/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 11:49:36,180 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 11:49:36,183 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 11:49:36,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 11:49:36,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 11:49:36,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 11:49:36,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 11:49:36,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 11:49:36,240 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 11:49:36,243 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 11:49:36,244 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 11:49:36,245 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 11:49:36,245 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 11:49:36,248 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 11:49:36,251 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 11:49:36,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 11:49:36,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 11:49:36,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 11:49:36,260 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 11:49:36,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 11:49:36,270 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 11:49:36,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 11:49:36,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 11:49:36,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 11:49:36,285 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 11:49:36,286 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 11:49:36,286 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 11:49:36,287 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 11:49:36,288 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 11:49:36,289 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 11:49:36,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 11:49:36,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 11:49:36,291 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 11:49:36,291 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 11:49:36,292 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 11:49:36,292 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 11:49:36,293 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 11:49:36,293 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 11:49:36,293 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 11:49:36,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 11:49:36,296 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 11:49:36,297 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 [2020-10-14 11:49:36,336 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 11:49:36,336 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 11:49:36,338 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 11:49:36,339 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 11:49:36,339 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 11:49:36,339 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 11:49:36,339 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 11:49:36,340 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 11:49:36,340 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 11:49:36,340 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 11:49:36,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 11:49:36,341 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 11:49:36,342 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 11:49:36,342 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 11:49:36,342 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 11:49:36,342 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 11:49:36,343 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 11:49:36,343 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 11:49:36,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 11:49:36,343 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 11:49:36,343 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 11:49:36,344 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 11:49:36,344 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 11:49:36,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 11:49:36,344 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 11:49:36,344 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 11:49:36,344 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-14 11:49:36,345 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 11:49:36,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 11:49:36,694 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 11:49:36,698 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 11:49:36,699 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 11:49:36,700 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 11:49:36,700 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i [2020-10-14 11:49:36,761 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fd43514a0/c9b5d72dbe3744be94edf0729f00fd7a/FLAG3b44994a2 [2020-10-14 11:49:37,534 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 11:49:37,535 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i [2020-10-14 11:49:37,562 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fd43514a0/c9b5d72dbe3744be94edf0729f00fd7a/FLAG3b44994a2 [2020-10-14 11:49:37,599 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fd43514a0/c9b5d72dbe3744be94edf0729f00fd7a [2020-10-14 11:49:37,607 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 11:49:37,608 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 11:49:37,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 11:49:37,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 11:49:37,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 11:49:37,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:49:37" (1/1) ... [2020-10-14 11:49:37,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40cf2f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:37, skipping insertion in model container [2020-10-14 11:49:37,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:49:37" (1/1) ... [2020-10-14 11:49:37,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 11:49:37,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 11:49:38,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 11:49:38,991 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 11:49:39,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 11:49:39,343 INFO L208 MainTranslator]: Completed translation [2020-10-14 11:49:39,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:39 WrapperNode [2020-10-14 11:49:39,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 11:49:39,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 11:49:39,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 11:49:39,345 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 11:49:39,360 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:39" (1/1) ... [2020-10-14 11:49:39,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:39" (1/1) ... [2020-10-14 11:49:39,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:39" (1/1) ... [2020-10-14 11:49:39,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:39" (1/1) ... [2020-10-14 11:49:39,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:39" (1/1) ... [2020-10-14 11:49:39,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:39" (1/1) ... [2020-10-14 11:49:39,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:39" (1/1) ... [2020-10-14 11:49:39,573 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 11:49:39,574 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 11:49:39,574 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 11:49:39,574 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 11:49:39,575 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:39" (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 [2020-10-14 11:49:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 11:49:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 11:49:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2020-10-14 11:49:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2020-10-14 11:49:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-10-14 11:49:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-14 11:49:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2020-10-14 11:49:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure register_chrdev [2020-10-14 11:49:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2020-10-14 11:49:39,652 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 11:49:39,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-14 11:49:39,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-14 11:49:39,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-14 11:49:39,653 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-14 11:49:39,653 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2020-10-14 11:49:39,653 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2020-10-14 11:49:39,653 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_init_units [2020-10-14 11:49:39,653 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2020-10-14 11:49:39,654 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2020-10-14 11:49:39,654 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2020-10-14 11:49:39,654 INFO L138 BoogieDeclarations]: Found implementation of procedure DRIVE [2020-10-14 11:49:39,654 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_sleep [2020-10-14 11:49:39,655 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_wait [2020-10-14 11:49:39,655 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_command [2020-10-14 11:49:39,655 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_completion [2020-10-14 11:49:39,655 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_reset [2020-10-14 11:49:39,655 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2020-10-14 11:49:39,656 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_identify [2020-10-14 11:49:39,656 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_probe [2020-10-14 11:49:39,656 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_detect [2020-10-14 11:49:39,691 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_open [2020-10-14 11:49:39,691 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_release [2020-10-14 11:49:39,692 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_write [2020-10-14 11:49:39,692 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_read [2020-10-14 11:49:39,692 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_init [2020-10-14 11:49:39,692 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_exit [2020-10-14 11:49:39,692 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 11:49:39,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2020-10-14 11:49:39,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2020-10-14 11:49:39,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2020-10-14 11:49:39,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2020-10-14 11:49:39,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2020-10-14 11:49:39,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2020-10-14 11:49:39,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2020-10-14 11:49:39,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2020-10-14 11:49:39,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2020-10-14 11:49:39,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_chrdev_10 [2020-10-14 11:49:39,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_11 [2020-10-14 11:49:39,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-14 11:49:39,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-14 11:49:39,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-14 11:49:39,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-14 11:49:39,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-14 11:49:39,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-14 11:49:39,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-14 11:49:39,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-14 11:49:39,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-14 11:49:39,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-14 11:49:39,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-10-14 11:49:39,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-10-14 11:49:39,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-10-14 11:49:39,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-10-14 11:49:39,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-14 11:49:39,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-10-14 11:49:39,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-10-14 11:49:39,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-14 11:49:39,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-14 11:49:39,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-10-14 11:49:39,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-10-14 11:49:39,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-14 11:49:39,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-14 11:49:39,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-10-14 11:49:39,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_pg_mutex [2020-10-14 11:49:39,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_pg_mutex [2020-10-14 11:49:39,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pg_mutex [2020-10-14 11:49:39,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_pg_mutex [2020-10-14 11:49:39,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_pg_mutex [2020-10-14 11:49:39,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_pg_mutex [2020-10-14 11:49:39,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pg_mutex [2020-10-14 11:49:39,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-14 11:49:39,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-14 11:49:39,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __class_create [2020-10-14 11:49:39,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-10-14 11:49:39,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __register_chrdev [2020-10-14 11:49:39,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __unregister_chrdev [2020-10-14 11:49:39,702 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2020-10-14 11:49:39,702 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2020-10-14 11:49:39,702 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2020-10-14 11:49:39,702 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2020-10-14 11:49:39,702 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2020-10-14 11:49:39,702 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2020-10-14 11:49:39,702 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-14 11:49:39,703 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-10-14 11:49:39,703 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-14 11:49:39,703 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2020-10-14 11:49:39,703 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2020-10-14 11:49:39,703 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2020-10-14 11:49:39,703 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2020-10-14 11:49:39,704 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2020-10-14 11:49:39,704 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2020-10-14 11:49:39,704 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2020-10-14 11:49:39,704 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2020-10-14 11:49:39,704 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_regr [2020-10-14 11:49:39,704 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-14 11:49:39,704 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2020-10-14 11:49:39,705 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2020-10-14 11:49:39,705 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-14 11:49:39,705 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-14 11:49:39,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 11:49:39,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-14 11:49:39,705 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2020-10-14 11:49:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2020-10-14 11:49:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-14 11:49:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2020-10-14 11:49:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-14 11:49:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-14 11:49:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2020-10-14 11:49:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2020-10-14 11:49:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-10-14 11:49:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-14 11:49:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-10-14 11:49:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2020-10-14 11:49:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-14 11:49:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2020-10-14 11:49:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2020-10-14 11:49:39,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2020-10-14 11:49:39,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2020-10-14 11:49:39,708 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-14 11:49:39,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2020-10-14 11:49:39,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2020-10-14 11:49:39,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2020-10-14 11:49:39,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2020-10-14 11:49:39,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-14 11:49:39,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-14 11:49:39,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-10-14 11:49:39,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-10-14 11:49:39,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-10-14 11:49:39,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-10-14 11:49:39,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-10-14 11:49:39,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pg_mutex [2020-10-14 