/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ddv-machzwd/ddv_machzwd_inw.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 18:35:19,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 18:35:19,183 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 18:35:19,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 18:35:19,221 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 18:35:19,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 18:35:19,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 18:35:19,232 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 18:35:19,235 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 18:35:19,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 18:35:19,238 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 18:35:19,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 18:35:19,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 18:35:19,243 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 18:35:19,245 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 18:35:19,247 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 18:35:19,248 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 18:35:19,249 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 18:35:19,251 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 18:35:19,258 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 18:35:19,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 18:35:19,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 18:35:19,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 18:35:19,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 18:35:19,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 18:35:19,274 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 18:35:19,274 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 18:35:19,275 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 18:35:19,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 18:35:19,279 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 18:35:19,279 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 18:35:19,279 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 18:35:19,282 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 18:35:19,283 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 18:35:19,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 18:35:19,284 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 18:35:19,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 18:35:19,288 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 18:35:19,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 18:35:19,289 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 18:35:19,290 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 18:35:19,293 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 18:35:19,316 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 18:35:19,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 18:35:19,317 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 18:35:19,317 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 18:35:19,318 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 18:35:19,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 18:35:19,318 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 18:35:19,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 18:35:19,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 18:35:19,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 18:35:19,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 18:35:19,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 18:35:19,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 18:35:19,319 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 18:35:19,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 18:35:19,320 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 18:35:19,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 18:35:19,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 18:35:19,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 18:35:19,320 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 18:35:19,321 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 18:35:19,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 18:35:19,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 18:35:19,321 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 18:35:19,321 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 18:35:19,322 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 18:35:19,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 18:35:19,322 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 18:35:19,322 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 18:35:19,322 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 18:35:19,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 18:35:19,641 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 18:35:19,645 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 18:35:19,647 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 18:35:19,647 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 18:35:19,648 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ddv-machzwd/ddv_machzwd_inw.i [2020-10-14 18:35:19,708 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/27e1a6a7b/fa6cc5b9e0ed4de88a9bc583d71ed5f5/FLAG5057467c5 [2020-10-14 18:35:20,406 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 18:35:20,406 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ddv-machzwd/ddv_machzwd_inw.i [2020-10-14 18:35:20,431 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/27e1a6a7b/fa6cc5b9e0ed4de88a9bc583d71ed5f5/FLAG5057467c5 [2020-10-14 18:35:20,565 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/27e1a6a7b/fa6cc5b9e0ed4de88a9bc583d71ed5f5 [2020-10-14 18:35:20,573 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 18:35:20,575 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 18:35:20,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 18:35:20,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 18:35:20,580 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 18:35:20,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:35:20" (1/1) ... [2020-10-14 18:35:20,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b25a360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:35:20, skipping insertion in model container [2020-10-14 18:35:20,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:35:20" (1/1) ... [2020-10-14 18:35:20,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 18:35:20,684 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 18:35:21,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 18:35:21,984 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 18:35:22,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 18:35:22,767 INFO L208 MainTranslator]: Completed translation [2020-10-14 18:35:22,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:35:22 WrapperNode [2020-10-14 18:35:22,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 18:35:22,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 18:35:22,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 18:35:22,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 18:35:22,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:35:22" (1/1) ... [2020-10-14 18:35:22,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:35:22" (1/1) ... [2020-10-14 18:35:22,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:35:22" (1/1) ... [2020-10-14 18:35:22,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:35:22" (1/1) ... [2020-10-14 18:35:23,011 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:35:22" (1/1) ... [2020-10-14 18:35:23,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:35:22" (1/1) ... [2020-10-14 18:35:23,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:35:22" (1/1) ... [2020-10-14 18:35:23,117 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 18:35:23,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 18:35:23,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 18:35:23,118 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 18:35:23,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:35:22" (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 18:35:23,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 18:35:23,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 18:35:23,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~int [2020-10-14 18:35:23,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2020-10-14 18:35:23,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~loff_t~0~X~int~TO~~loff_t~0 [2020-10-14 18:35:23,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2020-10-14 18:35:23,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2020-10-14 18:35:23,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-10-14 18:35:23,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-14 18:35:23,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-10-14 18:35:23,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~X~$Pointer$~TO~~irqreturn_t~0 [2020-10-14 18:35:23,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2020-10-14 18:35:23,218 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 18:35:23,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-14 18:35:23,220 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2020-10-14 18:35:23,223 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_interrupt [2020-10-14 18:35:23,223 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2020-10-14 18:35:23,223 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_usecs [2020-10-14 18:35:23,224 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2020-10-14 18:35:23,224 INFO L138 BoogieDeclarations]: Found implementation of procedure usecs_to_jiffies [2020-10-14 18:35:23,224 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-10-14 18:35:23,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-10-14 18:35:23,226 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-10-14 18:35:23,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2020-10-14 18:35:23,227 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2020-10-14 18:35:23,228 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2020-10-14 18:35:23,228 INFO L138 BoogieDeclarations]: Found implementation of procedure pthread_mutex_init [2020-10-14 18:35:23,228 INFO L138 BoogieDeclarations]: Found implementation of procedure pthread_mutex_destroy [2020-10-14 18:35:23,228 INFO L138 BoogieDeclarations]: Found implementation of procedure pthread_mutex_lock [2020-10-14 18:35:23,229 INFO L138 BoogieDeclarations]: Found implementation of procedure pthread_mutex_unlock [2020-10-14 18:35:23,229 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2020-10-14 18:35:23,229 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2020-10-14 18:35:23,229 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2020-10-14 18:35:23,229 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2020-10-14 18:35:23,230 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2020-10-14 18:35:23,230 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc_and_test [2020-10-14 18:35:23,230 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_negative [2020-10-14 18:35:23,233 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2020-10-14 18:35:23,233 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub_return [2020-10-14 18:35:23,233 INFO L138 BoogieDeclarations]: Found implementation of procedure sigfillset [2020-10-14 18:35:23,233 INFO L138 BoogieDeclarations]: Found implementation of procedure sigaddsetmask [2020-10-14 18:35:23,234 INFO L138 BoogieDeclarations]: Found implementation of procedure sigdelsetmask [2020-10-14 18:35:23,234 INFO L138 BoogieDeclarations]: Found implementation of procedure sigtestsetmask [2020-10-14 18:35:23,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2020-10-14 18:35:23,236 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-10-14 18:35:23,236 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-14 18:35:23,237 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2020-10-14 18:35:23,237 INFO L138 BoogieDeclarations]: Found implementation of procedure imajor [2020-10-14 18:35:23,238 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2020-10-14 18:35:23,238 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_status [2020-10-14 18:35:23,239 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2020-10-14 18:35:23,239 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2020-10-14 18:35:23,239 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_timer [2020-10-14 18:35:23,239 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2020-10-14 18:35:23,240 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_on [2020-10-14 18:35:23,240 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2020-10-14 18:35:23,240 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_write [2020-10-14 18:35:23,240 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ioctl [2020-10-14 18:35:23,240 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_open [2020-10-14 18:35:23,241 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_close [2020-10-14 18:35:23,241 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_notify_sys [2020-10-14 18:35:23,241 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_show_action [2020-10-14 18:35:23,241 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_init [2020-10-14 18:35:23,241 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_exit [2020-10-14 18:35:23,241 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 18:35:23,242 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-14 18:35:23,242 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-14 18:35:23,242 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_disable [2020-10-14 18:35:23,243 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_enable [2020-10-14 18:35:23,243 INFO L138 BoogieDeclarations]: Found implementation of procedure init_kernel [2020-10-14 18:35:23,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ddv [2020-10-14 18:35:23,244 INFO L138 BoogieDeclarations]: Found implementation of procedure call_ddv [2020-10-14 18:35:23,244 INFO L138 BoogieDeclarations]: Found implementation of procedure call_cdev_functions [2020-10-14 18:35:23,244 INFO L138 BoogieDeclarations]: Found implementation of procedure create_request [2020-10-14 18:35:23,245 INFO L138 BoogieDeclarations]: Found implementation of procedure call_rq_function [2020-10-14 18:35:23,245 INFO L138 BoogieDeclarations]: Found implementation of procedure call_genhd_functions [2020-10-14 18:35:23,245 INFO L138 BoogieDeclarations]: Found implementation of procedure call_interrupt_handler [2020-10-14 18:35:23,245 INFO L138 BoogieDeclarations]: Found implementation of procedure create_pci_dev [2020-10-14 18:35:23,245 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_probe_device [2020-10-14 18:35:23,245 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_remove_device [2020-10-14 18:35:23,245 INFO L138 BoogieDeclarations]: Found implementation of procedure call_pci_functions [2020-10-14 18:35:23,246 INFO L138 BoogieDeclarations]: Found implementation of procedure call_tasklet_functions [2020-10-14 18:35:23,246 INFO L138 BoogieDeclarations]: Found implementation of procedure call_timer_functions [2020-10-14 18:35:23,246 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2020-10-14 18:35:23,246 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_class [2020-10-14 18:35:23,246 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_register_driver [2020-10-14 18:35:23,247 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2020-10-14 18:35:23,247 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_region [2020-10-14 18:35:23,247 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_region [2020-10-14 18:35:23,247 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2020-10-14 18:35:23,248 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_regions [2020-10-14 18:35:23,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_user [2020-10-14 18:35:23,248 INFO L138 BoogieDeclarations]: Found implementation of procedure get_user [2020-10-14 18:35:23,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __put_user [2020-10-14 18:35:23,248 INFO L138 BoogieDeclarations]: Found implementation of procedure put_user [2020-10-14 18:35:23,249 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2020-10-14 18:35:23,249 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2020-10-14 18:35:23,249 INFO L138 BoogieDeclarations]: Found implementation of procedure register_blkdev [2020-10-14 18:35:23,249 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2020-10-14 18:35:23,249 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_disk [2020-10-14 18:35:23,250 INFO L138 BoogieDeclarations]: Found implementation of procedure add_disk [2020-10-14 18:35:23,250 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2020-10-14 18:35:23,250 INFO L138 BoogieDeclarations]: Found implementation of procedure get_fixed_request_queue [2020-10-14 18:35:23,250 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_init_queue [2020-10-14 18:35:23,251 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_alloc_queue [2020-10-14 18:35:23,251 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_make_request [2020-10-14 18:35:23,251 INFO L138 BoogieDeclarations]: Found implementation of procedure end_request [2020-10-14 18:35:23,251 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_hardsect_size [2020-10-14 18:35:23,251 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2020-10-14 18:35:23,252 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_register [2020-10-14 18:35:23,252 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_tty_driver [2020-10-14 18:35:23,252 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_set_operations [2020-10-14 18:35:23,252 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_chrdev_region [2020-10-14 18:35:23,253 INFO L138 BoogieDeclarations]: Found implementation of procedure register_chrdev_region [2020-10-14 18:35:23,253 INFO L138 BoogieDeclarations]: Found implementation of procedure register_chrdev [2020-10-14 18:35:23,253 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2020-10-14 18:35:23,254 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_alloc [2020-10-14 18:35:23,255 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_init [2020-10-14 18:35:23,255 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2020-10-14 18:35:23,256 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2020-10-14 18:35:23,256 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_init [2020-10-14 18:35:23,256 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-14 18:35:23,256 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-14 18:35:23,257 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2020-10-14 18:35:23,258 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2020-10-14 18:35:23,259 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-10-14 