/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 SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:11:22,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:11:22,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:11:22,191 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:11:22,192 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:11:22,199 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:11:22,202 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:11:22,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:11:22,209 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:11:22,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:11:22,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:11:22,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:11:22,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:11:22,217 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:11:22,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:11:22,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:11:22,223 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:11:22,224 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:11:22,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:11:22,234 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:11:22,236 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:11:22,237 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:11:22,238 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:11:22,239 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:11:22,256 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:11:22,257 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:11:22,257 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:11:22,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:11:22,261 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:11:22,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:11:22,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:11:22,266 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:11:22,267 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:11:22,268 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:11:22,269 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:11:22,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:11:22,269 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:11:22,270 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:11:22,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:11:22,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:11:22,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:11:22,273 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-09-24 21:11:22,317 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:11:22,317 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:11:22,320 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:11:22,320 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:11:22,320 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:11:22,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:11:22,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:11:22,321 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:11:22,321 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:11:22,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:11:22,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:11:22,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:11:22,323 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:11:22,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:11:22,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:11:22,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:11:22,324 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:11:22,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:11:22,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:11:22,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:11:22,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:11:22,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:11:22,325 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:11:22,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:11:22,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:11:22,326 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:11:22,326 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-24 21:11:22,326 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; [2020-09-24 21:11:22,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:11:22,824 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:11:22,829 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:11:22,831 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:11:22,831 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:11:22,832 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i [2020-09-24 21:11:22,921 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bca975900/d59ae9f6933648bebafcafeb2abb01bd/FLAG0d8a76d9c [2020-09-24 21:11:23,636 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:11:23,637 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i [2020-09-24 21:11:23,668 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bca975900/d59ae9f6933648bebafcafeb2abb01bd/FLAG0d8a76d9c [2020-09-24 21:11:23,808 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bca975900/d59ae9f6933648bebafcafeb2abb01bd [2020-09-24 21:11:23,822 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:11:23,829 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:11:23,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:11:23,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:11:23,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:11:23,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:11:23" (1/1) ... [2020-09-24 21:11:23,840 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9ccd168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:23, skipping insertion in model container [2020-09-24 21:11:23,841 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:11:23" (1/1) ... [2020-09-24 21:11:23,852 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:11:23,929 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:11:24,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:11:24,849 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:11:25,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:11:25,143 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:11:25,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:25 WrapperNode [2020-09-24 21:11:25,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:11:25,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:11:25,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:11:25,147 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:11:25,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:25" (1/1) ... [2020-09-24 21:11:25,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:25" (1/1) ... [2020-09-24 21:11:25,231 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:25" (1/1) ... [2020-09-24 21:11:25,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:25" (1/1) ... [2020-09-24 21:11:25,311 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:25" (1/1) ... [2020-09-24 21:11:25,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:25" (1/1) ... [2020-09-24 21:11:25,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:25" (1/1) ... [2020-09-24 21:11:25,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:11:25,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:11:25,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:11:25,341 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:11:25,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:25" (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 [2020-09-24 21:11:25,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:11:25,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:11:25,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~u32~0 [2020-09-24 21:11:25,438 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-09-24 21:11:25,439 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-09-24 21:11:25,439 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2020-09-24 21:11:25,439 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_set_clientdata [2020-09-24 21:11:25,439 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_functionality [2020-09-24 21:11:25,439 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_check_functionality [2020-09-24 21:11:25,440 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_get_voltage_sel [2020-09-24 21:11:25,440 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_set_voltage_sel [2020-09-24 21:11:25,440 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_probe [2020-09-24 21:11:25,440 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_remove [2020-09-24 21:11:25,440 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_init [2020-09-24 21:11:25,440 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_cleanup [2020-09-24 21:11:25,441 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:11:25,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2020-09-24 21:11:25,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2020-09-24 21:11:25,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2020-09-24 21:11:25,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2020-09-24 21:11:25,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2020-09-24 21:11:25,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2020-09-24 21:11:25,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2020-09-24 