11:49:39,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pg_mutex [2020-10-14 11:49:39,710 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 11:49:39,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 11:49:39,710 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2020-10-14 11:49:39,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 11:49:39,711 INFO L130 BoogieDeclarations]: Found specification of procedure __register_chrdev [2020-10-14 11:49:39,711 INFO L130 BoogieDeclarations]: Found specification of procedure __unregister_chrdev [2020-10-14 11:49:39,711 INFO L130 BoogieDeclarations]: Found specification of procedure register_chrdev [2020-10-14 11:49:39,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_chrdev_10 [2020-10-14 11:49:39,711 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2020-10-14 11:49:39,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_11 [2020-10-14 11:49:39,712 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2020-10-14 11:49:39,712 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-10-14 11:49:39,712 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-14 11:49:39,712 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 11:49:39,712 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 11:49:39,712 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 11:49:39,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-14 11:49:39,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-14 11:49:39,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 11:49:39,713 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-14 11:49:39,713 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-14 11:49:39,714 INFO L130 BoogieDeclarations]: Found specification of procedure __class_create [2020-10-14 11:49:39,714 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2020-10-14 11:49:39,714 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2020-10-14 11:49:39,714 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2020-10-14 11:49:39,714 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2020-10-14 11:49:39,715 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2020-10-14 11:49:39,715 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2020-10-14 11:49:39,715 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2020-10-14 11:49:39,715 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2020-10-14 11:49:39,715 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2020-10-14 11:49:39,715 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2020-10-14 11:49:39,715 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_regr [2020-10-14 11:49:39,716 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2020-10-14 11:49:39,716 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2020-10-14 11:49:39,716 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2020-10-14 11:49:39,716 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2020-10-14 11:49:39,716 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2020-10-14 11:49:39,716 INFO L130 BoogieDeclarations]: Found specification of procedure pg_open [2020-10-14 11:49:39,716 INFO L130 BoogieDeclarations]: Found specification of procedure pg_release [2020-10-14 11:49:39,717 INFO L130 BoogieDeclarations]: Found specification of procedure pg_read [2020-10-14 11:49:39,717 INFO L130 BoogieDeclarations]: Found specification of procedure pg_write [2020-10-14 11:49:39,717 INFO L130 BoogieDeclarations]: Found specification of procedure pg_detect [2020-10-14 11:49:39,717 INFO L130 BoogieDeclarations]: Found specification of procedure pg_identify [2020-10-14 11:49:39,717 INFO L130 BoogieDeclarations]: Found specification of procedure pg_init_units [2020-10-14 11:49:39,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 11:49:39,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 11:49:39,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 11:49:39,718 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2020-10-14 11:49:39,718 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2020-10-14 11:49:39,718 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2020-10-14 11:49:39,718 INFO L130 BoogieDeclarations]: Found specification of procedure DRIVE [2020-10-14 11:49:39,718 INFO L130 BoogieDeclarations]: Found specification of procedure pg_sleep [2020-10-14 11:49:39,718 INFO L130 BoogieDeclarations]: Found specification of procedure pg_wait [2020-10-14 11:49:39,719 INFO L130 BoogieDeclarations]: Found specification of procedure pg_command [2020-10-14 11:49:39,719 INFO L130 BoogieDeclarations]: Found specification of procedure pg_completion [2020-10-14 11:49:39,719 INFO L130 BoogieDeclarations]: Found specification of procedure pg_reset [2020-10-14 11:49:39,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 11:49:39,719 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2020-10-14 11:49:39,720 INFO L130 BoogieDeclarations]: Found specification of procedure pg_probe [2020-10-14 11:49:39,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-14 11:49:39,721 INFO L130 BoogieDeclarations]: Found specification of procedure pg_init [2020-10-14 11:49:39,721 INFO L130 BoogieDeclarations]: Found specification of procedure pg_exit [2020-10-14 11:49:39,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-14 11:49:39,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-14 11:49:39,721 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 11:49:39,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-14 11:49:39,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-14 11:49:39,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-14 11:49:39,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-14 11:49:39,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-14 11:49:39,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-14 11:49:39,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-14 11:49:39,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-10-14 11:49:39,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-10-14 11:49:39,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-10-14 11:49:39,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-14 11:49:39,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-10-14 11:49:39,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-14 11:49:39,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-14 11:49:39,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-14 11:49:39,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-14 11:49:39,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_pg_mutex [2020-10-14 11:49:39,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_pg_mutex [2020-10-14 11:49:39,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_pg_mutex [2020-10-14 11:49:39,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_pg_mutex [2020-10-14 11:49:39,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_pg_mutex [2020-10-14 11:49:39,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-14 11:49:39,726 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-14 11:49:39,726 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 11:49:39,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 11:49:39,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-14 11:49:39,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-14 11:49:39,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 11:49:42,244 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 11:49:42,244 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 11:49:42,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:49:42 BoogieIcfgContainer [2020-10-14 11:49:42,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 11:49:42,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 11:49:42,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 11:49:42,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 11:49:42,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:49:37" (1/3) ... [2020-10-14 11:49:42,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@550ec0ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:49:42, skipping insertion in model container [2020-10-14 11:49:42,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:39" (2/3) ... [2020-10-14 11:49:42,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@550ec0ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:49:42, skipping insertion in model container [2020-10-14 11:49:42,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:49:42" (3/3) ... [2020-10-14 11:49:42,266 INFO L109 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i [2020-10-14 11:49:42,279 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 11:49:42,289 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 11:49:42,300 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 11:49:42,327 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 11:49:42,327 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 11:49:42,327 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 11:49:42,328 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 11:49:42,328 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 11:49:42,328 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 11:49:42,328 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 11:49:42,328 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 11:49:42,363 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states. [2020-10-14 11:49:42,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-14 11:49:42,374 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 11:49:42,375 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 11:49:42,375 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 11:49:42,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 11:49:42,382 INFO L82 PathProgramCache]: Analyzing trace with hash 102616919, now seen corresponding path program 1 times [2020-10-14 11:49:42,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 11:49:42,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [688238903] [2020-10-14 11:49:42,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 11:49:42,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:49:43,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:49:43,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:49:43,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:49:43,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:49:45,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:49:45,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-14 11:49:45,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 11:49:45,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3061 [2020-10-14 11:49:45,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:49:45,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:49:45,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:49:45,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 11:49:45,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 11:49:45,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 11:49:46,975 WARN L193 SmtUtils]: Spent 891.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2020-10-14 11:49:46,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 11:49:46,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:49:47,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:49:47,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:49:47,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:49:47,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:49:47,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-14 11:49:47,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:49:47,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:49:47,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:49:47,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:49:47,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:49:47,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:49:47,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 11:49:47,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:49:47,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:49:47,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:49:47,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:49:47,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:49:47,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 11:49:47,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:49:47,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:49:47,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:49:47,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:49:47,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 11:49:47,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:49:47,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 11:49:47,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:49:47,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:49:47,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:49:47,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 11:49:47,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:49:47,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 11:49:47,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:49:47,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:49:47,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:49:47,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:49:47,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 11:49:47,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:49:47,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 11:49:47,314 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [688238903] [2020-10-14 11:49:47,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 11:49:47,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 11:49:47,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503161041] [2020-10-14 11:49:47,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 11:49:47,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 11:49:47,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 11:49:47,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 11:49:47,341 INFO L87 Difference]: Start difference. First operand 702 states. Second operand 6 states. [2020-10-14 11:49:49,907 WARN L193 SmtUtils]: Spent 875.00 ms on a formula simplification that was a NOOP. DAG size: 393 [2020-10-14 11:49:55,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 11:49:55,381 INFO L93 Difference]: Finished difference Result 1210 states and 1585 transitions. [2020-10-14 11:49:55,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 11:49:55,383 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-10-14 11:49:55,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 11:49:55,405 INFO L225 Difference]: With dead ends: 1210 [2020-10-14 11:49:55,406 INFO L226 Difference]: Without dead ends: 620 [2020-10-14 11:49:55,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 11:49:55,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2020-10-14 11:49:55,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 584. [2020-10-14 11:49:55,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2020-10-14 11:49:55,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 750 transitions. [2020-10-14 11:49:55,605 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 750 transitions. Word has length 31 [2020-10-14 11:49:55,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 11:49:55,606 INFO L479 AbstractCegarLoop]: Abstraction has 584 states and 750 transitions. [2020-10-14 11:49:55,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 11:49:55,606 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 750 transitions. [2020-10-14 11:49:55,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-14 11:49:55,610 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 11:49:55,610 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 11:49:55,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 11:49:55,611 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 11:49:55,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 11:49:55,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1114238142, now seen corresponding path program 1 times [2020-10-14 11:49:55,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 11:49:55,612 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1680729981] [2020-10-14 11:49:55,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 11:49:55,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:49:55,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:49:55,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:49:55,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:49:56,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:49:57,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:49:57,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-14 11:49:57,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 11:49:57,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2012 [2020-10-14 11:49:57,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:49:57,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:49:57,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:49:57,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 11:49:57,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 11:49:57,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:49:58,509 WARN L193 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2020-10-14 11:49:58,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 11:49:58,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:49:58,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:49:58,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:49:58,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:49:58,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:49:58,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 11:49:58,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:49:58,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:49:58,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:49:58,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:49:58,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:49:58,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:49:58,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 