18:35:23,263 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-10-14 18:35:23,263 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2020-10-14 18:35:23,264 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2020-10-14 18:35:23,264 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2020-10-14 18:35:23,264 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2020-10-14 18:35:23,265 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2020-10-14 18:35:23,265 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2020-10-14 18:35:23,265 INFO L138 BoogieDeclarations]: Found implementation of procedure inw_p [2020-10-14 18:35:23,266 INFO L138 BoogieDeclarations]: Found implementation of procedure outw_p [2020-10-14 18:35:23,266 INFO L138 BoogieDeclarations]: Found implementation of procedure inl_p [2020-10-14 18:35:23,266 INFO L138 BoogieDeclarations]: Found implementation of procedure outl_p [2020-10-14 18:35:23,267 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2020-10-14 18:35:23,267 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2020-10-14 18:35:23,267 INFO L138 BoogieDeclarations]: Found implementation of procedure sema_init [2020-10-14 18:35:23,267 INFO L138 BoogieDeclarations]: Found implementation of procedure init_MUTEX [2020-10-14 18:35:23,267 INFO L138 BoogieDeclarations]: Found implementation of procedure init_MUTEX_LOCKED [2020-10-14 18:35:23,268 INFO L138 BoogieDeclarations]: Found implementation of procedure down [2020-10-14 18:35:23,275 INFO L138 BoogieDeclarations]: Found implementation of procedure down_interruptible [2020-10-14 18:35:23,275 INFO L138 BoogieDeclarations]: Found implementation of procedure down_trylock [2020-10-14 18:35:23,275 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2020-10-14 18:35:23,276 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2020-10-14 18:35:23,276 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2020-10-14 18:35:23,276 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2020-10-14 18:35:23,276 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2020-10-14 18:35:23,276 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2020-10-14 18:35:23,276 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2020-10-14 18:35:23,276 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2020-10-14 18:35:23,276 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2020-10-14 18:35:23,277 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-14 18:35:23,277 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2020-10-14 18:35:23,278 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2020-10-14 18:35:23,278 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer [2020-10-14 18:35:23,278 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2020-10-14 18:35:23,278 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer_on [2020-10-14 18:35:23,278 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2020-10-14 18:35:23,278 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2020-10-14 18:35:23,279 INFO L138 BoogieDeclarations]: Found implementation of procedure init_waitqueue_head [2020-10-14 18:35:23,279 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up [2020-10-14 18:35:23,279 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_all [2020-10-14 18:35:23,279 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_interruptible [2020-10-14 18:35:23,279 INFO L138 BoogieDeclarations]: Found implementation of procedure sleep_on [2020-10-14 18:35:23,279 INFO L138 BoogieDeclarations]: Found implementation of procedure interruptible_sleep_on [2020-10-14 18:35:23,279 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2020-10-14 18:35:23,279 INFO L138 BoogieDeclarations]: Found implementation of procedure call_shared_workqueue_functions [2020-10-14 18:35:23,280 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2020-10-14 18:35:23,280 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2020-10-14 18:35:23,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_free_pages [2020-10-14 18:35:23,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_free_page [2020-10-14 18:35:23,281 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2020-10-14 18:35:23,281 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages_node [2020-10-14 18:35:23,281 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2020-10-14 18:35:23,281 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_page [2020-10-14 18:35:23,281 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-14 18:35:23,282 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-14 18:35:23,282 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2020-10-14 18:35:23,282 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-14 18:35:23,282 INFO L138 BoogieDeclarations]: Found implementation of procedure no_llseek [2020-10-14 18:35:23,282 INFO L138 BoogieDeclarations]: Found implementation of procedure nonseekable_open [2020-10-14 18:35:23,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __module_get [2020-10-14 18:35:23,283 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2020-10-14 18:35:23,283 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2020-10-14 18:35:23,283 INFO L138 BoogieDeclarations]: Found implementation of procedure register_reboot_notifier [2020-10-14 18:35:23,283 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2020-10-14 18:35:23,283 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_reboot_notifier [2020-10-14 18:35:23,283 INFO L138 BoogieDeclarations]: Found implementation of procedure release_mem_region [2020-10-14 18:35:23,283 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-14 18:35:23,284 INFO L138 BoogieDeclarations]: Found implementation of procedure request_mem_region [2020-10-14 18:35:23,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2020-10-14 18:35:23,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2020-10-14 18:35:23,284 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-14 18:35:23,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 18:35:23,284 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 18:35:23,285 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 18:35:23,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 18:35:23,285 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2020-10-14 18:35:23,285 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_interrupt [2020-10-14 18:35:23,285 INFO L130 BoogieDeclarations]: Found specification of procedure call_ddv [2020-10-14 18:35:23,285 INFO L130 BoogieDeclarations]: Found specification of procedure barrier [2020-10-14 18:35:23,285 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2020-10-14 18:35:23,285 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2020-10-14 18:35:23,286 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2020-10-14 18:35:23,286 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_usecs [2020-10-14 18:35:23,286 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2020-10-14 18:35:23,286 INFO L130 BoogieDeclarations]: Found specification of procedure usecs_to_jiffies [2020-10-14 18:35:23,286 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer [2020-10-14 18:35:23,286 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer_on [2020-10-14 18:35:23,286 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2020-10-14 18:35:23,286 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2020-10-14 18:35:23,287 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2020-10-14 18:35:23,287 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2020-10-14 18:35:23,287 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2020-10-14 18:35:23,287 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2020-10-14 18:35:23,288 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2020-10-14 18:35:23,288 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2020-10-14 18:35:23,288 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2020-10-14 18:35:23,288 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-14 18:35:23,288 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2020-10-14 18:35:23,289 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2020-10-14 18:35:23,289 INFO L130 BoogieDeclarations]: Found specification of procedure rmb [2020-10-14 18:35:23,289 INFO L130 BoogieDeclarations]: Found specification of procedure read_barrier_depends [2020-10-14 18:35:23,289 INFO L130 BoogieDeclarations]: Found specification of procedure wmb [2020-10-14 18:35:23,289 INFO L130 BoogieDeclarations]: Found specification of procedure mb [2020-10-14 18:35:23,290 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-10-14 18:35:23,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 18:35:23,290 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-10-14 18:35:23,290 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-10-14 18:35:23,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 18:35:23,291 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2020-10-14 18:35:23,291 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2020-10-14 18:35:23,291 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2020-10-14 18:35:23,291 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2020-10-14 18:35:23,291 INFO L130 BoogieDeclarations]: Found specification of procedure init_waitqueue_head [2020-10-14 18:35:23,292 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2020-10-14 18:35:23,292 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2020-10-14 18:35:23,292 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up [2020-10-14 18:35:23,292 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_all [2020-10-14 18:35:23,292 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_interruptible [2020-10-14 18:35:23,293 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2020-10-14 18:35:23,293 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue_exclusive [2020-10-14 18:35:23,293 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2020-10-14 18:35:23,293 INFO L130 BoogieDeclarations]: Found specification of procedure waitqueue_active [2020-10-14 18:35:23,293 INFO L130 BoogieDeclarations]: Found specification of procedure sleep_on [2020-10-14 18:35:23,294 INFO L130 BoogieDeclarations]: Found specification of procedure interruptible_sleep_on [2020-10-14 18:35:23,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pthread_t [2020-10-14 18:35:23,294 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_create [2020-10-14 18:35:23,294 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_self [2020-10-14 18:35:23,296 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_equal [2020-10-14 18:35:23,301 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_exit [2020-10-14 18:35:23,301 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_join [2020-10-14 18:35:23,301 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_detach [2020-10-14 18:35:23,302 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_attr_init [2020-10-14 18:35:23,302 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_attr_destroy [2020-10-14 18:35:23,302 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_attr_setdetachstate [2020-10-14 18:35:23,302 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_attr_getdetachstate [2020-10-14 18:35:23,302 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_attr_setschedparam [2020-10-14 18:35:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_attr_getschedparam [2020-10-14 18:35:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_attr_setschedpolicy [2020-10-14 18:35:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_attr_getschedpolicy [2020-10-14 18:35:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_attr_setinheritsched [2020-10-14 18:35:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_attr_getinheritsched [2020-10-14 18:35:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_attr_setscope [2020-10-14 18:35:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_attr_getscope [2020-10-14 18:35:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_attr_setguardsize [2020-10-14 18:35:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_attr_getguardsize [2020-10-14 18:35:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_attr_setstackaddr [2020-10-14 18:35:23,308 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_attr_getstackaddr [2020-10-14 18:35:23,309 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_attr_setstack [2020-10-14 18:35:23,309 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_attr_getstack [2020-10-14 18:35:23,309 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_attr_setstacksize [2020-10-14 18:35:23,309 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_attr_getstacksize [2020-10-14 18:35:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_getattr_np [2020-10-14 18:35:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_setschedparam [2020-10-14 18:35:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_getschedparam [2020-10-14 18:35:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_getconcurrency [2020-10-14 18:35:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_setconcurrency [2020-10-14 18:35:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_yield [2020-10-14 18:35:23,311 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_mutex_init [2020-10-14 18:35:23,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 18:35:23,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-14 18:35:23,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 18:35:23,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 18:35:23,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 18:35:23,312 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_mutex_destroy [2020-10-14 18:35:23,312 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_mutex_trylock [2020-10-14 18:35:23,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-14 18:35:23,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-14 18:35:23,313 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_mutex_lock [2020-10-14 18:35:23,313 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_mutex_unlock [2020-10-14 18:35:23,313 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_spin_init [2020-10-14 18:35:23,314 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_spin_destroy [2020-10-14 18:35:23,314 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_spin_lock [2020-10-14 18:35:23,314 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_spin_trylock [2020-10-14 18:35:23,314 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_spin_unlock [2020-10-14 18:35:23,314 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_barrier_init [2020-10-14 18:35:23,314 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_barrier_destroy [2020-10-14 18:35:23,315 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_barrierattr_init [2020-10-14 18:35:23,315 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_barrierattr_destroy [2020-10-14 18:35:23,315 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_barrierattr_getpshared [2020-10-14 18:35:23,315 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_barrierattr_setpshared [2020-10-14 18:35:23,315 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_barrier_wait [2020-10-14 18:35:23,316 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_setcancelstate [2020-10-14 18:35:23,316 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_setcanceltype [2020-10-14 18:35:23,316 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_cancel [2020-10-14 18:35:23,316 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_testcancel [2020-10-14 18:35:23,316 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_atfork [2020-10-14 18:35:23,317 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_kill_other_threads_np [2020-10-14 18:35:23,317 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 18:35:23,317 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2020-10-14 18:35:23,317 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2020-10-14 18:35:23,317 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 18:35:23,317 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-14 18:35:23,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-14 18:35:23,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-14 18:35:23,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 18:35:23,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-14 18:35:23,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_unsigned [2020-10-14 18:35:23,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_loff_t [2020-10-14 18:35:23,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_size_t [2020-10-14 18:35:23,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_sector_t [2020-10-14 18:35:23,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2020-10-14 18:35:23,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pchar [2020-10-14 18:35:23,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 18:35:23,320 INFO L130 BoogieDeclarations]: Found specification of procedure noop [2020-10-14 18:35:23,320 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2020-10-14 18:35:23,320 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2020-10-14 18:35:23,320 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2020-10-14 18:35:23,320 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2020-10-14 18:35:23,320 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2020-10-14 18:35:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc_and_test [2020-10-14 18:35:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_negative [2020-10-14 18:35:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2020-10-14 18:35:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub_return [2020-10-14 18:35:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure __get_free_pages [2020-10-14 18:35:23,322 INFO L130 BoogieDeclarations]: Found specification of procedure __get_free_page [2020-10-14 18:35:23,322 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2020-10-14 18:35:23,322 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2020-10-14 18:35:23,322 INFO L130 BoogieDeclarations]: Found specification of procedure free_page [2020-10-14 18:35:23,322 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages_node [2020-10-14 18:35:23,322 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2020-10-14 18:35:23,322 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_page [2020-10-14 18:35:23,323 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-14 18:35:23,323 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-14 18:35:23,323 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-14 18:35:23,323 INFO L130 BoogieDeclarations]: Found specification of procedure ksize [2020-10-14 18:35:23,323 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-14 18:35:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2020-10-14 18:35:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2020-10-14 18:35:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2020-10-14 