21:11:25,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2020-09-24 21:11:25,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2020-09-24 21:11:25,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_10 [2020-09-24 21:11:25,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2020-09-24 21:11:25,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-24 21:11:25,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-24 21:11:25,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-24 21:11:25,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-09-24 21:11:25,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-09-24 21:11:25,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-24 21:11:25,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-09-24 21:11:25,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-24 21:11:25,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-09-24 21:11:25,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-09-24 21:11:25,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-09-24 21:11:25,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-09-24 21:11:25,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-09-24 21:11:25,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-09-24 21:11:25,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-09-24 21:11:25,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-09-24 21:11:25,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-09-24 21:11:25,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mtx_of_isl_pmic [2020-09-24 21:11:25,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mtx_of_isl_pmic [2020-09-24 21:11:25,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mtx_of_isl_pmic [2020-09-24 21:11:25,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mtx_of_isl_pmic [2020-09-24 21:11:25,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mtx_of_isl_pmic [2020-09-24 21:11:25,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mtx_of_isl_pmic [2020-09-24 21:11:25,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mtx_of_isl_pmic [2020-09-24 21:11:25,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-09-24 21:11:25,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-09-24 21:11:25,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-09-24 21:11:25,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-09-24 21:11:25,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-09-24 21:11:25,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-09-24 21:11:25,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-09-24 21:11:25,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-24 21:11:25,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-24 21:11:25,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2020-09-24 21:11:25,448 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-09-24 21:11:25,449 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 21:11:25,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 21:11:25,449 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-09-24 21:11:25,449 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-24 21:11:25,449 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2020-09-24 21:11:25,449 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_del_driver [2020-09-24 21:11:25,449 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_register_driver [2020-09-24 21:11:25,450 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_byte [2020-09-24 21:11:25,450 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_byte [2020-09-24 21:11:25,450 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-09-24 21:11:25,450 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-09-24 21:11:25,450 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-09-24 21:11:25,450 INFO L138 BoogieDeclarations]: Found implementation of procedure rdev_get_drvdata [2020-09-24 21:11:25,450 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_list_voltage_linear [2020-09-24 21:11:25,451 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_map_voltage_linear [2020-09-24 21:11:25,451 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_register [2020-09-24 21:11:25,451 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_unregister [2020-09-24 21:11:25,451 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-24 21:11:25,451 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:11:25,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-24 21:11:25,452 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-09-24 21:11:25,452 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-09-24 21:11:25,452 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2020-09-24 21:11:25,452 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-09-24 21:11:25,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2020-09-24 21:11:25,452 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-09-24 21:11:25,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2020-09-24 21:11:25,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2020-09-24 21:11:25,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2020-09-24 21:11:25,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2020-09-24 21:11:25,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2020-09-24 21:11:25,453 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-09-24 21:11:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2020-09-24 21:11:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2020-09-24 21:11:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2020-09-24 21:11:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2020-09-24 21:11:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_10 [2020-09-24 21:11:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-24 21:11:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-09-24 21:11:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-09-24 21:11:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-09-24 21:11:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mtx_of_isl_pmic [2020-09-24 21:11:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mtx_of_isl_pmic [2020-09-24 21:11:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-09-24 21:11:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-09-24 21:11:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-09-24 21:11:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:11:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2020-09-24 21:11:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-09-24 21:11:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-24 21:11:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-09-24 21:11:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_register [2020-09-24 21:11:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_unregister [2020-09-24 21:11:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure rdev_get_drvdata [2020-09-24 21:11:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_list_voltage_linear [2020-09-24 21:11:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_map_voltage_linear [2020-09-24 21:11:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_byte [2020-09-24 21:11:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_byte [2020-09-24 21:11:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2020-09-24 21:11:25,458 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_set_clientdata [2020-09-24 21:11:25,458 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_register_driver [2020-09-24 21:11:25,458 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_del_driver [2020-09-24 21:11:25,458 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_functionality [2020-09-24 21:11:25,458 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~u32~0 [2020-09-24 21:11:25,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:11:25,459 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_check_functionality [2020-09-24 21:11:25,459 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_get_voltage_sel [2020-09-24 21:11:25,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:11:25,459 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_set_voltage_sel [2020-09-24 21:11:25,459 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_probe [2020-09-24 21:11:25,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:11:25,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:11:25,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:11:25,460 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_remove [2020-09-24 21:11:25,460 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_init [2020-09-24 21:11:25,460 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_cleanup [2020-09-24 21:11:25,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-24 21:11:25,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-24 21:11:25,461 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:11:25,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-24 21:11:25,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-24 21:11:25,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-09-24 21:11:25,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-09-24 21:11:25,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-09-24 21:11:25,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-24 21:11:25,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-09-24 21:11:25,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-09-24 21:11:25,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-09-24 