11:49:58,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:49:58,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:49:58,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:49:58,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:49:58,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:49:58,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 11:49:58,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:49:58,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:49:58,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:49:58,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:49:58,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 11:49:58,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:49:58,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 11:49:58,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:49:58,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:49:58,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:49:58,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 11:49:58,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:49:58,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 11:49:58,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:49:58,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:49:58,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:49:58,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:49:58,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 11:49:58,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:49:58,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 11:49:58,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1680729981] [2020-10-14 11:49:58,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 11:49:58,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 11:49:58,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662177128] [2020-10-14 11:49:58,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 11:49:58,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 11:49:58,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 11:49:58,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 11:49:58,740 INFO L87 Difference]: Start difference. First operand 584 states and 750 transitions. Second operand 6 states. [2020-10-14 11:50:00,582 WARN L193 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 393 [2020-10-14 11:50:07,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 11:50:07,606 INFO L93 Difference]: Finished difference Result 622 states and 800 transitions. [2020-10-14 11:50:07,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 11:50:07,606 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-10-14 11:50:07,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 11:50:07,613 INFO L225 Difference]: With dead ends: 622 [2020-10-14 11:50:07,613 INFO L226 Difference]: Without dead ends: 619 [2020-10-14 11:50:07,615 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 11:50:07,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2020-10-14 11:50:07,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 583. [2020-10-14 11:50:07,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2020-10-14 11:50:07,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 748 transitions. [2020-10-14 11:50:07,756 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 748 transitions. Word has length 32 [2020-10-14 11:50:07,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 11:50:07,757 INFO L479 AbstractCegarLoop]: Abstraction has 583 states and 748 transitions. [2020-10-14 11:50:07,757 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 11:50:07,757 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 748 transitions. [2020-10-14 11:50:07,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-14 11:50:07,759 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 11:50:07,759 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 11:50:07,760 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 11:50:07,760 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 11:50:07,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 11:50:07,760 INFO L82 PathProgramCache]: Analyzing trace with hash 706697067, now seen corresponding path program 1 times [2020-10-14 11:50:07,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 11:50:07,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1081780656] [2020-10-14 11:50:07,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 11:50:07,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:50:07,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:07,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:08,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:10,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:50:10,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-14 11:50:10,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 11:50:10,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2885 [2020-10-14 11:50:10,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:50:10,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:50:10,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:50:10,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 11:50:10,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 11:50:10,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:50:11,549 WARN L193 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2020-10-14 11:50:11,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 11:50:11,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:50:11,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:11,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:50:11,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:50:11,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:50:11,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 11:50:11,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:50:11,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:50:11,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:50:11,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:50:11,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:50:11,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:50:11,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 11:50:11,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:50:11,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:11,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:50:11,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:50:11,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:50:11,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 11:50:11,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:50:11,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:50:11,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:50:11,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:50:11,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:50:11,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:50:11,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 11:50:11,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:50:11,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:11,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:50:11,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:50:11,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:50:11,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 11:50:11,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:50:11,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:50:11,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:50:11,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 11:50:11,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:50:11,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:50:11,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 11:50:11,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1081780656] [2020-10-14 11:50:11,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 11:50:11,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 11:50:11,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814221286] [2020-10-14 11:50:11,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 11:50:11,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 11:50:11,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 11:50:11,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 11:50:11,738 INFO L87 Difference]: Start difference. First operand 583 states and 748 transitions. Second operand 5 states. [2020-10-14 11:50:13,019 WARN L193 SmtUtils]: Spent 700.00 ms on a formula simplification that was a NOOP. DAG size: 393 [2020-10-14 11:50:23,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 11:50:23,425 INFO L93 Difference]: Finished difference Result 1531 states and 1988 transitions. [2020-10-14 11:50:23,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 11:50:23,425 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-10-14 11:50:23,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 11:50:23,432 INFO L225 Difference]: With dead ends: 1531 [2020-10-14 11:50:23,433 INFO L226 Difference]: Without dead ends: 959 [2020-10-14 11:50:23,435 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 11:50:23,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2020-10-14 11:50:23,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 865. [2020-10-14 11:50:23,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 865 states. [2020-10-14 11:50:23,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1126 transitions. [2020-10-14 11:50:23,604 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1126 transitions. Word has length 34 [2020-10-14 11:50:23,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 11:50:23,604 INFO L479 AbstractCegarLoop]: Abstraction has 865 states and 1126 transitions. [2020-10-14 11:50:23,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 11:50:23,604 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1126 transitions. [2020-10-14 11:50:23,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-14 11:50:23,606 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 11:50:23,606 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 11:50:23,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 11:50:23,606 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 11:50:23,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 11:50:23,607 INFO L82 PathProgramCache]: Analyzing trace with hash -182034502, now seen corresponding path program 1 times [2020-10-14 11:50:23,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 11:50:23,607 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [517401486] [2020-10-14 11:50:23,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 11:50:23,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:50:23,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:23,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:23,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:24,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:25,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:50:25,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 11:50:25,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 11:50:25,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1645 [2020-10-14 11:50:25,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:50:25,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:50:25,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:50:25,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 11:50:25,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-14 11:50:25,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:50:26,133 WARN L193 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2020-10-14 11:50:26,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 11:50:26,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:50:26,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:26,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:50:26,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:50:26,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:50:26,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 11:50:26,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:50:26,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:50:26,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:50:26,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:50:26,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:50:26,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:50:26,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 11:50:26,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:50:26,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:26,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:50:26,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:50:26,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:50:26,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 11:50:26,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:50:26,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:50:26,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:50:26,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:50:26,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 11:50:26,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:50:26,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 11:50:26,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:50:26,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:26,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:50:26,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 11:50:26,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:50:26,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 11:50:26,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:50:26,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:50:26,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:50:26,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:50:26,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 11:50:26,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:50:26,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 11:50:26,371 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [517401486] [2020-10-14 11:50:26,371 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 11:50:26,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 11:50:26,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587114877] [2020-10-14 11:50:26,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 11:50:26,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 11:50:26,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 11:50:26,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 11:50:26,374 INFO L87 Difference]: Start difference. First operand 865 states and 1126 transitions. Second operand 6 states. [2020-10-14 11:50:29,069 WARN L193 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 393 [2020-10-14 11:50:36,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 11:50:36,345 INFO L93 Difference]: Finished difference Result 920 states and 1202 transitions. [2020-10-14 11:50:36,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 11:50:36,346 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-10-14 11:50:36,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 11:50:36,352 INFO L225 Difference]: With dead ends: 920 [2020-10-14 11:50:36,352 INFO L226 Difference]: Without dead ends: 917 [2020-10-14 11:50:36,353 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 11:50:36,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2020-10-14 11:50:36,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 864. [2020-10-14 11:50:36,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 864 states. [2020-10-14 11:50:36,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1124 transitions. [2020-10-14 11:50:36,540 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1124 transitions. Word has length 33 [2020-10-14 11:50:36,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 11:50:36,542 INFO L479 AbstractCegarLoop]: Abstraction has 864 states and 1124 transitions. [2020-10-14 11:50:36,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 11:50:36,542 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1124 transitions. [2020-10-14 11:50:36,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-14 11:50:36,544 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 11:50:36,544 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 11:50:36,544 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 11:50:36,544 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 11:50:36,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 11:50:36,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1348487867, now seen corresponding path program 1 times [2020-10-14 11:50:36,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 11:50:36,545 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [76548322] [2020-10-14 11:50:36,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 11:50:36,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:50:36,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:36,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:36,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:36,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:38,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:50:38,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-14 11:50:38,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 11:50:38,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1614 [2020-10-14 11:50:38,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:50:38,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:50:38,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:50:38,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 11:50:38,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 11:50:38,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:50:38,998 WARN L193 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2020-10-14 11:50:39,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 11:50:39,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:50:39,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:39,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:50:39,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:50:39,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:50:39,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 