18:35:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2020-10-14 18:35:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure strncat [2020-10-14 18:35:23,325 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2020-10-14 18:35:23,325 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-10-14 18:35:23,325 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2020-10-14 18:35:23,325 INFO L130 BoogieDeclarations]: Found specification of procedure strnicmp [2020-10-14 18:35:23,325 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2020-10-14 18:35:23,325 INFO L130 BoogieDeclarations]: Found specification of procedure strnchr [2020-10-14 18:35:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2020-10-14 18:35:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure strstrip [2020-10-14 18:35:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2020-10-14 18:35:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-10-14 18:35:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2020-10-14 18:35:23,327 INFO L130 BoogieDeclarations]: Found specification of procedure strpbrk [2020-10-14 18:35:23,327 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2020-10-14 18:35:23,327 INFO L130 BoogieDeclarations]: Found specification of procedure strspn [2020-10-14 18:35:23,327 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2020-10-14 18:35:23,328 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-14 18:35:23,328 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2020-10-14 18:35:23,328 INFO L130 BoogieDeclarations]: Found specification of procedure memscan [2020-10-14 18:35:23,328 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2020-10-14 18:35:23,328 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2020-10-14 18:35:23,329 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-10-14 18:35:23,329 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2020-10-14 18:35:23,329 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-10-14 18:35:23,329 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_change_bit [2020-10-14 18:35:23,329 INFO L130 BoogieDeclarations]: Found specification of procedure test_bit [2020-10-14 18:35:23,330 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2020-10-14 18:35:23,330 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_zero_bit [2020-10-14 18:35:23,330 INFO L130 BoogieDeclarations]: Found specification of procedure sigfillset [2020-10-14 18:35:23,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-14 18:35:23,330 INFO L130 BoogieDeclarations]: Found specification of procedure sigaddsetmask [2020-10-14 18:35:23,330 INFO L130 BoogieDeclarations]: Found specification of procedure sigdelsetmask [2020-10-14 18:35:23,331 INFO L130 BoogieDeclarations]: Found specification of procedure sigtestsetmask [2020-10-14 18:35:23,331 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2020-10-14 18:35:23,331 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2020-10-14 18:35:23,331 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2020-10-14 18:35:23,331 INFO L130 BoogieDeclarations]: Found specification of procedure need_resched [2020-10-14 18:35:23,332 INFO L130 BoogieDeclarations]: Found specification of procedure dequeue_signal [2020-10-14 18:35:23,332 INFO L130 BoogieDeclarations]: Found specification of procedure yield [2020-10-14 18:35:23,332 INFO L130 BoogieDeclarations]: Found specification of procedure set_current_state [2020-10-14 18:35:23,332 INFO L130 BoogieDeclarations]: Found specification of procedure kill_proc [2020-10-14 18:35:23,332 INFO L130 BoogieDeclarations]: Found specification of procedure recalc_sigpending [2020-10-14 18:35:23,332 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2020-10-14 18:35:23,333 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtol [2020-10-14 18:35:23,333 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoull [2020-10-14 18:35:23,334 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoll [2020-10-14 18:35:23,334 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-14 18:35:23,334 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-10-14 18:35:23,334 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-14 18:35:23,334 INFO L130 BoogieDeclarations]: Found specification of procedure cond_resched [2020-10-14 18:35:23,335 INFO L130 BoogieDeclarations]: Found specification of procedure get_option [2020-10-14 18:35:23,335 INFO L130 BoogieDeclarations]: Found specification of procedure get_options [2020-10-14 18:35:23,335 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2020-10-14 18:35:23,335 INFO L130 BoogieDeclarations]: Found specification of procedure __module_get [2020-10-14 18:35:23,335 INFO L130 BoogieDeclarations]: Found specification of procedure misc_register [2020-10-14 18:35:23,335 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2020-10-14 18:35:23,336 INFO L130 BoogieDeclarations]: Found specification of procedure sema_init [2020-10-14 18:35:23,336 INFO L130 BoogieDeclarations]: Found specification of procedure init_MUTEX [2020-10-14 18:35:23,336 INFO L130 BoogieDeclarations]: Found specification of procedure init_MUTEX_LOCKED [2020-10-14 18:35:23,336 INFO L130 BoogieDeclarations]: Found specification of procedure down [2020-10-14 18:35:23,336 INFO L130 BoogieDeclarations]: Found specification of procedure down_interruptible [2020-10-14 18:35:23,337 INFO L130 BoogieDeclarations]: Found specification of procedure down_trylock [2020-10-14 18:35:23,337 INFO L130 BoogieDeclarations]: Found specification of procedure up [2020-10-14 18:35:23,337 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2020-10-14 18:35:23,337 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-10-14 18:35:23,337 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-14 18:35:23,337 INFO L130 BoogieDeclarations]: Found specification of procedure fasync_helper [2020-10-14 18:35:23,338 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_chrdev_region [2020-10-14 18:35:23,338 INFO L130 BoogieDeclarations]: Found specification of procedure register_chrdev_region [2020-10-14 18:35:23,338 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2020-10-14 18:35:23,338 INFO L130 BoogieDeclarations]: Found specification of procedure register_chrdev [2020-10-14 18:35:23,338 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2020-10-14 18:35:23,339 INFO L130 BoogieDeclarations]: Found specification of procedure chrdev_open [2020-10-14 18:35:23,340 INFO L130 BoogieDeclarations]: Found specification of procedure chrdev_show [2020-10-14 18:35:23,340 INFO L130 BoogieDeclarations]: Found specification of procedure register_blkdev [2020-10-14 18:35:23,340 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2020-10-14 18:35:23,340 INFO L130 BoogieDeclarations]: Found specification of procedure kill_fasync [2020-10-14 18:35:23,340 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2020-10-14 18:35:23,340 INFO L130 BoogieDeclarations]: Found specification of procedure imajor [2020-10-14 18:35:23,340 INFO L130 BoogieDeclarations]: Found specification of procedure no_llseek [2020-10-14 18:35:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure check_disk_change [2020-10-14 18:35:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure nonseekable_open [2020-10-14 18:35:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2020-10-14 18:35:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure set_blocksize [2020-10-14 18:35:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2020-10-14 18:35:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2020-10-14 18:35:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure request_mem_region [2020-10-14 18:35:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure release_mem_region [2020-10-14 18:35:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure register_reboot_notifier [2020-10-14 18:35:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_reboot_notifier [2020-10-14 18:35:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure machine_restart [2020-10-14 18:35:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure machine_halt [2020-10-14 18:35:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure machine_power_off [2020-10-14 18:35:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure machine_shutdown [2020-10-14 18:35:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure machine_crash_shutdown [2020-10-14 18:35:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure kernel_shutdown_prepare [2020-10-14 18:35:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure kernel_restart [2020-10-14 18:35:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure kernel_halt [2020-10-14 18:35:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure kernel_power_off [2020-10-14 18:35:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure ctrl_alt_del [2020-10-14 18:35:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure emergency_restart [2020-10-14 18:35:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2020-10-14 18:35:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2020-10-14 18:35:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2020-10-14 18:35:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2020-10-14 18:35:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-10-14 18:35:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-10-14 18:35:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2020-10-14 18:35:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2020-10-14 18:35:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2020-10-14 18:35:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2020-10-14 18:35:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2020-10-14 18:35:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2020-10-14 18:35:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure inw_p [2020-10-14 18:35:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure outw_p [2020-10-14 18:35:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure inl_p [2020-10-14 18:35:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure outl_p [2020-10-14 18:35:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure insb [2020-10-14 18:35:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure outsb [2020-10-14 18:35:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure insw [2020-10-14 18:35:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure outsw [2020-10-14 18:35:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure insl [2020-10-14 18:35:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure outsl [2020-10-14 18:35:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2020-10-14 18:35:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2020-10-14 18:35:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2020-10-14 18:35:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2020-10-14 18:35:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2020-10-14 18:35:23,348 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2020-10-14 18:35:23,348 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8_rep [2020-10-14 18:35:23,348 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16_rep [2020-10-14 18:35:23,348 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32_rep [2020-10-14 18:35:23,348 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8_rep [2020-10-14 18:35:23,348 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16_rep [2020-10-14 18:35:23,349 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32_rep [2020-10-14 18:35:23,349 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2020-10-14 18:35:23,349 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2020-10-14 18:35:23,349 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2020-10-14 18:35:23,349 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2020-10-14 18:35:23,350 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2020-10-14 18:35:23,350 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2020-10-14 18:35:23,350 INFO L130 BoogieDeclarations]: Found specification of procedure access_ok [2020-10-14 18:35:23,350 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user [2020-10-14 18:35:23,350 INFO L130 BoogieDeclarations]: Found specification of procedure get_user [2020-10-14 18:35:23,350 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user [2020-10-14 18:35:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure put_user [2020-10-14 18:35:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2020-10-14 18:35:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2020-10-14 18:35:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2020-10-14 18:35:23,356 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_status [2020-10-14 18:35:23,357 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2020-10-14 18:35:23,357 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2020-10-14 18:35:23,357 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_timer [2020-10-14 18:35:23,357 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2020-10-14 18:35:23,357 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_on [2020-10-14 18:35:23,358 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2020-10-14 18:35:23,358 INFO L130 BoogieDeclarations]: Found specification of procedure zf_write [2020-10-14 18:35:23,358 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ioctl [2020-10-14 18:35:23,358 INFO L130 BoogieDeclarations]: Found specification of procedure zf_open [2020-10-14 18:35:23,358 INFO L130 BoogieDeclarations]: Found specification of procedure zf_close [2020-10-14 18:35:23,359 INFO L130 BoogieDeclarations]: Found specification of procedure zf_notify_sys [2020-10-14 18:35:23,359 INFO L130 BoogieDeclarations]: Found specification of procedure zf_show_action [2020-10-14 18:35:23,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-14 18:35:23,359 INFO L130 BoogieDeclarations]: Found specification of procedure zf_init [2020-10-14 18:35:23,359 INFO L130 BoogieDeclarations]: Found specification of procedure zf_exit [2020-10-14 18:35:23,360 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 18:35:23,360 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_init [2020-10-14 18:35:23,360 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_alloc [2020-10-14 18:35:23,360 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_put [2020-10-14 18:35:23,360 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2020-10-14 18:35:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2020-10-14 18:35:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure cd_forget [2020-10-14 18:35:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure call_cdev_functions [2020-10-14 18:35:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure class_create [2020-10-14 18:35:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2020-10-14 18:35:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure class_device_create [2020-10-14 18:35:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure class_device_destroy [2020-10-14 18:35:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-14 18:35:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-14 18:35:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure dev_driver_string [2020-10-14 18:35:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure add_disk [2020-10-14 18:35:23,363 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2020-10-14 18:35:23,363 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_disk [2020-10-14 18:35:23,363 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2020-10-14 18:35:23,363 INFO L130 BoogieDeclarations]: Found specification of procedure get_disk [2020-10-14 18:35:23,363 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2020-10-14 18:35:23,363 INFO L130 BoogieDeclarations]: Found specification of procedure add_disk_randomness [2020-10-14 18:35:23,364 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2020-10-14 18:35:23,364 INFO L130 BoogieDeclarations]: Found specification of procedure flush_scheduled_work [2020-10-14 18:35:23,364 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_init [2020-10-14 18:35:23,364 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-14 18:35:23,364 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-14 18:35:23,365 INFO L130 BoogieDeclarations]: Found specification of procedure page_address [2020-10-14 18:35:23,365 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2020-10-14 18:35:23,365 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_disable [2020-10-14 18:35:23,365 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_enable [2020-10-14 18:35:23,365 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2020-10-14 18:35:23,365 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2020-10-14 18:35:23,366 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2020-10-14 18:35:23,366 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2020-10-14 18:35:23,366 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_on [2020-10-14 18:35:23,366 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_off [2020-10-14 18:35:23,366 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_mask [2020-10-14 18:35:23,366 INFO L130 BoogieDeclarations]: Found specification of procedure cli [2020-10-14 18:35:23,367 INFO L130 BoogieDeclarations]: Found specification of procedure sti [2020-10-14 18:35:23,367 INFO L130 BoogieDeclarations]: Found specification of procedure save_flags [2020-10-14 18:35:23,367 INFO L130 BoogieDeclarations]: Found specification of procedure restore_flags [2020-10-14 18:35:23,367 INFO L130 BoogieDeclarations]: Found specification of procedure kmap [2020-10-14 18:35:23,367 INFO L130 BoogieDeclarations]: Found specification of procedure kunmap [2020-10-14 18:35:23,368 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2020-10-14 18:35:23,368 INFO L130 BoogieDeclarations]: Found specification of procedure kunmap_atomic [2020-10-14 18:35:23,368 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic_pfn [2020-10-14 18:35:23,368 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic_to_page [2020-10-14 18:35:23,368 INFO L130 BoogieDeclarations]: Found specification of procedure __bio_kmap_atomic [2020-10-14 18:35:23,369 INFO L130 BoogieDeclarations]: Found specification of procedure __bio_kunmap_atomic [2020-10-14 18:35:23,369 INFO L130 BoogieDeclarations]: Found specification of procedure bio_endio [2020-10-14 18:35:23,369 INFO L130 BoogieDeclarations]: Found specification of procedure bio_cur_sectors [2020-10-14 18:35:23,369 INFO L130 BoogieDeclarations]: Found specification of procedure elv_next_request [2020-10-14 18:35:23,369 INFO L130 BoogieDeclarations]: Found specification of procedure blk_alloc_queue [2020-10-14 18:35:23,369 INFO L130 BoogieDeclarations]: Found specification of procedure blk_init_queue [2020-10-14 18:35:23,370 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_make_request [2020-10-14 18:35:23,370 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_hardsect_size [2020-10-14 18:35:23,370 