21:11:25,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-09-24 21:11:25,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-09-24 21:11:25,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-09-24 21:11:25,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mtx_of_isl_pmic [2020-09-24 21:11:25,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mtx_of_isl_pmic [2020-09-24 21:11:25,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mtx_of_isl_pmic [2020-09-24 21:11:25,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mtx_of_isl_pmic [2020-09-24 21:11:25,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mtx_of_isl_pmic [2020-09-24 21:11:25,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-09-24 21:11:25,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-09-24 21:11:25,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-09-24 21:11:25,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-09-24 21:11:25,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-24 21:11:25,465 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:11:25,465 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 21:11:25,465 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 21:11:25,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 21:11:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:11:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:11:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-24 21:11:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:11:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:11:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 21:11:25,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:11:25,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:11:27,236 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:11:27,236 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 21:11:27,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:11:27 BoogieIcfgContainer [2020-09-24 21:11:27,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:11:27,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:11:27,251 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:11:27,255 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:11:27,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:11:23" (1/3) ... [2020-09-24 21:11:27,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62b484ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:11:27, skipping insertion in model container [2020-09-24 21:11:27,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:25" (2/3) ... [2020-09-24 21:11:27,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62b484ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:11:27, skipping insertion in model container [2020-09-24 21:11:27,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:11:27" (3/3) ... [2020-09-24 21:11:27,259 INFO L109 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i [2020-09-24 21:11:27,271 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:11:27,284 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:11:27,305 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:11:27,337 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:11:27,337 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:11:27,337 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:11:27,337 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:11:27,337 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:11:27,337 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:11:27,338 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:11:27,338 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:11:27,379 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states. [2020-09-24 21:11:27,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-09-24 21:11:27,409 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:11:27,411 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:11:27,413 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:11:27,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:11:27,421 INFO L82 PathProgramCache]: Analyzing trace with hash -945339618, now seen corresponding path program 1 times [2020-09-24 21:11:27,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:11:27,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [557025599] [2020-09-24 21:11:27,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:11:27,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:28,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:28,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:29,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:29,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 295 [2020-09-24 21:11:29,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:11:29,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1413 [2020-09-24 21:11:29,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:29,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:11:29,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 258 [2020-09-24 21:11:29,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 21:11:29,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 21:11:29,809 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-24 21:11:29,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:11:29,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:29,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:30,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:30,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 21:11:30,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:30,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 307 [2020-09-24 21:11:30,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:30,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:11:30,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:30,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:11:30,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:30,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-24 21:11:30,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:30,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:30,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:30,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:11:30,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:30,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 21:11:30,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:30,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:11:30,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:30,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:11:30,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:11:30,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-09-24 21:11:30,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:30,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:30,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:30,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:11:30,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:30,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 21:11:30,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:30,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:11:30,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:11:30,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:11:30,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:11:30,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:11:30,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:30,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:30,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:30,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:11:30,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:30,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 21:11:30,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:30,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:11:30,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:30,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:11:30,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:11:30,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:11:30,712 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [557025599] [2020-09-24 21:11:30,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:11:30,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:11:30,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16135119] [2020-09-24 21:11:30,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:11:30,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:11:30,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:11:30,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:11:30,769 INFO L87 Difference]: Start difference. First operand 934 states. Second operand 5 states. [2020-09-24 21:11:32,109 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-24 21:11:36,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:11:36,416 INFO L93 Difference]: Finished difference Result 1768 states and 2027 transitions. [2020-09-24 21:11:36,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 21:11:36,419 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 278 [2020-09-24 21:11:36,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:11:36,449 INFO L225 Difference]: With dead ends: 1768 [2020-09-24 21:11:36,449 INFO L226 Difference]: Without dead ends: 1265 [2020-09-24 21:11:36,460 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:11:36,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2020-09-24 21:11:36,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1174. [2020-09-24 