11:50:39,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:50:39,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:50:39,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:50:39,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:50:39,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:50:39,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:50:39,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 11:50:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:50:39,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:39,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:50:39,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:50:39,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:50:39,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 11:50:39,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:50:39,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:50:39,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:50:39,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:50:39,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 11:50:39,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:50:39,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 11:50:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:50:39,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:39,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:50:39,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 11:50:39,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:50:39,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 11:50:39,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:50:39,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:50:39,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:50:39,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:50:39,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 11:50:39,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:50:39,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 11:50:39,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [76548322] [2020-10-14 11:50:39,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 11:50:39,211 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 11:50:39,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059385860] [2020-10-14 11:50:39,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 11:50:39,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 11:50:39,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 11:50:39,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 11:50:39,212 INFO L87 Difference]: Start difference. First operand 864 states and 1124 transitions. Second operand 6 states. [2020-10-14 11:50:41,422 WARN L193 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 393 [2020-10-14 11:50:53,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 11:50:53,312 INFO L93 Difference]: Finished difference Result 1128 states and 1463 transitions. [2020-10-14 11:50:53,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 11:50:53,313 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2020-10-14 11:50:53,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 11:50:53,320 INFO L225 Difference]: With dead ends: 1128 [2020-10-14 11:50:53,320 INFO L226 Difference]: Without dead ends: 1094 [2020-10-14 11:50:53,321 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 11:50:53,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2020-10-14 11:50:53,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 1033. [2020-10-14 11:50:53,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1033 states. [2020-10-14 11:50:53,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1334 transitions. [2020-10-14 11:50:53,501 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1334 transitions. Word has length 34 [2020-10-14 11:50:53,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 11:50:53,501 INFO L479 AbstractCegarLoop]: Abstraction has 1033 states and 1334 transitions. [2020-10-14 11:50:53,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 11:50:53,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1334 transitions. [2020-10-14 11:50:53,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-14 11:50:53,505 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 11:50:53,505 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 11:50:53,506 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 11:50:53,506 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 11:50:53,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 11:50:53,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1866187166, now seen corresponding path program 1 times [2020-10-14 11:50:53,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 11:50:53,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1199635100] [2020-10-14 11:50:53,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 11:50:53,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:50:53,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:53,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:53,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:53,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:53,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:54,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:58,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:50:58,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 11:50:58,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 11:50:58,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5050 [2020-10-14 11:50:58,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:50:58,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:50:58,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:50:58,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-14 11:50:58,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 11:50:58,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:50:59,486 WARN L193 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2020-10-14 11:50:59,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 11:50:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:50:59,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:59,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:50:59,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:50:59,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:50:59,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 11:50:59,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:50:59,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:50:59,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:50:59,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:50:59,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:50:59,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:50:59,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 11:50:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:50:59,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:59,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:50:59,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:50:59,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:50:59,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 11:50:59,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:50:59,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:50:59,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:50:59,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:50:59,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:50:59,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:50:59,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 11:50:59,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:50:59,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:59,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:59,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:59,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:59,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:50:59,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 11:50:59,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 11:50:59,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-14 11:50:59,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:50:59,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:50:59,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:50:59,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 11:50:59,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 11:50:59,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:50:59,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 11:50:59,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:50:59,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:59,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:59,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:50:59,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 11:50:59,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 11:50:59,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 11:50:59,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:50:59,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:50:59,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:50:59,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 11:50:59,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 11:50:59,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:50:59,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-14 11:50:59,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:50:59,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:59,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:59,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:50:59,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 11:50:59,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 11:50:59,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 11:50:59,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:50:59,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:50:59,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:50:59,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 11:50:59,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 11:50:59,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:50:59,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 11:50:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:50:59,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:59,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:50:59,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 11:50:59,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:50:59,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 11:50:59,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:50:59,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:50:59,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:50:59,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 11:50:59,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:50:59,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:50:59,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 11:50:59,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:50:59,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:59,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:50:59,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 11:50:59,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:50:59,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 11:50:59,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:50:59,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:50:59,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:50:59,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:50:59,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:50:59,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:50:59,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 11:50:59,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:50:59,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:50:59,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:50:59,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:50:59,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:50:59,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 11:50:59,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:50:59,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:50:59,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:50:59,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:50:59,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:50:59,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:51:00,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 11:51:00,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:51:00,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:00,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:51:00,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:51:00,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:51:00,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 11:51:00,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:51:00,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:51:00,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:51:00,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 11:51:00,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:51:00,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:51:00,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 11:51:00,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:51:00,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:00,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:51:00,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 11:51:00,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:51:00,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 11:51:00,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:51:00,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:51:00,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:51:00,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 11:51:00,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:51:00,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:51:00,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 11:51:00,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:51:00,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:00,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:51:00,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 11:51:00,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:51:00,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 11:51:00,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:51:00,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:51:00,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:51:00,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:51:00,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:51:00,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:51:00,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-14 11:51:00,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:51:00,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:00,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:51:00,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:51:00,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:51:00,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 11:51:00,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:51:00,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:51:00,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:51:00,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:51:00,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:51:00,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:51:00,086 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 11:51:00,086 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1199635100] [2020-10-14 11:51:00,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 11:51:00,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 11:51:00,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235242612] [2020-10-14 11:51:00,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 11:51:00,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 11:51:00,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 11:51:00,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-14 11:51:00,088 INFO L87 Difference]: Start difference. First operand 1033 states and 1334 transitions. Second operand 12 states. [2020-10-14 11:51:04,574 WARN L193 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 393 [2020-10-14 11:51:05,597 WARN L193 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 395 [2020-10-14 11:51:06,702 WARN L193 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 394 [2020-10-14 11:51:24,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 11:51:24,214 INFO L93 Difference]: Finished difference Result 3011 states and 3953 transitions. [2020-10-14 11:51:24,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-14 11:51:24,215 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2020-10-14 11:51:24,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 11:51:24,226 INFO L225 Difference]: With dead ends: 3011 [2020-10-14 11:51:24,227 INFO L226 Difference]: Without dead ends: 1989 [2020-10-14 11:51:24,232 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=236, Invalid=820, Unknown=0, NotChecked=0, Total=1056 [2020-10-14 11:51:24,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1989 states. [2020-10-14 11:51:24,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1989 to 1751. [2020-10-14 11:51:24,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1751 states. [2020-10-14 11:51:24,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1751 states to 1751 states and 2251 transitions. [2020-10-14 11:51:24,834 INFO L78 Accepts]: Start accepts. Automaton has 1751 states and 2251 transitions. Word has length 97 [2020-10-14 11:51:24,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 11:51:24,834 INFO L479 AbstractCegarLoop]: Abstraction has 1751 states and 2251 transitions. [2020-10-14 11:51:24,835 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 11:51:24,835 INFO L276 IsEmpty]: Start isEmpty. Operand 1751 states and 2251 transitions. [2020-10-14 11:51:24,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-14 11:51:24,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 11:51:24,844 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 11:51:24,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 11:51:24,844 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 11:51:24,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 11:51:24,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1961752068, now seen corresponding path program 1 times [2020-10-14 11:51:24,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 11:51:24,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1845336452] [2020-10-14 11:51:24,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 11:51:24,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:51:25,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:25,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:25,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:25,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:29,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:29,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:30,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:51:30,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 11:51:30,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 11:51:30,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5074 [2020-10-14 11:51:30,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:51:30,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:51:30,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:51:30,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-14 11:51:30,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 11:51:30,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:51:31,043 WARN L193 SmtUtils]: Spent 966.