/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label14.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 10:06:04,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 10:06:04,492 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 10:06:04,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 10:06:04,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 10:06:04,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 10:06:04,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 10:06:04,568 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 10:06:04,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 10:06:04,580 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 10:06:04,581 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 10:06:04,583 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 10:06:04,583 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 10:06:04,586 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 10:06:04,589 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 10:06:04,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 10:06:04,593 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 10:06:04,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 10:06:04,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 10:06:04,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 10:06:04,624 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 10:06:04,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 10:06:04,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 10:06:04,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 10:06:04,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 10:06:04,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 10:06:04,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 10:06:04,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 10:06:04,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 10:06:04,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 10:06:04,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 10:06:04,650 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 10:06:04,652 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 10:06:04,653 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 10:06:04,654 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 10:06:04,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 10:06:04,655 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 10:06:04,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 10:06:04,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 10:06:04,657 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 10:06:04,658 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 10:06:04,666 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 10:06:04,717 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 10:06:04,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 10:06:04,720 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 10:06:04,722 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 10:06:04,722 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 10:06:04,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 10:06:04,723 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 10:06:04,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 10:06:04,723 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 10:06:04,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 10:06:04,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 10:06:04,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 10:06:04,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 10:06:04,724 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 10:06:04,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 10:06:04,724 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 10:06:04,724 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 10:06:04,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 10:06:04,726 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 10:06:04,726 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 10:06:04,727 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 10:06:04,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 10:06:04,727 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 10:06:04,727 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 10:06:04,727 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 10:06:04,728 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 10:06:04,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 10:06:04,728 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 10:06:04,728 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 10:06:04,729 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 10:06:05,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 10:06:05,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 10:06:05,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 10:06:05,162 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 10:06:05,163 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 10:06:05,164 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label14.c [2020-10-28 10:06:05,247 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2fe359ad9/9261ad314ea14f39b8f2842c5958ae9b/FLAG0637482af [2020-10-28 10:06:05,950 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 10:06:05,953 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label14.c [2020-10-28 10:06:05,982 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2fe359ad9/9261ad314ea14f39b8f2842c5958ae9b/FLAG0637482af [2020-10-28 10:06:06,214 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2fe359ad9/9261ad314ea14f39b8f2842c5958ae9b [2020-10-28 10:06:06,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 10:06:06,227 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 10:06:06,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 10:06:06,233 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 10:06:06,238 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 10:06:06,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:06:06" (1/1) ... [2020-10-28 10:06:06,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e742bd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:06:06, skipping insertion in model container [2020-10-28 10:06:06,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:06:06" (1/1) ... [2020-10-28 10:06:06,258 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 10:06:06,330 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 10:06:06,852 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 10:06:06,880 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 10:06:07,045 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 10:06:07,064 INFO L208 MainTranslator]: Completed translation [2020-10-28 10:06:07,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:06:07 WrapperNode [2020-10-28 10:06:07,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 10:06:07,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 10:06:07,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 10:06:07,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 10:06:07,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:06:07" (1/1) ... [2020-10-28 10:06:07,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:06:07" (1/1) ... [2020-10-28 10:06:07,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:06:07" (1/1) ... [2020-10-28 10:06:07,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:06:07" (1/1) ... [2020-10-28 10:06:07,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:06:07" (1/1) ... [2020-10-28 10:06:07,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:06:07" (1/1) ... [2020-10-28 10:06:07,232 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:06:07" (1/1) ... [2020-10-28 10:06:07,243 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 10:06:07,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 10:06:07,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 10:06:07,244 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 10:06:07,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:06:07" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 10:06:07,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 10:06:07,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 10:06:07,322 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 10:06:07,322 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 10:06:07,323 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 10:06:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 10:06:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 10:06:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 10:06:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 10:06:07,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 10:06:07,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 10:06:07,324 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 10:06:07,324 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 10:06:07,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 10:06:07,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 10:06:07,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 10:06:07,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 10:06:07,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 10:06:07,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 10:06:08,510 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 10:06:08,511 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 10:06:08,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:06:08 BoogieIcfgContainer [2020-10-28 10:06:08,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 10:06:08,515 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 10:06:08,516 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 10:06:08,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 10:06:08,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 10:06:06" (1/3) ... [2020-10-28 10:06:08,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@994b566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:06:08, skipping insertion in model container [2020-10-28 10:06:08,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:06:07" (2/3) ... [2020-10-28 10:06:08,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@994b566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:06:08, skipping insertion in model container [2020-10-28 10:06:08,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:06:08" (3/3) ... [2020-10-28 10:06:08,523 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label14.c [2020-10-28 10:06:08,534 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 10:06:08,540 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 10:06:08,554 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 10:06:08,586 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 10:06:08,586 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 10:06:08,586 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 10:06:08,587 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 10:06:08,587 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 10:06:08,587 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 10:06:08,587 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 10:06:08,587 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 10:06:08,614 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-28 10:06:08,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-28 10:06:08,629 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:06:08,631 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] [2020-10-28 10:06:08,631 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:06:08,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:06:08,639 INFO L82 PathProgramCache]: Analyzing trace with hash 950448249, now seen corresponding path program 1 times [2020-10-28 10:06:08,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:06:08,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1802418961] [2020-10-28 10:06:08,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:06:09,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:06:09,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:09,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:11,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:06:11,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-28 