21:11:36,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1174 states. [2020-09-24 21:11:36,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 1288 transitions. [2020-09-24 21:11:36,637 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 1288 transitions. Word has length 278 [2020-09-24 21:11:36,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:11:36,639 INFO L479 AbstractCegarLoop]: Abstraction has 1174 states and 1288 transitions. [2020-09-24 21:11:36,639 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:11:36,639 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 1288 transitions. [2020-09-24 21:11:36,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2020-09-24 21:11:36,648 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:11:36,648 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:11:36,649 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:11:36,649 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:11:36,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:11:36,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1212320878, now seen corresponding path program 1 times [2020-09-24 21:11:36,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:11:36,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [840964850] [2020-09-24 21:11:36,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:11:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:36,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:37,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:37,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 311 [2020-09-24 21:11:37,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:37,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 762 [2020-09-24 21:11:37,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:37,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:11:37,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-09-24 21:11:37,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 21:11:37,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:37,864 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-24 21:11:37,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:11:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:37,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:38,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:38,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 21:11:38,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:38,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-09-24 21:11:38,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:38,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:11:38,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:38,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:11:38,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:38,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-24 21:11:38,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:38,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:38,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:38,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:11:38,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:38,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 21:11:38,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:38,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:11:38,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:38,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 21:11:38,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:11:38,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2020-09-24 21:11:38,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:38,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:38,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:38,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 21:11:38,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:38,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 21:11:38,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:38,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:11:38,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:38,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 21:11:38,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:11:38,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:11:38,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:38,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:38,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:38,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 21:11:38,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:38,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 21:11:38,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:38,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:11:38,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:38,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:11:38,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:38,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:11:38,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [840964850] [2020-09-24 21:11:38,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:11:38,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:11:38,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482962365] [2020-09-24 21:11:38,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:11:38,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:11:38,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:11:38,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:11:38,633 INFO L87 Difference]: Start difference. First operand 1174 states and 1288 transitions. Second operand 5 states. [2020-09-24 21:11:39,772 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-24 21:11:41,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:11:41,787 INFO L93 Difference]: Finished difference Result 1262 states and 1391 transitions. [2020-09-24 21:11:41,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 21:11:41,788 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 294 [2020-09-24 21:11:41,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:11:41,797 INFO L225 Difference]: With dead ends: 1262 [2020-09-24 21:11:41,797 INFO L226 Difference]: Without dead ends: 1259 [2020-09-24 21:11:41,799 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:11:41,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2020-09-24 21:11:41,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 1173. [2020-09-24 21:11:41,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1173 states. [2020-09-24 21:11:41,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1286 transitions. [2020-09-24 21:11:41,889 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1286 transitions. Word has length 294 [2020-09-24 21:11:41,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:11:41,890 INFO L479 AbstractCegarLoop]: Abstraction has 1173 states and 1286 transitions. [2020-09-24 21:11:41,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:11:41,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1286 transitions. [2020-09-24 21:11:41,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-09-24 21:11:41,896 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:11:41,896 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:11:41,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:11:41,897 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:11:41,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:11:41,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1073058360, now seen corresponding path program 1 times [2020-09-24 21:11:41,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:11:41,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [33552808] [2020-09-24 21:11:41,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:11:41,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:42,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:42,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:42,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 312 [2020-09-24 21:11:42,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:42,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 568 [2020-09-24 21:11:42,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:42,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:11:42,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 251 [2020-09-24 21:11:42,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 21:11:42,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:11:42,989 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-24 21:11:42,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:11:43,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:43,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:43,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:43,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 21:11:43,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:43,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292 [2020-09-24 21:11:43,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:43,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:11:43,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:43,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:11:43,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:11:43,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-24 