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2020-10-14 11:51:31,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 11:51:31,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:51:31,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:31,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:51:31,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:51:31,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:51:31,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 11:51:31,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:51:31,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:51:31,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:51:31,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:51:31,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:51:31,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:51:31,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 11:51:31,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:51:31,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:31,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:51:31,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:51:31,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:51:31,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 11:51:31,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:51:31,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:51:31,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:51:31,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:51:31,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:51:31,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:51:31,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 11:51:31,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:51:31,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:31,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:31,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:31,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:51:31,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-14 11:51:31,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 11:51:31,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 378 [2020-10-14 11:51:31,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:51:31,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:51:31,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:51:31,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-14 11:51:31,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 11:51:31,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:51:31,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 11:51:31,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:51:31,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:31,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:31,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:51:31,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 11:51:31,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 11:51:31,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 11:51:31,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:51:31,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:51:31,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:51:31,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:51:31,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:51:31,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:51:31,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 11:51:31,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:51:31,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:31,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:51:31,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:51:31,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:51:31,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 11:51:31,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:51:31,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:51:31,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:51:31,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:51:31,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:51:31,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:51:31,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 11:51:31,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:51:31,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:31,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:51:31,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 11:51:31,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:51:31,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 11:51:31,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:51:31,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:51:31,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:51:31,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 11:51:31,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 11:51:31,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:51:31,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 11:51:31,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:51:31,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:31,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:51:31,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 11:51:31,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:51:31,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 11:51:31,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:51:31,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:51:31,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:51:31,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 11:51:31,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:51:31,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:51:31,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 11:51:31,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:51:31,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:31,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:51:31,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 11:51:31,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:51:31,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 11:51:31,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:51:31,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:51:31,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:51:31,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:51:31,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:51:31,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:51:31,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 11:51:31,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:51:31,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:31,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:51:31,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:51:31,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:51:31,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 11:51:31,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:51:31,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:51:31,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:51:31,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:51:31,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:51:31,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:51:31,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 11:51:31,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:51:31,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:31,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:51:31,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:51:31,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:51:31,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 11:51:31,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:51:31,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:51:31,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:51:31,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 11:51:31,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:51:31,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:51:31,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 11:51:31,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:51:31,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:31,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:51:31,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 11:51:31,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:51:31,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 11:51:31,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:51:31,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:51:31,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:51:31,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 11:51:31,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:51:31,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:51:31,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 11:51:31,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:51:31,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:31,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:51:31,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 11:51:31,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:51:31,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 11:51:31,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:51:31,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:51:31,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:51:31,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:51:31,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:51:31,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:51:31,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-14 11:51:31,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:51:31,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:31,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:51:31,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:51:31,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:51:31,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 11:51:31,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:51:31,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:51:31,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:51:31,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:51:31,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:51:31,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:51:31,959 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 11:51:31,960 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1845336452] [2020-10-14 11:51:31,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 11:51:32,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 11:51:32,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803355885] [2020-10-14 11:51:32,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 11:51:32,018 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 11:51:32,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 11:51:32,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-14 11:51:32,018 INFO L87 Difference]: Start difference. First operand 1751 states and 2251 transitions. Second operand 10 states. [2020-10-14 11:51:37,676 WARN L193 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 394 [2020-10-14 11:51:46,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 11:51:46,326 INFO L93 Difference]: Finished difference Result 3679 states and 4802 transitions. [2020-10-14 11:51:46,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 11:51:46,326 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 106 [2020-10-14 11:51:46,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 11:51:46,338 INFO L225 Difference]: With dead ends: 3679 [2020-10-14 11:51:46,338 INFO L226 Difference]: Without dead ends: 1939 [2020-10-14 11:51:46,346 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2020-10-14 11:51:46,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1939 states. [2020-10-14 11:51:46,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1939 to 1777. [2020-10-14 11:51:46,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1777 states. [2020-10-14 11:51:46,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1777 states to 1777 states and 2289 transitions. [2020-10-14 11:51:46,846 INFO L78 Accepts]: Start accepts. Automaton has 1777 states and 2289 transitions. Word has length 106 [2020-10-14 11:51:46,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 11:51:46,847 INFO L479 AbstractCegarLoop]: Abstraction has 1777 states and 2289 transitions. [2020-10-14 11:51:46,847 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 11:51:46,847 INFO L276 IsEmpty]: Start isEmpty. Operand 1777 states and 2289 transitions. [2020-10-14 11:51:46,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-14 11:51:46,852 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 11:51:46,852 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 11:51:46,853 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 11:51:46,853 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 11:51:46,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 11:51:46,854 INFO L82 PathProgramCache]: Analyzing trace with hash 662701659, now seen corresponding path program 1 times [2020-10-14 11:51:46,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 11:51:46,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [144859907] [2020-10-14 11:51:46,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 11:51:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:51:46,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:47,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:47,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:47,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:49,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:50,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:51,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:51:51,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 11:51:51,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 11:51:51,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5069 [2020-10-14 11:51:51,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:51:51,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:51:51,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:51:51,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 11:51:51,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 11:51:51,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:51:52,814 WARN L193 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2020-10-14 11:51:52,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 11:51:52,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:51:52,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:52,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:51:52,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:51:52,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:51:52,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 11:51:52,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:51:52,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:51:52,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:51:52,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:51:52,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:51:52,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:51:52,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 11:51:52,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:51:52,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:52,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:51:52,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:51:52,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:51:52,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 11:51:52,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:51:52,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:51:52,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:51:52,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:51:52,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:51:52,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:51:52,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 11:51:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:51:53,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:53,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:53,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:53,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:51:53,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-14 