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2020-10-14 18:35:23,370 INFO L130 BoogieDeclarations]: Found specification of procedure blk_put_queue [2020-10-14 18:35:23,370 INFO L130 BoogieDeclarations]: Found specification of procedure blk_plug_device [2020-10-14 18:35:23,371 INFO L130 BoogieDeclarations]: Found specification of procedure blk_remove_plug [2020-10-14 18:35:23,371 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_dequeue_request [2020-10-14 18:35:23,371 INFO L130 BoogieDeclarations]: Found specification of procedure end_that_request_first [2020-10-14 18:35:23,371 INFO L130 BoogieDeclarations]: Found specification of procedure end_that_request_chunk [2020-10-14 18:35:23,371 INFO L130 BoogieDeclarations]: Found specification of procedure end_that_request_last [2020-10-14 18:35:23,372 INFO L130 BoogieDeclarations]: Found specification of procedure end_request [2020-10-14 18:35:23,372 INFO L130 BoogieDeclarations]: Found specification of procedure blk_complete_request [2020-10-14 18:35:23,372 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_bounce_limit [2020-10-14 18:35:23,372 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_phys_segments [2020-10-14 18:35:23,372 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_hw_segments [2020-10-14 18:35:23,373 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_map_sg [2020-10-14 18:35:23,373 INFO L130 BoogieDeclarations]: Found specification of procedure call_genhd_functions [2020-10-14 18:35:23,373 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_present [2020-10-14 18:35:23,373 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_class [2020-10-14 18:35:23,373 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2020-10-14 18:35:23,373 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2020-10-14 18:35:23,374 INFO L130 BoogieDeclarations]: Found specification of procedure pci_register_driver [2020-10-14 18:35:23,374 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2020-10-14 18:35:23,374 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2020-10-14 18:35:23,374 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2020-10-14 18:35:23,374 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_regions [2020-10-14 18:35:23,375 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2020-10-14 18:35:23,375 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_region [2020-10-14 18:35:23,375 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_region [2020-10-14 18:35:23,375 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2020-10-14 18:35:23,375 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2020-10-14 18:35:23,376 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2020-10-14 18:35:23,376 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2020-10-14 18:35:23,376 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_page [2020-10-14 18:35:23,376 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2020-10-14 18:35:23,376 INFO L130 BoogieDeclarations]: Found specification of procedure pci_probe_device [2020-10-14 18:35:23,376 INFO L130 BoogieDeclarations]: Found specification of procedure pci_remove_device [2020-10-14 18:35:23,377 INFO L130 BoogieDeclarations]: Found specification of procedure call_pci_functions [2020-10-14 18:35:23,377 INFO L130 BoogieDeclarations]: Found specification of procedure call_interrupt_handler [2020-10-14 18:35:23,377 INFO L130 BoogieDeclarations]: Found specification of procedure call_tasklet_functions [2020-10-14 18:35:23,377 INFO L130 BoogieDeclarations]: Found specification of procedure call_timer_functions [2020-10-14 18:35:23,377 INFO L130 BoogieDeclarations]: Found specification of procedure call_shared_workqueue_functions [2020-10-14 18:35:23,377 INFO L130 BoogieDeclarations]: Found specification of procedure init_kernel [2020-10-14 18:35:23,378 INFO L130 BoogieDeclarations]: Found specification of procedure ddv [2020-10-14 18:35:23,378 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~int [2020-10-14 18:35:23,378 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2020-10-14 18:35:23,378 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~loff_t~0~X~int~TO~~loff_t~0 [2020-10-14 18:35:23,378 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2020-10-14 18:35:23,379 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2020-10-14 18:35:23,379 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-10-14 18:35:23,379 INFO L130 BoogieDeclarations]: Found specification of procedure create_request [2020-10-14 18:35:23,379 INFO L130 BoogieDeclarations]: Found specification of procedure call_rq_function [2020-10-14 18:35:23,379 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-14 18:35:23,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 18:35:23,380 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-10-14 18:35:23,380 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~X~$Pointer$~TO~~irqreturn_t~0 [2020-10-14 18:35:23,380 INFO L130 BoogieDeclarations]: Found specification of procedure create_pci_dev [2020-10-14 18:35:23,380 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2020-10-14 18:35:23,380 INFO L130 BoogieDeclarations]: Found specification of procedure get_fixed_request_queue [2020-10-14 18:35:23,381 INFO L130 BoogieDeclarations]: Found specification of procedure create_proc_read_entry [2020-10-14 18:35:23,381 INFO L130 BoogieDeclarations]: Found specification of procedure create_proc_entry [2020-10-14 18:35:23,381 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2020-10-14 18:35:23,381 INFO L130 BoogieDeclarations]: Found specification of procedure proc_mkdir [2020-10-14 18:35:23,381 INFO L130 BoogieDeclarations]: Found specification of procedure seq_open [2020-10-14 18:35:23,382 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2020-10-14 18:35:23,382 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2020-10-14 18:35:23,382 INFO L130 BoogieDeclarations]: Found specification of procedure seq_release [2020-10-14 18:35:23,382 INFO L130 BoogieDeclarations]: Found specification of procedure seq_escape [2020-10-14 18:35:23,382 INFO L130 BoogieDeclarations]: Found specification of procedure seq_putc [2020-10-14 18:35:23,383 INFO L130 BoogieDeclarations]: Found specification of procedure seq_puts [2020-10-14 18:35:23,383 INFO L130 BoogieDeclarations]: Found specification of procedure seq_printf [2020-10-14 18:35:23,383 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_tty_driver [2020-10-14 18:35:23,383 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2020-10-14 18:35:23,383 INFO L130 BoogieDeclarations]: Found specification of procedure tty_set_operations [2020-10-14 18:35:23,384 INFO L130 BoogieDeclarations]: Found specification of procedure tty_check_change [2020-10-14 18:35:23,384 INFO L130 BoogieDeclarations]: Found specification of procedure tty_register_ldisc [2020-10-14 18:35:23,384 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_ldisc [2020-10-14 18:35:23,384 INFO L130 BoogieDeclarations]: Found specification of procedure tty_register_driver [2020-10-14 18:35:23,384 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2020-10-14 18:35:23,385 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wait_until_sent [2020-10-14 18:35:23,385 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hangup [2020-10-14 18:35:23,385 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hung_up_p [2020-10-14 18:35:23,385 INFO L130 BoogieDeclarations]: Found specification of procedure do_SAK [2020-10-14 18:35:23,385 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2020-10-14 18:35:23,386 INFO L130 BoogieDeclarations]: Found specification of procedure tty_get_baud_rate [2020-10-14 18:35:23,386 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2020-10-14 18:35:23,386 INFO L130 BoogieDeclarations]: Found specification of procedure tty_ldisc_flush [2020-10-14 18:35:23,386 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2020-10-14 18:35:23,386 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2020-10-14 18:35:23,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 18:35:23,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-14 18:35:23,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-14 18:35:23,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 18:35:38,342 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 18:35:38,344 INFO L295 CfgBuilder]: Removed 12 assume(true) statements. [2020-10-14 18:35:38,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:35:38 BoogieIcfgContainer [2020-10-14 18:35:38,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 18:35:38,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 18:35:38,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 18:35:38,364 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 18:35:38,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 06:35:20" (1/3) ... [2020-10-14 18:35:38,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4724a40a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:35:38, skipping insertion in model container [2020-10-14 18:35:38,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:35:22" (2/3) ... [2020-10-14 18:35:38,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4724a40a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:35:38, skipping insertion in model container [2020-10-14 18:35:38,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:35:38" (3/3) ... [2020-10-14 18:35:38,368 INFO L109 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_inw.i [2020-10-14 18:35:38,378 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 18:35:38,386 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 18:35:38,397 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 18:35:38,422 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 18:35:38,422 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 18:35:38,422 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 18:35:38,422 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 18:35:38,422 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 18:35:38,423 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 18:35:38,423 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 18:35:38,423 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 18:35:38,455 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states. [2020-10-14 18:35:38,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-14 18:35:38,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:35:38,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:35:38,463 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:35:38,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:35:38,469 INFO L82 PathProgramCache]: Analyzing trace with hash 238688023, now seen corresponding path program 1 times [2020-10-14 18:35:38,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:35:38,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [585168865] [2020-10-14 18:35:38,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:35:38,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:35:39,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:35:39,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:35:41,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:35:41,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-14 18:35:41,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 18:35:41,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2285 [2020-10-14 18:35:41,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:35:41,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:35:41,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:35:41,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-14 18:35:41,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 18:35:41,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 18:35:42,226 WARN L193 SmtUtils]: Spent 875.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2020-10-14 18:35:42,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:35:42,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:35:42,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:35:42,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:35:42,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:35:42,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:35:42,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-14 18:35:42,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:35:42,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:35:42,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:35:42,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:35:42,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:35:42,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:35:42,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:35:42,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:35:42,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:35:42,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:35:42,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:35:42,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 18:35:42,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 18:35:42,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 18:35:42,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:35:42,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:35:42,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:35:42,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 18:35:42,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 18:35:42,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:35:42,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 18:35:42,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:35:42,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:35:42,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:35:42,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:35:42,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:35:42,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 18:35:42,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:35:42,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:35:42,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:35:42,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:35:42,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:35:42,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:35:42,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 18:35:42,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:35:42,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:35:42,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:35:42,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:35:42,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:35:42,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 18:35:42,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:35:42,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:35:42,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:35:42,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 18:35:42,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:35:42,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:35:42,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 18:35:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:35:42,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:35:42,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:35:42,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:35:42,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:35:42,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 18:35:42,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:35:42,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:35:42,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:35:42,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 18:35:42,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:35:42,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:35:42,623 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 18:35:42,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [585168865] [2020-10-14 18:35:42,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 18:35:42,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 18:35:42,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550586923] [2020-10-14 18:35:42,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 18:35:42,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:35:42,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 18:35:42,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 18:35:42,656 INFO L87 Difference]: Start difference. First operand 685 states. Second operand 5 states. [2020-10-14 18:35:53,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:35:53,008 INFO L93 Difference]: Finished difference Result 1007 states and 1360 transitions. [2020-10-14 18:35:53,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 18:35:53,010 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2020-10-14 18:35:53,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:35:53,036 INFO L225 Difference]: With dead ends: 1007 [2020-10-14 18:35:53,036 INFO L226 Difference]: Without dead ends: 524 [2020-10-14 18:35:53,045 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 18:35:53,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2020-10-14 18:35:53,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 459. [2020-10-14 18:35:53,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2020-10-14 18:35:53,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 589 transitions. [2020-10-14 18:35:53,213 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 589 transitions. Word has length 40 [2020-10-14 18:35:53,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:35:53,213 INFO L479 AbstractCegarLoop]: Abstraction has 459 states and 589 transitions. [2020-10-14 18:35:53,213 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 18:35:53,214 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 589 transitions. [2020-10-14 18:35:53,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-14 18:35:53,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:35:53,216 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:35:53,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 18:35:53,216 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:35:53,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:35:53,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1137628077, now seen corresponding path program 1 times [2020-10-14 18:35:53,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:35:53,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1706659741] [2020-10-14 18:35:53,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:35:53,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:35:53,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:35:54,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:35:54,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 18:35:54,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:35:54,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1253 [2020-10-14 