21:11:43,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:43,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:43,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:43,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:11:43,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:43,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 21:11:43,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:43,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:11:43,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:43,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 21:11:43,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:43,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2020-09-24 21:11:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:43,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:43,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:43,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 21:11:43,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:43,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 21:11:43,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:43,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:11:43,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:43,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 21:11:43,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:43,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:11:43,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:43,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:43,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:43,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 21:11:43,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:43,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 21:11:43,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:43,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:11:43,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:43,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:11:43,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:43,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:11:43,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [33552808] [2020-09-24 21:11:43,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:11:43,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:11:43,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645247212] [2020-09-24 21:11:43,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:11:43,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:11:43,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:11:43,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:11:43,812 INFO L87 Difference]: Start difference. First operand 1173 states and 1286 transitions. Second operand 5 states. [2020-09-24 21:11:45,167 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-24 21:11:47,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:11:47,332 INFO L93 Difference]: Finished difference Result 1261 states and 1389 transitions. [2020-09-24 21:11:47,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 21:11:47,333 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 295 [2020-09-24 21:11:47,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:11:47,343 INFO L225 Difference]: With dead ends: 1261 [2020-09-24 21:11:47,344 INFO L226 Difference]: Without dead ends: 1258 [2020-09-24 21:11:47,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:11:47,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2020-09-24 21:11:47,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 1172. [2020-09-24 21:11:47,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1172 states. [2020-09-24 21:11:47,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1284 transitions. [2020-09-24 21:11:47,487 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1284 transitions. Word has length 295 [2020-09-24 21:11:47,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:11:47,488 INFO L479 AbstractCegarLoop]: Abstraction has 1172 states and 1284 transitions. [2020-09-24 21:11:47,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:11:47,488 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1284 transitions. [2020-09-24 21:11:47,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2020-09-24 21:11:47,494 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:11:47,494 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:11:47,494 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:11:47,495 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:11:47,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:11:47,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1094634161, now seen corresponding path program 1 times [2020-09-24 21:11:47,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:11:47,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1083006446] [2020-09-24 21:11:47,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:11:47,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:47,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:48,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:48,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 313 [2020-09-24 21:11:48,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:48,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 623 [2020-09-24 21:11:48,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:48,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:11:48,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-09-24 21:11:48,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 21:11:48,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:48,574 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-24 21:11:48,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:11:48,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:48,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:48,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:48,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 21:11:48,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:48,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-09-24 21:11:48,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:48,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:11:48,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:48,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:11:48,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:48,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-24 21:11:48,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:48,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:49,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:49,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:11:49,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:49,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 21:11:49,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:49,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:11:49,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:49,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:11:49,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:49,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2020-09-24 21:11:49,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:49,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:49,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:49,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 21:11:49,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:49,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 21:11:49,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:49,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:11:49,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:49,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 21:11:49,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:49,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:11:49,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:49,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:49,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:49,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 21:11:49,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:49,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:11:49,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:49,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:11:49,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:49,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:11:49,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:49,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:11:49,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1083006446] [2020-09-24 21:11:49,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:11:49,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:11:49,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593695997] [2020-09-24 21:11:49,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:11:49,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:11:49,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:11:49,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:11:49,159 INFO L87 Difference]: Start difference. First operand 1172 states and 1284 transitions. Second operand 5 states. [2020-09-24 21:11:50,276 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-24 21:11:52,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:11:52,283 INFO L93 Difference]: Finished difference Result 1262 states and 1388 transitions. [2020-09-24 21:11:52,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 21:11:52,284 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 296 [2020-09-24 21:11:52,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:11:52,301 