11:51:53,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 11:51:53,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 529 [2020-10-14 11:51:53,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:51:53,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:51:53,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:51:53,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-14 11:51:53,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 11:51:53,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:51:53,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 11:51:53,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:51:53,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:53,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:53,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:51:53,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 11:51:53,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 11:51:53,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 11:51:53,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:51:53,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:51:53,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:51:53,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:51:53,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:51:53,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:51:53,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 11:51:53,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:51:53,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:53,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:51:53,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:51:53,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:51:53,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 11:51:53,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:51:53,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:51:53,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:51:53,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:51:53,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:51:53,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:51:53,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 11:51:53,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:51:53,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:53,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:51:53,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 11:51:53,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:51:53,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 11:51:53,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:51:53,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:51:53,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:51:53,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:51:53,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:51:53,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:51:53,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 11:51:53,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:51:53,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:53,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:51:53,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 11:51:53,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:51:53,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 11:51:53,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:51:53,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:51:53,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:51:53,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:51:53,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:51:53,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:51:53,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 11:51:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:51:53,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:53,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:51:53,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 11:51:53,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:51:53,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 11:51:53,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:51:53,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:51:53,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:51:53,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:51:53,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:51:53,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:51:53,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 11:51:53,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:51:53,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:53,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:51:53,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:51:53,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:51:53,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 11:51:53,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:51:53,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:51:53,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:51:53,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:51:53,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:51:53,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:51:53,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 11:51:53,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:51:53,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:53,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:51:53,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:51:53,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:51:53,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 11:51:53,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:51:53,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:51:53,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:51:53,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 11:51:53,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:51:53,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:51:53,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 11:51:53,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:51:53,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:53,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:51:53,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 11:51:53,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:51:53,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 11:51:53,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:51:53,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:51:53,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:51:53,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 11:51:53,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:51:53,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:51:53,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 11:51:53,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:51:53,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:53,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:51:53,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 11:51:53,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:51:53,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 11:51:53,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:51:53,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:51:53,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:51:53,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:51:53,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:51:53,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:51:53,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-14 11:51:53,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:51:53,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:51:53,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:51:53,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:51:53,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:51:53,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 11:51:53,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:51:53,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:51:53,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:51:53,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:51:53,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:51:53,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:51:53,880 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 11:51:53,881 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [144859907] [2020-10-14 11:51:53,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 11:51:53,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 11:51:53,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20001416] [2020-10-14 11:51:53,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 11:51:53,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 11:51:53,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 11:51:53,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-14 11:51:53,885 INFO L87 Difference]: Start difference. First operand 1777 states and 2289 transitions. Second operand 10 states. [2020-10-14 11:52:10,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 11:52:10,355 INFO L93 Difference]: Finished difference Result 3721 states and 4838 transitions. [2020-10-14 11:52:10,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 11:52:10,356 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 106 [2020-10-14 11:52:10,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 11:52:10,366 INFO L225 Difference]: With dead ends: 3721 [2020-10-14 11:52:10,367 INFO L226 Difference]: Without dead ends: 1955 [2020-10-14 11:52:10,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-10-14 11:52:10,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1955 states. [2020-10-14 11:52:10,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1955 to 1781. [2020-10-14 11:52:10,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1781 states. [2020-10-14 11:52:10,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1781 states to 1781 states and 2293 transitions. [2020-10-14 11:52:10,760 INFO L78 Accepts]: Start accepts. Automaton has 1781 states and 2293 transitions. Word has length 106 [2020-10-14 11:52:10,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 11:52:10,760 INFO L479 AbstractCegarLoop]: Abstraction has 1781 states and 2293 transitions. [2020-10-14 11:52:10,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 11:52:10,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1781 states and 2293 transitions. [2020-10-14 11:52:10,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-14 11:52:10,765 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 11:52:10,765 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 11:52:10,767 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 11:52:10,767 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 11:52:10,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 11:52:10,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1060390662, now seen corresponding path program 1 times [2020-10-14 11:52:10,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 11:52:10,768 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1771203675] [2020-10-14 11:52:10,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 11:52:10,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:52:10,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:10,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:11,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:11,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:13,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:13,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:15,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:52:15,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-14 11:52:15,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 11:52:15,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-14 11:52:15,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:52:15,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:52:15,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 11:52:15,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-14 11:52:15,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 11:52:15,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:52:16,679 WARN L193 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2020-10-14 11:52:16,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 11:52:16,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:52:16,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:16,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:52:16,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:52:16,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:52:16,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 11:52:16,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:52:16,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:52:16,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:52:16,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:52:16,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:52:16,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:52:16,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 11:52:16,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:52:16,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:16,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:52:16,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:52:16,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:52:16,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 11:52:16,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:52:16,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:52:16,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:52:16,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:52:16,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:52:16,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:52:16,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 11:52:16,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:52:16,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:16,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:16,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:17,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:52:17,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 11:52:17,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 11:52:17,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 770 [2020-10-14 11:52:17,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:52:17,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:52:17,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 11:52:17,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 11:52:17,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 11:52:17,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:52:17,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 11:52:17,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:52:17,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:17,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:52:17,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 11:52:17,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:52:17,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 11:52:17,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:52:17,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:52:17,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 11:52:17,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 11:52:17,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 11:52:17,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:52:17,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 11:52:17,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:52:17,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:17,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:52:17,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:52:17,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:52:17,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 11:52:17,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:52:17,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:52:17,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:52:17,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:52:17,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 11:52:17,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:52:17,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 11:52:17,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:52:17,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:17,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:52:17,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 11:52:17,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:52:17,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 11:52:17,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:52:17,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:52:17,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:52:17,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 11:52:17,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:52:17,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:52:17,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 11:52:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:52:17,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:17,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:52:17,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 11:52:17,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:52:17,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 11:52:17,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:52:17,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:52:17,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:52:17,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 11:52:17,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:52:17,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:52:17,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 11:52:17,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:52:17,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:17,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:52:17,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 