18:35:54,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:35:54,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:35:54,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 18:35:54,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-14 18:35:54,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 18:35:54,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:35:55,411 WARN L193 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2020-10-14 18:35:55,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:35:55,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:35:55,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:35:55,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:35:55,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:35:55,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:35:55,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-14 18:35:55,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:35:55,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:35:55,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:35:55,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:35:55,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:35:55,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:35:55,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:35:55,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:35:55,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:35:55,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:35:55,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 18:35:55,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:35:55,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 18:35:55,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:35:55,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:35:55,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 18:35:55,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 18:35:55,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 18:35:55,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:35:55,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 18:35:55,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:35:55,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:35:55,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:35:55,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:35:55,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:35:55,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 18:35:55,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:35:55,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:35:55,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:35:55,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:35:55,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:35:55,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:35:55,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 18:35:55,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:35:55,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:35:55,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:35:55,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:35:55,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:35:55,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 18:35:55,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:35:55,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:35:55,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:35:55,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 18:35:55,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:35:55,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:35:55,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 18:35:55,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:35:55,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:35:55,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:35:55,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:35:55,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:35:55,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 18:35:55,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:35:55,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:35:55,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:35:55,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 18:35:55,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:35:55,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:35:55,844 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 18:35:55,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1706659741] [2020-10-14 18:35:55,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:35:55,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 18:35:55,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171265396] [2020-10-14 18:35:55,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 18:35:55,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:35:55,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 18:35:55,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 18:35:55,849 INFO L87 Difference]: Start difference. First operand 459 states and 589 transitions. Second operand 6 states. [2020-10-14 18:36:07,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:36:07,443 INFO L93 Difference]: Finished difference Result 970 states and 1255 transitions. [2020-10-14 18:36:07,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 18:36:07,449 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2020-10-14 18:36:07,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:36:07,455 INFO L225 Difference]: With dead ends: 970 [2020-10-14 18:36:07,455 INFO L226 Difference]: Without dead ends: 526 [2020-10-14 18:36:07,459 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 18:36:07,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-10-14 18:36:07,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 461. [2020-10-14 18:36:07,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2020-10-14 18:36:07,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 591 transitions. [2020-10-14 18:36:07,629 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 591 transitions. Word has length 44 [2020-10-14 18:36:07,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:36:07,629 INFO L479 AbstractCegarLoop]: Abstraction has 461 states and 591 transitions. [2020-10-14 18:36:07,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 18:36:07,630 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 591 transitions. [2020-10-14 18:36:07,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-14 18:36:07,631 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:36:07,631 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:36:07,631 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 18:36:07,632 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:36:07,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:36:07,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1492866001, now seen corresponding path program 2 times [2020-10-14 18:36:07,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:36:07,633 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1828415672] [2020-10-14 18:36:07,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:36:07,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:36:07,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:36:09,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:36:09,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 18:36:09,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:36:09,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1516 [2020-10-14 18:36:09,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:36:09,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:36:09,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 18:36:09,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-14 18:36:09,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:36:09,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:36:09,931 WARN L193 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2020-10-14 18:36:09,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:36:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:36:09,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:36:10,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:36:10,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:36:10,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:36:10,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 18:36:10,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:36:10,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:36:10,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:36:10,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:36:10,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:36:10,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:36:10,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:36:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:36:10,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:36:10,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:36:10,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-14 18:36:10,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:36:10,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 18:36:10,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:36:10,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:36:10,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 18:36:10,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 18:36:10,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:36:10,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:36:10,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 18:36:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:36:10,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:36:10,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:36:10,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:36:10,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:36:10,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 18:36:10,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:36:10,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:36:10,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:36:10,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:36:10,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:36:10,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:36:10,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 18:36:10,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:36:10,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:36:10,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:36:10,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:36:10,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:36:10,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 18:36:10,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:36:10,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:36:10,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:36:10,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 18:36:10,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:36:10,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:36:10,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 18:36:10,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:36:10,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:36:10,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:36:10,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:36:10,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:36:10,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 18:36:10,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:36:10,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:36:10,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:36:10,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 18:36:10,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:36:10,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:36:10,336 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 18:36:10,336 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1828415672] [2020-10-14 18:36:10,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:36:10,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 18:36:10,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913699986] [2020-10-14 18:36:10,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 18:36:10,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:36:10,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 18:36:10,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 18:36:10,339 INFO L87 Difference]: Start difference. First operand 461 states and 591 transitions. Second operand 7 states. [2020-10-14 18:36:23,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:36:23,304 INFO L93 Difference]: Finished difference Result 972 states and 1257 transitions. [2020-10-14 18:36:23,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 18:36:23,305 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2020-10-14 18:36:23,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:36:23,310 INFO L225 Difference]: With dead ends: 972 [2020-10-14 18:36:23,311 INFO L226 Difference]: Without dead ends: 528 [2020-10-14 18:36:23,312 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 18:36:23,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2020-10-14 18:36:23,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 463. [2020-10-14 18:36:23,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2020-10-14 18:36:23,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 593 transitions. [2020-10-14 18:36:23,405 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 593 transitions. Word has length 46 [2020-10-14 18:36:23,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:36:23,406 INFO L479 AbstractCegarLoop]: Abstraction has 463 states and 593 transitions. [2020-10-14 18:36:23,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 18:36:23,406 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 593 transitions. [2020-10-14 18:36:23,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-14 18:36:23,407 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:36:23,407 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:36:23,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 18:36:23,408 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:36:23,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:36:23,408 INFO L82 PathProgramCache]: Analyzing trace with hash -338062385, now seen corresponding path program 3 times [2020-10-14 18:36:23,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:36:23,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1759517656] [2020-10-14 18:36:23,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:36:23,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:36:23,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:36:25,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:36:25,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 18:36:25,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:36:25,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1867 [2020-10-14 18:36:25,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:36:25,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:36:25,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 18:36:25,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-14 18:36:25,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 18:36:25,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:36:26,069 WARN L193 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2020-10-14 18:36:26,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:36:26,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:36:26,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:36:26,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:36:26,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:36:26,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:36:26,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-14 18:36:26,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:36:26,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:36:26,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:36:26,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:36:26,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:36:26,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:36:26,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:36:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:36:26,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:36:26,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:36:26,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 18:36:26,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:36:26,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-14 18:36:26,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:36:26,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:36:26,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 18:36:26,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 18:36:26,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 18:36:26,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:36:26,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 18:36:26,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:36:26,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:36:26,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:36:26,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:36:26,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:36:26,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 18:36:26,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:36:26,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:36:26,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:36:26,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:36:26,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:36:26,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:36:26,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 18:36:26,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:36:26,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:36:26,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:36:26,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:36:26,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:36:26,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 18:36:26,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:36:26,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:36:26,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:36:26,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 18:36:26,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:36:26,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:36:26,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 18:36:26,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:36:26,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:36:26,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:36:26,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:36:26,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:36:26,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 