INFO L225 Difference]: With dead ends: 1262 [2020-09-24 21:11:52,301 INFO L226 Difference]: Without dead ends: 1258 [2020-09-24 21:11:52,304 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:11:52,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2020-09-24 21:11:52,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 1170. [2020-09-24 21:11:52,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1170 states. [2020-09-24 21:11:52,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1170 states to 1170 states and 1279 transitions. [2020-09-24 21:11:52,395 INFO L78 Accepts]: Start accepts. Automaton has 1170 states and 1279 transitions. Word has length 296 [2020-09-24 21:11:52,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:11:52,396 INFO L479 AbstractCegarLoop]: Abstraction has 1170 states and 1279 transitions. [2020-09-24 21:11:52,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:11:52,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1170 states and 1279 transitions. [2020-09-24 21:11:52,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-09-24 21:11:52,401 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:11:52,402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:11:52,402 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 21:11:52,402 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:11:52,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:11:52,403 INFO L82 PathProgramCache]: Analyzing trace with hash -426369557, now seen corresponding path program 1 times [2020-09-24 21:11:52,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:11:52,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2024844619] [2020-09-24 21:11:52,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:11:52,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:52,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:53,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:53,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 314 [2020-09-24 21:11:53,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:53,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 600 [2020-09-24 21:11:53,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:53,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:11:53,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 253 [2020-09-24 21:11:53,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 21:11:53,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:11:53,439 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-24 21:11:53,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:11:53,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:53,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:53,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:53,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 21:11:53,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:53,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-24 21:11:53,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:53,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:11:53,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:53,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:11:53,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:53,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-24 21:11:53,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:53,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:53,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:53,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:11:53,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:53,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 21:11:53,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:53,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:11:53,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:53,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:11:53,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:53,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2020-09-24 21:11:53,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:53,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:53,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:53,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 21:11:53,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:53,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 21:11:53,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:53,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:11:53,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:53,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 21:11:53,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:11:53,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:11:53,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:53,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:53,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:53,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 21:11:53,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:53,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 21:11:53,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:53,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:11:53,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:53,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:11:53,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:11:53,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:11:53,963 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2024844619] [2020-09-24 21:11:53,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:11:53,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:11:53,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271451252] [2020-09-24 21:11:53,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:11:53,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:11:53,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:11:53,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:11:53,966 INFO L87 Difference]: Start difference. First operand 1170 states and 1279 transitions. Second operand 5 states. [2020-09-24 21:11:55,009 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-24 21:11:56,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:11:56,401 INFO L93 Difference]: Finished difference Result 1258 states and 1382 transitions. [2020-09-24 21:11:56,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 21:11:56,402 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 297 [2020-09-24 21:11:56,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:11:56,409 INFO L225 Difference]: With dead ends: 1258 [2020-09-24 21:11:56,409 INFO L226 Difference]: Without dead ends: 1241 [2020-09-24 21:11:56,410 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:11:56,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1241 states. [2020-09-24 21:11:56,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1241 to 717. [2020-09-24 21:11:56,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2020-09-24 21:11:56,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 770 transitions. [2020-09-24 21:11:56,460 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 770 transitions. Word has length 297 [2020-09-24 21:11:56,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:11:56,460 INFO L479 AbstractCegarLoop]: Abstraction has 717 states and 770 transitions. [2020-09-24 21:11:56,460 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:11:56,460 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 770 transitions. [2020-09-24 21:11:56,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2020-09-24 21:11:56,466 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:11:56,466 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:11:56,466 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 21:11:56,467 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:11:56,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:11:56,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1704679464, now seen corresponding path program 1 times [2020-09-24 21:11:56,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:11:56,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1997925554] [2020-09-24 21:11:56,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:11:56,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:56,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:56,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:57,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:59,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:59,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 358 [2020-09-24 21:11:59,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:11:59,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2921 [2020-09-24 21:11:59,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:59,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:11:59,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 319 [2020-09-24 21:11:59,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-24 21:11:59,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:59,776 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-24 21:11:59,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:11:59,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:59,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:59,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:00,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 21:12:00,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:12:00,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-09-24 