11:52:17,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:52:17,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 11:52:17,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:52:17,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:52:17,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:52:17,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:52:17,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:52:17,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:52:17,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 11:52:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:52:17,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:17,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:52:17,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:52:17,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:52:17,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 11:52:17,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:52:17,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:52:17,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:52:17,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:52:17,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:52:17,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:52:17,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 11:52:17,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:52:17,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:17,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:52:17,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:52:17,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:52:17,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 11:52:17,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:52:17,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:52:17,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:52:17,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 11:52:17,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:52:17,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:52:17,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 11:52:17,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:52:17,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:17,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:52:17,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 11:52:17,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:52:17,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 11:52:17,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:52:17,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:52:17,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:52:17,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 11:52:17,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:52:17,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:52:17,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 11:52:17,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:52:17,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:17,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:52:17,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 11:52:17,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:52:17,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 11:52:17,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:52:17,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:52:17,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:52:17,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:52:17,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:52:17,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:52:17,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-14 11:52:17,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:52:17,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:17,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:52:17,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:52:17,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:52:17,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 11:52:17,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:52:17,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:52:17,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:52:17,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:52:17,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:52:17,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:52:17,888 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 11:52:17,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1771203675] [2020-10-14 11:52:17,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 11:52:17,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 11:52:17,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225433032] [2020-10-14 11:52:17,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 11:52:17,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 11:52:17,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 11:52:17,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-14 11:52:17,891 INFO L87 Difference]: Start difference. First operand 1781 states and 2293 transitions. Second operand 11 states. [2020-10-14 11:52:30,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 11:52:30,359 INFO L93 Difference]: Finished difference Result 3745 states and 4884 transitions. [2020-10-14 11:52:30,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 11:52:30,360 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 110 [2020-10-14 11:52:30,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 11:52:30,370 INFO L225 Difference]: With dead ends: 3745 [2020-10-14 11:52:30,370 INFO L226 Difference]: Without dead ends: 1975 [2020-10-14 11:52:30,378 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2020-10-14 11:52:30,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2020-10-14 11:52:30,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1797. [2020-10-14 11:52:30,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1797 states. [2020-10-14 11:52:30,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1797 states to 1797 states and 2313 transitions. [2020-10-14 11:52:30,775 INFO L78 Accepts]: Start accepts. Automaton has 1797 states and 2313 transitions. Word has length 110 [2020-10-14 11:52:30,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 11:52:30,775 INFO L479 AbstractCegarLoop]: Abstraction has 1797 states and 2313 transitions. [2020-10-14 11:52:30,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 11:52:30,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1797 states and 2313 transitions. [2020-10-14 11:52:30,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-14 11:52:30,779 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 11:52:30,780 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 11:52:30,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 11:52:30,780 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 11:52:30,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 11:52:30,781 INFO L82 PathProgramCache]: Analyzing trace with hash -397171284, now seen corresponding path program 2 times [2020-10-14 11:52:30,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 11:52:30,782 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [734713807] [2020-10-14 11:52:30,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 11:52:30,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:52:30,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:30,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:31,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:31,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:32,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:35,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:35,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:35,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:52:35,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-14 11:52:35,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 11:52:35,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-14 11:52:35,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:52:35,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:52:35,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 11:52:35,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-14 11:52:35,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 11:52:35,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:52:36,764 WARN L193 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2020-10-14 11:52:36,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 11:52:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:52:36,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:36,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:52:36,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:52:36,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:52:36,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 11:52:36,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:52:36,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:52:36,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:52:36,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:52:36,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:52:36,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:52:36,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 11:52:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:52:36,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:36,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:52:36,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:52:36,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:52:36,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 11:52:36,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:52:36,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:52:36,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:52:36,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:52:36,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:52:36,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:52:36,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 11:52:36,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:52:36,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:36,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:37,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:37,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:52:37,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 11:52:37,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 11:52:37,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 768 [2020-10-14 11:52:37,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:52:37,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:52:37,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 11:52:37,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 11:52:37,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 11:52:37,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:52:37,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 11:52:37,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:52:37,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:37,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:52:37,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 11:52:37,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:52:37,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 11:52:37,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:52:37,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:52:37,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 11:52:37,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 11:52:37,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 11:52:37,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:52:37,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 11:52:37,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:52:37,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:37,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:52:37,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:52:37,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:52:37,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 11:52:37,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:52:37,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:52:37,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:52:37,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:52:37,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 11:52:37,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:52:37,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 11:52:37,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:52:37,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:37,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:52:37,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:52:37,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:52:37,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 11:52:37,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:52:37,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:52:37,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:52:37,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:52:37,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 11:52:37,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:52:37,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-14 11:52:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:52:37,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:37,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:52:37,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 11:52:37,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:52:37,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 11:52:37,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:52:37,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:52:37,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:52:37,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 11:52:37,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:52:37,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:52:37,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 11:52:37,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:52:37,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:37,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:52:37,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 11:52:37,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:52:37,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 11:52:37,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:52:37,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:52:37,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:52:37,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 11:52:37,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:52:37,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:52:37,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 11:52:37,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:52:37,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:37,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:52:37,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 11:52:37,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:52:37,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 11:52:37,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:52:37,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:52:37,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:52:37,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:52:37,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:52:37,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:52:37,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 11:52:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:52:37,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:37,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:52:37,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:52:37,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:52:37,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 11:52:37,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:52:37,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:52:37,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:52:37,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:52:37,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:52:37,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:52:37,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 11:52:37,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:52:37,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:37,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:52:37,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:52:37,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:52:37,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 11:52:37,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:52:37,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:52:37,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:52:37,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 11:52:37,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:52:37,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:52:37,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 11:52:37,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:52:37,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:37,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:52:37,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 11:52:37,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:52:37,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 11:52:37,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:52:37,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:52:37,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:52:37,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 11:52:37,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:52:37,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:52:37,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 