18:36:26,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:36:26,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:36:26,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:36:26,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 18:36:26,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:36:26,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:36:26,521 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 18:36:26,521 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1759517656] [2020-10-14 18:36:26,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:36:26,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 18:36:26,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947255992] [2020-10-14 18:36:26,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 18:36:26,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:36:26,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 18:36:26,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 18:36:26,524 INFO L87 Difference]: Start difference. First operand 463 states and 593 transitions. Second operand 8 states. [2020-10-14 18:36:39,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:36:39,169 INFO L93 Difference]: Finished difference Result 974 states and 1259 transitions. [2020-10-14 18:36:39,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 18:36:39,170 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 48 [2020-10-14 18:36:39,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:36:39,175 INFO L225 Difference]: With dead ends: 974 [2020-10-14 18:36:39,175 INFO L226 Difference]: Without dead ends: 530 [2020-10-14 18:36:39,176 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 18:36:39,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2020-10-14 18:36:39,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 465. [2020-10-14 18:36:39,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 465 states. [2020-10-14 18:36:39,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 595 transitions. [2020-10-14 18:36:39,254 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 595 transitions. Word has length 48 [2020-10-14 18:36:39,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:36:39,254 INFO L479 AbstractCegarLoop]: Abstraction has 465 states and 595 transitions. [2020-10-14 18:36:39,255 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 18:36:39,255 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 595 transitions. [2020-10-14 18:36:39,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-14 18:36:39,256 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:36:39,256 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:36:39,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 18:36:39,257 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:36:39,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:36:39,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1076350029, now seen corresponding path program 4 times [2020-10-14 18:36:39,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:36:39,258 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [441228071] [2020-10-14 18:36:39,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:36:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:36:39,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:36:41,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:36:41,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 18:36:41,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:36:41,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2268 [2020-10-14 18:36:41,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:36:41,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:36:41,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 18:36:41,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-14 18:36:41,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 18:36:41,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:36:42,410 WARN L193 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2020-10-14 18:36:42,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:36:42,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:36:42,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:36:42,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:36:42,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:36:42,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:36:42,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 18:36:42,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:36:42,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:36:42,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:36:42,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:36:42,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:36:42,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:36:42,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:36:42,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:36:42,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:36:42,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:36:42,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-14 18:36:42,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:36:42,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 18:36:42,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:36:42,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:36:42,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 18:36:42,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 18:36:42,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 18:36:42,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:36:42,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 18:36:42,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:36:42,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:36:42,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:36:42,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:36:42,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:36:42,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 18:36:42,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:36:42,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:36:42,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:36:42,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:36:42,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:36:42,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:36:42,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 18:36:42,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:36:42,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:36:42,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:36:42,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:36:42,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:36:42,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 18:36:42,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:36:42,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:36:42,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:36:42,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 18:36:42,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:36:42,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:36:42,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 18:36:42,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:36:42,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:36:42,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:36:42,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:36:42,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:36:42,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 18:36:42,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:36:42,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:36:42,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:36:42,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 18:36:42,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:36:42,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:36:42,801 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 18:36:42,802 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [441228071] [2020-10-14 18:36:42,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:36:42,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 18:36:42,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33752234] [2020-10-14 18:36:42,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 18:36:42,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:36:42,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 18:36:42,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-14 18:36:42,804 INFO L87 Difference]: Start difference. First operand 465 states and 595 transitions. Second operand 9 states. [2020-10-14 18:36:57,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:36:57,623 INFO L93 Difference]: Finished difference Result 976 states and 1261 transitions. [2020-10-14 18:36:57,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 18:36:57,624 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2020-10-14 18:36:57,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:36:57,630 INFO L225 Difference]: With dead ends: 976 [2020-10-14 18:36:57,631 INFO L226 Difference]: Without dead ends: 532 [2020-10-14 18:36:57,632 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-14 18:36:57,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2020-10-14 18:36:57,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 467. [2020-10-14 18:36:57,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2020-10-14 18:36:57,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 597 transitions. [2020-10-14 18:36:57,738 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 597 transitions. Word has length 50 [2020-10-14 18:36:57,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:36:57,739 INFO L479 AbstractCegarLoop]: Abstraction has 467 states and 597 transitions. [2020-10-14 18:36:57,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 18:36:57,739 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 597 transitions. [2020-10-14 18:36:57,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-14 18:36:57,747 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:36:57,747 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:36:57,747 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 18:36:57,747 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:36:57,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:36:57,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1177952949, now seen corresponding path program 5 times [2020-10-14 18:36:57,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:36:57,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990217586] [2020-10-14 18:36:57,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:36:57,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:36:57,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:37:00,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:37:00,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-14 18:37:00,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:37:00,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2396 [2020-10-14 18:37:00,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:37:00,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:37:00,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 18:37:00,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-14 18:37:00,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 18:37:00,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:37:01,044 WARN L193 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2020-10-14 18:37:01,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:37:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:37:01,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:37:01,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:37:01,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:37:01,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:37:01,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 18:37:01,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:37:01,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:37:01,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:37:01,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:37:01,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:37:01,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:37:01,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:37:01,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:37:01,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:37:01,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:37:01,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 18:37:01,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:37:01,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 18:37:01,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:37:01,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:37:01,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 18:37:01,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 18:37:01,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 18:37:01,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 18:37:01,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 18:37:01,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:37:01,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:37:01,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:37:01,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:37:01,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:37:01,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 18:37:01,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:37:01,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:37:01,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:37:01,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:37:01,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:37:01,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:37:01,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 18:37:01,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:37:01,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:37:01,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:37:01,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:37:01,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:37:01,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 18:37:01,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:37:01,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:37:01,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:37:01,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 18:37:01,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:37:01,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:37:01,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 18:37:01,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:37:01,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:37:01,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:37:01,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:37:01,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:37:01,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 18:37:01,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:37:01,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:37:01,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:37:01,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 18:37:01,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:37:01,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:37:01,490 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 18:37:01,491 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990217586] [2020-10-14 18:37:01,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:37:01,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 18:37:01,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144453988] [2020-10-14 18:37:01,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 18:37:01,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:37:01,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 18:37:01,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-14 18:37:01,494 INFO L87 Difference]: Start difference. First operand 467 states and 597 transitions. Second operand 10 states. [2020-10-14 18:37:12,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:37:12,900 INFO L93 Difference]: Finished difference Result 978 states and 1263 transitions. [2020-10-14 18:37:12,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 18:37:12,901 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 52 [2020-10-14 18:37:12,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:37:12,906 INFO L225 Difference]: With dead ends: 978 [2020-10-14 18:37:12,906 INFO L226 Difference]: Without dead ends: 534 [2020-10-14 18:37:12,909 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-14 18:37:12,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2020-10-14 18:37:13,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 469. [2020-10-14 18:37:13,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2020-10-14 18:37:13,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 599 transitions. [2020-10-14 18:37:13,023 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 599 transitions. Word has length 52 [2020-10-14 18:37:13,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:37:13,023 INFO L479 AbstractCegarLoop]: Abstraction has 469 states and 599 transitions. [2020-10-14 18:37:13,023 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 18:37:13,023 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 599 transitions. [2020-10-14 18:37:13,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-14 18:37:13,024 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:37:13,024 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:37:13,024 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 18:37:13,024 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:37:13,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:37:13,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1395369673, now seen corresponding path program 6 times [2020-10-14 18:37:13,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:37:13,025 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [54134007] [2020-10-14 18:37:13,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:37:13,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:37:13,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:37:16,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:37:16,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 18:37:16,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:37:16,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2933 [2020-10-14 18:37:16,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:37:16,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:37:16,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 18:37:16,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-14 