21:12:00,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:00,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:12:00,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:12:00,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:12:00,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:12:00,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-24 21:12:00,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:00,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:00,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:00,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:12:00,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:12:00,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 21:12:00,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:00,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:12:00,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:12:00,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:12:00,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:12:00,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2020-09-24 21:12:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:00,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:00,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:00,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 21:12:00,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:12:00,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 21:12:00,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:00,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:12:00,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:12:00,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:12:00,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:12:00,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:12:00,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:00,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:00,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:00,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:12:00,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:12:00,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 21:12:00,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:00,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:12:00,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:12:00,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:12:00,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:12:00,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2020-09-24 21:12:00,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:00,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:00,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:00,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 21:12:00,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:12:00,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 21:12:00,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:00,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:12:00,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:12:00,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:12:00,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:12:00,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:12:00,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:00,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:00,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:00,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:12:00,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:12:00,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 21:12:00,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:00,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:12:00,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:12:00,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:12:00,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:12:00,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 21:12:00,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:00,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:00,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:00,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:12:00,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:12:00,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 21:12:00,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:00,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:12:00,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:12:00,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:12:00,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:12:00,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2020-09-24 21:12:00,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:00,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:00,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:00,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:12:00,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:12:00,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 21:12:00,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:00,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:12:00,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:12:00,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:12:00,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:12:00,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:12:00,413 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1997925554] [2020-09-24 21:12:00,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:12:00,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 21:12:00,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164864958] [2020-09-24 21:12:00,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 21:12:00,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:12:00,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 21:12:00,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:12:00,415 INFO L87 Difference]: Start difference. First operand 717 states and 770 transitions. Second operand 7 states. [2020-09-24 21:12:03,182 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-24 21:12:04,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:12:04,334 INFO L93 Difference]: Finished difference Result 893 states and 1002 transitions. [2020-09-24 21:12:04,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 21:12:04,335 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 329 [2020-09-24 21:12:04,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:12:04,336 INFO L225 Difference]: With dead ends: 893 [2020-09-24 21:12:04,337 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 21:12:04,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:12:04,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 21:12:04,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 21:12:04,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 21:12:04,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 21:12:04,340 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 329 [2020-09-24 21:12:04,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:12:04,341 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 21:12:04,341 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 21:12:04,341 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 21:12:04,341 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 21:12:04,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 21:12:04,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 21:12:04,691 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-24 21:12:05,010 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-24 21:12:05,320 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-24 21:12:05,697 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-24 21:12:05,988 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-24 21:12:06,277 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-24 21:12:06,562 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-24 21:12:06,877 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-24 21:12:07,161 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-24 21:12:07,464 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 176 [2020-09-24 21:12:07,755 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 176 [2020-09-24 21:12:08,054 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-24 21:12:08,335 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-24 21:12:08,870 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 44 [2020-09-24 21:12:09,369 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 44 [2020-09-24 21:12:09,649 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-24 21:12:09,928 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-24 21:12:10,239 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-24 21:12:10,379 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-09-24 21:12:10,660 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-24 21:12:10,951 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 176 [2020-09-24 21:12:11,242 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 176 [2020-09-24 21:12:11,545 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-24 21:12:11,669 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-24 21:12:12,169 WARN L193 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 44 [2020-09-24 21:12:12,662 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 44 [2020-09-24 21:12:12,799 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 174