:14:36,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:14:36,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1652225017, now seen corresponding path program 1 times [2020-10-12 23:14:36,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:14:36,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [361295895] [2020-10-12 23:14:36,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:14:36,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:36,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:37,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:37,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 23:14:37,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:37,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 566 [2020-10-12 23:14:37,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:37,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:37,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 23:14:37,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-12 23:14:37,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:38,222 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-12 23:14:38,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:14:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:38,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:38,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:38,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:14:38,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:38,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-10-12 23:14:38,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:38,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:38,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:38,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 23:14:38,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:38,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:14:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:38,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:38,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:38,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:14:38,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:38,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 23:14:38,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:38,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:38,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:38,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:14:38,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:14:38,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 23:14:38,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:38,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:38,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:38,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:14:38,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:38,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 23:14:38,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:38,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:38,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:38,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:14:38,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:14:38,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 23:14:38,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:38,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:38,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:38,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:14:38,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:38,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 23:14:38,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:38,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:38,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:38,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 23:14:38,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:14:38,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-12 23:14:38,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:38,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:38,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:38,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 23:14:38,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:38,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 23:14:38,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:38,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:38,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:38,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 23:14:38,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:14:38,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:14:38,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:38,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:38,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:38,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-12 23:14:38,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:38,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 23:14:38,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:38,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:14:38,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:38,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:14:38,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:14:38,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:14:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:38,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:38,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:38,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:14:38,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:38,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 23:14:38,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:38,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:14:38,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:38,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:14:38,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:14:38,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:14:38,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:38,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:38,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:38,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 23:14:38,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:38,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 23:14:38,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:38,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:14:38,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:38,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:14:38,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:14:38,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:14:38,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:38,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:38,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:38,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:14:38,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:38,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 23:14:38,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:38,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:14:38,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:38,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:14:38,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:14:38,939 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-12 23:14:38,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [361295895] [2020-10-12 23:14:38,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 23:14:38,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 23:14:38,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389583742] [2020-10-12 23:14:38,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 23:14:38,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:14:38,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 23:14:38,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-12 23:14:38,942 INFO L87 Difference]: Start difference. First operand 3804 states and 4816 transitions. Second operand 7 states. [2020-10-12 23:14:43,208 WARN L193 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 378 [2020-10-12 23:15:00,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 23:15:00,036 INFO L93 Difference]: Finished difference Result 4763 states and 6387 transitions. [2020-10-12 23:15:00,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 23:15:00,038 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-10-12 23:15:00,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 23:15:00,061 INFO L225 Difference]: With dead ends: 4763 [2020-10-12 23:15:00,062 INFO L226 Difference]: Without dead ends: 4738 [2020-10-12 23:15:00,064 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-10-12 23:15:00,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4738 states. [2020-10-12 23:15:00,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4738 to 3784. [2020-10-12 23:15:00,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3784 states. [2020-10-12 23:15:00,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3784 states to 3784 states and 4792 transitions. [2020-10-12 23:15:00,823 INFO L78 Accepts]: Start accepts. Automaton has 3784 states and 4792 transitions. Word has length 65 [2020-10-12 23:15:00,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 23:15:00,823 INFO L479 AbstractCegarLoop]: Abstraction has 3784 states and 4792 transitions. [2020-10-12 23:15:00,824 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 23:15:00,824 INFO L276 IsEmpty]: Start isEmpty. Operand 3784 states and 4792 transitions. [2020-10-12 23:15:00,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-12 23:15:00,830 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:15:00,831 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 23:15:00,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 23:15:00,831 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:15:00,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:15:00,831 INFO L82 PathProgramCache]: Analyzing trace with hash -2054591072, now seen corresponding path program 1 times [2020-10-12 23:15:00,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:15:00,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [254916378] [2020-10-12 23:15:00,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:15:00,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:00,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:01,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:01,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:01,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:06,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:06,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-12 23:15:06,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 23:15:06,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5107 [2020-10-12 23:15:06,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:06,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 23:15:06,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-12 23:15:06,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 23:15:06,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:06,757 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-12 23:15:06,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:15:06,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:06,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:06,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:06,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:15:06,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:06,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-12 23:15:06,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:06,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:06,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:06,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:06,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:06,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:15:06,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:06,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:06,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:06,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:15:06,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:06,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 23:15:06,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:06,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:06,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:06,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:06,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:06,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 23:15:06,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:06,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:06,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:06,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:15:06,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:06,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 23:15:06,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:06,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:06,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:06,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:06,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:06,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 23:15:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:06,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:06,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:06,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:15:06,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:06,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 23:15:06,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:06,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:06,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:06,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:06,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:06,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-12 23:15:06,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:07,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:07,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:07,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:09,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:09,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 23:15:09,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 23:15:09,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2294 [2020-10-12 23:15:09,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:09,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 23:15:09,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-12 23:15:09,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 23:15:09,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:15:09,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:09,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:09,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:09,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:15:09,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:09,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 23:15:09,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:09,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:09,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:09,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:09,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:15:09,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:15:09,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:09,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:09,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:09,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 23:15:09,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:09,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 23:15:09,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:09,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:09,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:09,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:09,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:15:09,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 23:15:09,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:09,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:09,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:09,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:15:09,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:09,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 23:15:09,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:09,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:09,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:09,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:09,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:15:09,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 23:15:09,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:09,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:09,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:09,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:09,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 23:15:09,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 23:15:09,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-10-12 23:15:09,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:09,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 23:15:09,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:09,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 23:15:09,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:09,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:09,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:09,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:09,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:10,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:10,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 23:15:10,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 23:15:10,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-12 23:15:10,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:10,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 23:15:10,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:10,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 23:15:10,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:10,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:10,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:10,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:10,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:10,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:15:10,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:10,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 23:15:10,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:10,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:10,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:10,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:10,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:10,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-12 23:15:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:10,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:10,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:10,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:15:10,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:10,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 23:15:10,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:10,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:10,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:10,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:10,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:10,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-12 23:15:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:10,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:10,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:10,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:15:10,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:10,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 23:15:10,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:10,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:10,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 23:15:10,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:10,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:10,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 23:15:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:10,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:10,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:10,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 23:15:10,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:10,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 23:15:10,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:10,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:10,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-12 23:15:10,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:10,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:10,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:10,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:10,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:10,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:10,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-12 23:15:10,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:10,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 23:15:10,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:10,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:10,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:10,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:10,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:10,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:10,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:10,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:10,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:10,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:15:10,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:10,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 23:15:10,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:10,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:10,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:10,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:10,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:10,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:15:10,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:10,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:10,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:10,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 23:15:10,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:10,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 23:15:10,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:10,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:10,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:10,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:10,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:10,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:10,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:10,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:10,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:15:10,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:10,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 23:15:10,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:10,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:10,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:10,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:10,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:10,564 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-12 23:15:10,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [254916378] [2020-10-12 23:15:10,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 23:15:10,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 23:15:10,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429519934] [2020-10-12 23:15:10,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 23:15:10,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:15:10,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 23:15:10,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2020-10-12 23:15:10,568 INFO L87 Difference]: Start difference. First operand 3784 states and 4792 transitions. Second operand 16 states. [2020-10-12 23:15:36,053 WARN L193 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 385