18:37:16,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 18:37:16,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:37:17,074 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 373 [2020-10-14 18:37:17,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:37:17,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:37:17,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:37:17,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:37:17,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:37:17,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:37:17,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-14 18:37:17,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:37:17,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:37:17,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:37:17,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:37:17,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:37:17,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:37:17,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:37:17,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:37:17,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:37:17,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:37:17,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 18:37:17,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:37:17,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-14 18:37:17,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:37:17,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:37:17,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 18:37:17,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 18:37:17,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 18:37:17,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:37:17,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 18:37:17,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:37:17,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:37:17,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:37:17,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:37:17,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:37:17,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 18:37:17,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:37:17,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:37:17,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:37:17,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:37:17,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:37:17,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:37:17,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 18:37:17,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:37:17,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:37:17,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:37:17,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:37:17,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:37:17,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 18:37:17,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:37:17,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:37:17,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:37:17,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 18:37:17,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:37:17,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:37:17,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 18:37:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:37:17,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:37:17,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:37:17,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:37:17,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:37:17,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 18:37:17,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:37:17,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:37:17,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:37:17,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 18:37:17,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:37:17,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:37:17,644 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 18:37:17,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [54134007] [2020-10-14 18:37:17,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:37:17,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 18:37:17,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722090492] [2020-10-14 18:37:17,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 18:37:17,646 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:37:17,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 18:37:17,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-10-14 18:37:17,647 INFO L87 Difference]: Start difference. First operand 469 states and 599 transitions. Second operand 11 states. [2020-10-14 18:37:33,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:37:33,407 INFO L93 Difference]: Finished difference Result 980 states and 1265 transitions. [2020-10-14 18:37:33,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 18:37:33,409 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 54 [2020-10-14 18:37:33,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:37:33,413 INFO L225 Difference]: With dead ends: 980 [2020-10-14 18:37:33,413 INFO L226 Difference]: Without dead ends: 536 [2020-10-14 18:37:33,415 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-10-14 18:37:33,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2020-10-14 18:37:33,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 471. [2020-10-14 18:37:33,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 471 states. [2020-10-14 18:37:33,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 601 transitions. [2020-10-14 18:37:33,493 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 601 transitions. Word has length 54 [2020-10-14 18:37:33,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:37:33,493 INFO L479 AbstractCegarLoop]: Abstraction has 471 states and 601 transitions. [2020-10-14 18:37:33,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 18:37:33,493 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 601 transitions. [2020-10-14 18:37:33,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-14 18:37:33,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:37:33,494 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:37:33,494 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 18:37:33,494 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:37:33,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:37:33,495 INFO L82 PathProgramCache]: Analyzing trace with hash 457246919, now seen corresponding path program 7 times [2020-10-14 18:37:33,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:37:33,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1658238745] [2020-10-14 18:37:33,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:37:33,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:37:33,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:37:36,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:37:36,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 18:37:36,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:37:36,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3325 [2020-10-14 18:37:36,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:37:36,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:37:36,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 18:37:36,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-14 18:37:36,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 18:37:36,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:37:37,985 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 373 [2020-10-14 18:37:37,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:37:38,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:37:38,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:37:38,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:37:38,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:37:38,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:37:38,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 18:37:38,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:37:38,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:37:38,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:37:38,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:37:38,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:37:38,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:37:38,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:37:38,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:37:38,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:37:38,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:37:38,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 18:37:38,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:37:38,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-14 18:37:38,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:37:38,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:37:38,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 18:37:38,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 18:37:38,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 18:37:38,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:37:38,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 18:37:38,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:37:38,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:37:38,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:37:38,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:37:38,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:37:38,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 18:37:38,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:37:38,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:37:38,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:37:38,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:37:38,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:37:38,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:37:38,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 18:37:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:37:38,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:37:38,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:37:38,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:37:38,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:37:38,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 18:37:38,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:37:38,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:37:38,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:37:38,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 18:37:38,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:37:38,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:37:38,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 18:37:38,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:37:38,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:37:38,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:37:38,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:37:38,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:37:38,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 18:37:38,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:37:38,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:37:38,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:37:38,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 18:37:38,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:37:38,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:37:38,468 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 18:37:38,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1658238745] [2020-10-14 18:37:38,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:37:38,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 18:37:38,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154739335] [2020-10-14 18:37:38,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 18:37:38,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:37:38,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 18:37:38,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-10-14 18:37:38,470 INFO L87 Difference]: Start difference. First operand 471 states and 601 transitions. Second operand 12 states. [2020-10-14 18:37:48,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:37:48,273 INFO L93 Difference]: Finished difference Result 982 states and 1267 transitions. [2020-10-14 18:37:48,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 18:37:48,275 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 56 [2020-10-14 18:37:48,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:37:48,279 INFO L225 Difference]: With dead ends: 982 [2020-10-14 18:37:48,279 INFO L226 Difference]: Without dead ends: 538 [2020-10-14 18:37:48,280 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-10-14 18:37:48,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2020-10-14 18:37:48,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 473. [2020-10-14 18:37:48,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 473 states. [2020-10-14 18:37:48,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 603 transitions. [2020-10-14 18:37:48,368 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 603 transitions. Word has length 56 [2020-10-14 18:37:48,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:37:48,368 INFO L479 AbstractCegarLoop]: Abstraction has 473 states and 603 transitions. [2020-10-14 18:37:48,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 18:37:48,368 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 603 transitions. [2020-10-14 18:37:48,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-14 18:37:48,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:37:48,369 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:37:48,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 18:37:48,369 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:37:48,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:37:48,370 INFO L82 PathProgramCache]: Analyzing trace with hash 864412485, now seen corresponding path program 8 times [2020-10-14 18:37:48,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:37:48,370 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1182263966] [2020-10-14 18:37:48,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:37:48,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:37:48,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:37:51,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:37:51,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 18:37:51,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:37:51,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3228 [2020-10-14 18:37:51,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:37:51,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:37:51,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 18:37:51,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-14 18:37:51,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 18:37:51,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:37:52,483 WARN L193 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2020-10-14 18:37:52,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:37:52,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:37:52,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:37:52,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:37:52,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:37:52,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:37:52,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 18:37:52,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:37:52,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:37:52,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:37:52,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:37:52,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:37:52,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:37:52,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:37:52,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:37:52,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:37:52,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:37:52,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 18:37:52,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:37:52,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-14 18:37:52,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:37:52,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:37:52,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 18:37:52,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 18:37:52,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 18:37:52,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:37:52,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 18:37:52,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:37:52,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:37:52,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:37:52,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:37:52,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:37:52,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 18:37:52,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:37:52,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:37:52,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:37:52,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:37:52,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:37:52,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:37:52,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 18:37:52,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:37:52,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:37:52,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:37:52,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:37:52,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:37:52,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 18:37:52,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:37:52,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:37:52,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:37:52,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 18:37:52,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:37:52,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:37:52,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 18:37:52,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:37:52,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:37:52,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:37:52,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:37:52,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:37:52,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 