11:52:37,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:52:37,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:37,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:52:37,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 11:52:37,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:52:37,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 11:52:37,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:52:37,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:52:37,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:52:37,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:52:37,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:52:37,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:52:37,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-14 11:52:37,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:52:37,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:37,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:52:37,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:52:37,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:52:37,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 11:52:37,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:52:37,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:52:37,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:52:37,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:52:37,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:52:37,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:52:38,014 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 11:52:38,015 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [734713807] [2020-10-14 11:52:38,015 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 11:52:38,015 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 11:52:38,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556478052] [2020-10-14 11:52:38,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 11:52:38,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 11:52:38,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 11:52:38,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-14 11:52:38,016 INFO L87 Difference]: Start difference. First operand 1797 states and 2313 transitions. Second operand 12 states. [2020-10-14 11:52:55,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 11:52:55,327 INFO L93 Difference]: Finished difference Result 3797 states and 4956 transitions. [2020-10-14 11:52:55,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 11:52:55,327 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 119 [2020-10-14 11:52:55,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 11:52:55,336 INFO L225 Difference]: With dead ends: 3797 [2020-10-14 11:52:55,336 INFO L226 Difference]: Without dead ends: 2011 [2020-10-14 11:52:55,341 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2020-10-14 11:52:55,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2011 states. [2020-10-14 11:52:55,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2011 to 1825. [2020-10-14 11:52:55,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1825 states. [2020-10-14 11:52:55,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1825 states to 1825 states and 2349 transitions. [2020-10-14 11:52:55,595 INFO L78 Accepts]: Start accepts. Automaton has 1825 states and 2349 transitions. Word has length 119 [2020-10-14 11:52:55,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 11:52:55,595 INFO L479 AbstractCegarLoop]: Abstraction has 1825 states and 2349 transitions. [2020-10-14 11:52:55,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 11:52:55,596 INFO L276 IsEmpty]: Start isEmpty. Operand 1825 states and 2349 transitions. [2020-10-14 11:52:55,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-14 11:52:55,600 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 11:52:55,600 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 11:52:55,600 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 11:52:55,600 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 11:52:55,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 11:52:55,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1899848134, now seen corresponding path program 3 times [2020-10-14 11:52:55,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 11:52:55,601 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [232652314] [2020-10-14 11:52:55,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 11:52:55,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:52:55,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:55,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:55,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:55,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:56,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:52:59,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:53:00,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:53:01,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:53:01,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-14 11:53:01,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 11:53:01,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5528 [2020-10-14 11:53:01,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:53:01,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:53:01,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 11:53:01,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-10-14 11:53:01,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 11:53:01,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:53:01,992 WARN L193 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2020-10-14 11:53:01,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 11:53:02,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:53:02,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:53:02,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:53:02,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:53:02,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:53:02,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 11:53:02,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:53:02,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:53:02,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:53:02,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:53:02,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:53:02,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:53:02,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 11:53:02,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:53:02,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:53:02,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:53:02,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:53:02,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:53:02,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 11:53:02,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:53:02,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:53:02,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:53:02,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:53:02,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:53:02,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:53:02,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 11:53:02,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:53:02,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:53:02,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:53:02,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:53:03,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:53:03,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 11:53:03,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 11:53:03,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1470 [2020-10-14 11:53:03,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:53:03,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:53:03,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 11:53:03,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-14 11:53:03,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 11:53:03,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:53:03,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 11:53:03,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:53:03,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:53:03,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:53:03,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:53:03,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 11:53:03,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 11:53:03,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-10-14 11:53:03,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:53:03,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:53:03,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:53:03,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:53:03,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:53:03,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:53:03,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 11:53:03,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:53:03,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:53:03,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:53:03,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:53:03,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:53:03,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 11:53:03,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:53:03,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:53:03,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:53:03,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:53:03,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:53:03,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:53:03,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 11:53:03,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:53:03,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:53:03,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:53:03,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:53:03,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:53:03,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 11:53:03,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:53:03,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:53:03,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:53:03,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:53:03,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:53:03,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:53:03,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 11:53:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:53:03,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:53:03,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:53:03,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:53:03,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:53:03,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 11:53:03,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:53:03,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:53:03,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:53:03,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:53:03,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:53:03,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:53:03,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 11:53:03,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:53:03,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:53:03,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:53:03,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 11:53:03,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:53:03,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 11:53:03,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:53:03,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:53:03,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:53:03,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:53:03,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:53:03,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:53:03,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 11:53:03,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:53:03,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:53:03,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:53:03,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 11:53:03,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:53:03,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 11:53:03,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:53:04,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:53:04,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:53:04,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:53:04,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:53:04,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:53:04,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 11:53:04,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:53:04,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:53:04,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:53:04,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 11:53:04,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:53:04,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 11:53:04,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:53:04,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:53:04,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:53:04,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:53:04,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:53:04,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:53:04,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 11:53:04,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:53:04,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:53:04,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:53:04,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:53:04,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:53:04,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 11:53:04,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:53:04,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:53:04,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:53:04,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:53:04,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:53:04,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:53:04,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 11:53:04,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:53:04,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:53:04,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:53:04,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:53:04,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:53:04,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 11:53:04,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:53:04,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:53:04,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:53:04,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 11:53:04,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:53:04,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:53:04,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-14 11:53:04,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:53:04,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:53:04,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:53:04,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 11:53:04,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:53:04,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 11:53:04,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:53:04,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:53:04,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:53:04,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 11:53:04,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:53:04,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:53:04,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 11:53:04,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:53:04,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:53:04,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:53:04,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 11:53:04,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:53:04,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 11:53:04,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:53:04,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:53:04,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:53:04,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:53:04,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:53:04,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:53:04,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-14 11:53:04,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:53:04,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:53:04,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:53:04,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:53:04,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:53:04,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 11:53:04,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:53:04,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:53:04,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:53:04,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:53:04,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:53:04,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:53:04,081 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-14 11:53:04,082 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [232652314] [2020-10-14 11:53:04,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 11:53:04,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 11:53:04,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625000780] [2020-10-14 11:53:04,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 11:53:04,083 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 11:53:04,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 11:53:04,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-14 11:53:04,084 INFO L87 Difference]: Start difference. First operand 1825 states and 2349 transitions. Second operand 11 states.