18:37:52,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:37:52,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:37:52,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:37:52,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 18:37:52,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:37:52,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:37:52,972 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 18:37:52,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1182263966] [2020-10-14 18:37:52,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:37:52,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 18:37:52,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723584827] [2020-10-14 18:37:52,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 18:37:52,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:37:52,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 18:37:52,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2020-10-14 18:37:52,975 INFO L87 Difference]: Start difference. First operand 473 states and 603 transitions. Second operand 13 states. [2020-10-14 18:38:12,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:38:12,559 INFO L93 Difference]: Finished difference Result 984 states and 1269 transitions. [2020-10-14 18:38:12,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 18:38:12,560 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 58 [2020-10-14 18:38:12,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:38:12,565 INFO L225 Difference]: With dead ends: 984 [2020-10-14 18:38:12,565 INFO L226 Difference]: Without dead ends: 540 [2020-10-14 18:38:12,567 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2020-10-14 18:38:12,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2020-10-14 18:38:12,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 475. [2020-10-14 18:38:12,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 475 states. [2020-10-14 18:38:12,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 605 transitions. [2020-10-14 18:38:12,655 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 605 transitions. Word has length 58 [2020-10-14 18:38:12,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:38:12,656 INFO L479 AbstractCegarLoop]: Abstraction has 475 states and 605 transitions. [2020-10-14 18:38:12,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 18:38:12,656 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 605 transitions. [2020-10-14 18:38:12,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-14 18:38:12,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:38:12,657 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:38:12,657 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 18:38:12,657 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:38:12,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:38:12,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1308497475, now seen corresponding path program 9 times [2020-10-14 18:38:12,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:38:12,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [489646255] [2020-10-14 18:38:12,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:38:12,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:38:12,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:38:16,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:38:16,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-14 18:38:16,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:38:16,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3785 [2020-10-14 18:38:16,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:38:16,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:38:16,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 18:38:16,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-14 18:38:16,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 18:38:16,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:38:17,239 WARN L193 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2020-10-14 18:38:17,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:38:17,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:38:17,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:38:17,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:38:17,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:38:17,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:38:17,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 18:38:17,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:38:17,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:38:17,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:38:17,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:38:17,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:38:17,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:38:17,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:38:17,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:38:17,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:38:17,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:38:17,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 18:38:17,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:38:17,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 18:38:17,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:38:17,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:38:17,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 18:38:17,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 18:38:17,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 18:38:17,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:38:17,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 18:38:17,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:38:17,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:38:17,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:38:17,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:38:17,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:38:17,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 18:38:17,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:38:17,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:38:17,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:38:17,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:38:17,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:38:17,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:38:17,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 18:38:17,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:38:17,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:38:17,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:38:17,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:38:17,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:38:17,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 18:38:17,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:38:17,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:38:17,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:38:17,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 18:38:17,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:38:17,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:38:17,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 18:38:17,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:38:17,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:38:17,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:38:17,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:38:17,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:38:17,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 18:38:17,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:38:17,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:38:17,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:38:17,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 18:38:17,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:38:17,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:38:17,648 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 18:38:17,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [489646255] [2020-10-14 18:38:17,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:38:17,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-14 18:38:17,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245423114] [2020-10-14 18:38:17,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 18:38:17,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:38:17,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 18:38:17,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2020-10-14 18:38:17,650 INFO L87 Difference]: Start difference. First operand 475 states and 605 transitions. Second operand 14 states. [2020-10-14 18:38:34,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:38:34,125 INFO L93 Difference]: Finished difference Result 985 states and 1270 transitions. [2020-10-14 18:38:34,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 18:38:34,126 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 60 [2020-10-14 18:38:34,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:38:34,131 INFO L225 Difference]: With dead ends: 985 [2020-10-14 18:38:34,131 INFO L226 Difference]: Without dead ends: 541 [2020-10-14 18:38:34,133 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2020-10-14 18:38:34,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2020-10-14 18:38:34,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 477. [2020-10-14 18:38:34,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2020-10-14 18:38:34,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 607 transitions. [2020-10-14 18:38:34,232 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 607 transitions. Word has length 60 [2020-10-14 18:38:34,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:38:34,232 INFO L479 AbstractCegarLoop]: Abstraction has 477 states and 607 transitions. [2020-10-14 18:38:34,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 18:38:34,233 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 607 transitions. [2020-10-14 18:38:34,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-14 18:38:34,234 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:38:34,234 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:38:34,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 18:38:34,234 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:38:34,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:38:34,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1422556735, now seen corresponding path program 10 times [2020-10-14 18:38:34,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:38:34,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1874297926] [2020-10-14 18:38:34,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:38:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 18:38:34,424 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 18:38:34,424 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 18:38:34,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 18:38:34,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 06:38:34 BoogieIcfgContainer [2020-10-14 18:38:34,464 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 18:38:34,466 INFO L168 Benchmark]: Toolchain (without parser) took 193891.97 ms. Allocated memory was 147.8 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 99.3 MB in the beginning and 258.8 MB in the end (delta: -159.6 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2020-10-14 18:38:34,467 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-14 18:38:34,468 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2193.13 ms. Allocated memory was 147.8 MB in the beginning and 245.9 MB in the end (delta: 98.0 MB). Free memory was 99.3 MB in the beginning and 209.8 MB in the end (delta: -110.5 MB). Peak memory consumption was 106.4 MB. Max. memory is 7.1 GB. [2020-10-14 18:38:34,476 INFO L168 Benchmark]: Boogie Preprocessor took 347.87 ms. Allocated memory is still 245.9 MB. Free memory was 209.8 MB in the beginning and 185.1 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2020-10-14 18:38:34,481 INFO L168 Benchmark]: RCFGBuilder took 15241.04 ms. Allocated memory was 245.9 MB in the beginning and 481.3 MB in the end (delta: 235.4 MB). Free memory was 185.1 MB in the beginning and 324.3 MB in the end (delta: -139.1 MB). Peak memory consumption was 267.5 MB. Max. memory is 7.1 GB. [2020-10-14 18:38:34,483 INFO L168 Benchmark]: TraceAbstraction took 176103.51 ms. Allocated memory was 481.3 MB in the beginning and 1.5 GB in the end (delta: 1.0 GB). Free memory was 324.3 MB in the beginning and 258.8 MB in the end (delta: 65.5 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2020-10-14 18:38:34,491 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2193.13 ms. Allocated memory was 147.8 MB in the beginning and 245.9 MB in the end (delta: 98.0 MB). Free memory was 99.3 MB in the beginning and 209.8 MB in the end (delta: -110.5 MB). Peak memory consumption was 106.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 347.87 ms. Allocated memory is still 245.9 MB. Free memory was 209.8 MB in the beginning and 185.1 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 15241.04 ms. Allocated memory was 245.9 MB in the beginning and 481.3 MB in the end (delta: 235.4 MB). Free memory was 185.1 MB in the beginning and 324.3 MB in the end (delta: -139.1 MB). Peak memory consumption was 267.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 176103.51 ms. Allocated memory was 481.3 MB in the beginning and 1.5 GB in the end (delta: 1.0 GB). Free memory was 324.3 MB in the beginning and 258.8 MB in the end (delta: 65.5 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 1482. Possible FailurePath: [L18] int current_execution_context; [L29] int (* _ddv_module_init)(void); [L30] void (* _ddv_module_exit)(void); [L230] unsigned long jiffies; [L1472] char _ddv_module_author[] = "Fernando Fuganti "; [L1473] char _ddv_module_description[] = "MachZ ZF-Logic Watchdog driver"; [L1474] char _ddv_module_license[] = "GPL"; [L1476] static int nowayout = 0; [L1477] char _ddv_module_param_nowayout [] = "Watchdog cannot be stopped once started (default=CONFIG_WATCHDOG_NOWAYOUT)"; [L1481-L1485] static struct watchdog_info zf_info = { .options = 0x8000 | 0x0100, .firmware_version = 1, .identity = "ZF-Logic watchdog", }; [L1486] static int action = 0; [L1487] char _ddv_module_param_action [] = "after watchdog resets, generate: 0 = RESET(*) 1 = SMI 2 = NMI 3 = SCI"; [L1489] static int zf_action = 0x0800; [L1490] static unsigned long zf_is_open; [L1491] static char zf_expect_close; [L1492] static spinlock_t zf_lock; [L1493] static spinlock_t zf_port_lock; [L1494] static struct timer_list zf_timer; [L1495] static unsigned long next_heartbeat = 0; [L1741-L1748] static const struct file_operations zf_fops = { .owner = ((struct module *) 0), .llseek = no_llseek, .write = zf_write, .ioctl = zf_ioctl, .open = zf_open, .release = zf_close, }; [L1750-L1754] static struct miscdevice zf_miscdev = { .minor = 130, .name = "watchdog", .fops = (struct file_operations *)&zf_fops, }; [L1761-L1763] static struct notifier_block zf_notifier = { .notifier_call = zf_notify_sys, }; [L1843] int (* _ddv_tmp_init)(void) = zf_init; [L1844] void (* _ddv_tmp_exit)(void) = zf_exit; [L1895] struct cdev fixed_cdev[1]; [L1896] int fixed_cdev_used = 0; [L1898] short number_cdev_registered = 0; [L1909] struct ddv_cdev cdev_registered[1]; [L2446] short number_genhd_registered = 0; [L2447] short number_fixed_genhd_used = 0; [L2458] struct gendisk fixed_gendisk[10]; [L2459] struct ddv_genhd genhd_registered[10]; [L2595] struct ddv_pci_driver registered_pci_driver; [L2606] struct registered_irq registered_irq[16]; [L2616] short number_tasklet_registered = 0; [L2623] struct ddv_tasklet tasklet_registered[1]; [L2633] short number_timer_registered = 0; [L2639] struct ddv_timer timer_registered[1]; [L2649] struct work_struct *shared_workqueue[10]; [L2659] spinlock_t kernel_lock; [L3345] request_queue_t fixed_request_queue[10]; [L3347] int number_request_queue_used = 0; [L3431] struct proc_dir_entry *proc_root_driver; [L3741] struct ddv_tty_driver global_tty_driver; [L3920] int ddv_ioport_request_start; [L3921] int ddv_ioport_request_len; [L1848] _ddv_module_init = zf_init [L1849] _ddv_module_exit = zf_exit [L1850] CALL call_ddv() [L2723] int err; [L2725] current_execution_context = 1 [L2727] CALL init_kernel() [L2663] int i; [L2665] CALL spin_lock_init(&kernel_lock) [L4153] lock->init = 1 [L4154] lock->locked = 0 [L2665] RET spin_lock_init(&kernel_lock) [L2667] i = 0 [L2667] COND TRUE i < 10 [L2668] shared_workqueue[i] = ((void *)0) [L2667] i++ [L2667] COND TRUE i < 10 [L2668] shared_workqueue[i] = ((void *)0) [L2667] i++ [L2667] COND TRUE i < 10 [L2668] shared_workqueue[i] = ((void *)0) [L2667] i++ [L2667] COND TRUE i < 10 [L2668] shared_workqueue[i] = ((void *)0) [L2667] i++ [L2667] COND TRUE i < 10 [L2668] shared_workqueue[i] = ((void *)0) [L2667] i++ [L2667] COND TRUE i < 10 [L2668] shared_workqueue[i] = ((void *)0) [L2667] i++ [L2667] COND TRUE i < 10 [L2668] shared_workqueue[i] = ((void *)0) [L2667] i++ [L2667] COND TRUE i < 10 [L2668] shared_workqueue[i] = ((void *)0) [L2667] i++ [L2667] COND TRUE i < 10 [L2668] shared_workqueue[i] = ((void *)0) [L2667] i++ [L2667] COND TRUE i < 10 [L2668] shared_workqueue[i] = ((void *)0) [L2667] i++ [L2667] COND FALSE !(i < 10) [L2671] i = 0 [L2671] COND TRUE i < 1 [L2672] tasklet_registered[i].tasklet = ((void *)0) [L2673] tasklet_registered[i].is_running = 0 [L2671] i++ [L2671] COND FALSE !(i < 1) [L2727] RET init_kernel() [L2729] CALL (* _ddv_module_init)() [L1774] int ret; [L1776] CALL printk("<6>" "machzwd" ": MachZ ZF-Logic Watchdog driver initializing.\n") [L4480] return 0; [L1776] RET printk("<6>" "machzwd" ": MachZ ZF-Logic Watchdog driver initializing.\n") [L1778] CALL zf_readw(0x02) [L1467] FCALL outb(port, 0x218) [L1468] CALL inw(0x21A) [L3961] CALL __VERIFIER_assert(port >= ddv_ioport_request_start && port < ddv_ioport_request_start + ddv_ioport_request_len, "I/O port is requested") [L10] COND TRUE !expression [L10] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 196 procedures, 1093 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 176.0s, OverallIterations: 11, TraceHistogramMax: 10, AutomataDifference: 135.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4968 SDtfs, 2925 SDslu, 11977 SDs, 0 SdLazy, 14054 SolverSat, 1438 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 123.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 185 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 9.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=685occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 649 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 38.0s InterpolantComputationTime, 570 NumberOfCodeBlocks, 570 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 498 ConstructedInterpolants, 0 QuantifiedInterpolants, 230046 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 9/294 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...