10:06:11,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:06:11,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2412 [2020-10-28 10:06:11,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:06:11,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:06:11,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:06:11,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 10:06:11,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-28 10:06:11,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 10:06:11,777 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-28 10:06:11,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:06:11,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:06:11,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:11,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:06:11,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:06:11,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:06:11,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 10:06:11,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:06:11,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:06:11,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:06:11,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:06:11,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 10:06:11,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:06:11,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:06:11,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1802418961] [2020-10-28 10:06:11,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 10:06:11,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 10:06:11,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493446506] [2020-10-28 10:06:11,964 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 10:06:11,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:06:11,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 10:06:11,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 10:06:11,990 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 4 states. [2020-10-28 10:06:13,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:06:13,779 INFO L93 Difference]: Finished difference Result 562 states and 962 transitions. [2020-10-28 10:06:13,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:06:13,781 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 138 [2020-10-28 10:06:13,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:06:13,796 INFO L225 Difference]: With dead ends: 562 [2020-10-28 10:06:13,797 INFO L226 Difference]: Without dead ends: 287 [2020-10-28 10:06:13,804 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:06:13,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-28 10:06:13,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 281. [2020-10-28 10:06:13,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-28 10:06:13,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 403 transitions. [2020-10-28 10:06:13,932 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 403 transitions. Word has length 138 [2020-10-28 10:06:13,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:06:13,936 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 403 transitions. [2020-10-28 10:06:13,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 10:06:13,936 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 403 transitions. [2020-10-28 10:06:13,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-28 10:06:13,947 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:06:13,948 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:06:13,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 10:06:13,948 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:06:13,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:06:13,953 INFO L82 PathProgramCache]: Analyzing trace with hash -430951949, now seen corresponding path program 1 times [2020-10-28 10:06:13,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:06:13,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [180524947] [2020-10-28 10:06:13,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:06:14,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:06:14,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:14,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:14,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:15,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:15,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:06:15,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 10:06:15,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 10:06:15,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1813 [2020-10-28 10:06:15,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:06:15,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:06:15,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:06:15,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-28 10:06:15,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-28 10:06:15,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 10:06:16,071 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-28 10:06:16,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:06:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:06:16,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:16,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:06:16,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:06:16,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:06:16,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 10:06:16,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:06:16,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:06:16,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:06:16,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:06:16,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:06:16,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 10:06:16,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:06:16,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:06:16,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:16,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:06:16,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 10:06:16,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:06:16,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 10:06:16,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:06:16,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:06:16,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:06:16,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:06:16,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 10:06:16,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:06:16,282 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:06:16,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [180524947] [2020-10-28 10:06:16,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:06:16,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:06:16,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300293168] [2020-10-28 10:06:16,286 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:06:16,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:06:16,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:06:16,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:06:16,291 INFO L87 Difference]: Start difference. First operand 281 states and 403 transitions. Second operand 5 states. [2020-10-28 10:06:16,528 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-28 10:06:18,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:06:18,024 INFO L93 Difference]: Finished difference Result 836 states and 1221 transitions. [2020-10-28 10:06:18,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:06:18,025 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-10-28 10:06:18,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:06:18,037 INFO L225 Difference]: With dead ends: 836 [2020-10-28 10:06:18,037 INFO L226 Difference]: Without dead ends: 561 [2020-10-28 10:06:18,040 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:06:18,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2020-10-28 10:06:18,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 420. [2020-10-28 10:06:18,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2020-10-28 10:06:18,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 571 transitions. [2020-10-28 10:06:18,075 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 571 transitions. Word has length 148 [2020-10-28 10:06:18,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:06:18,076 INFO L481 AbstractCegarLoop]: Abstraction has 420 states and 571 transitions. [2020-10-28 10:06:18,076 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:06:18,077 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 571 transitions. [2020-10-28 10:06:18,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-28 10:06:18,079 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:06:18,079 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:06:18,080 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 10:06:18,080 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:06:18,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:06:18,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1734132746, now seen corresponding path program 1 times [2020-10-28 10:06:18,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:06:18,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1338066406] [2020-10-28 10:06:18,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:06:18,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:06:18,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:18,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:18,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:20,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:06:20,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-28 10:06:20,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 10:06:20,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2256 [2020-10-28 10:06:20,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:06:20,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:06:20,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:06:20,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-28 10:06:20,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-28 10:06:20,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 10:06:20,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:06:20,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:06:20,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:20,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:06:20,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:06:20,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:06:20,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 10:06:20,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:06:20,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:06:20,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:06:20,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:06:20,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:06:20,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:06:20,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:06:20,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:06:20,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:20,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:06:20,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 10:06:20,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:06:20,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 10:06:20,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:06:20,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:06:20,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:06:20,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:06:20,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 10:06:20,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:06:20,677 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:06:20,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1338066406] [2020-10-28 10:06:20,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:06:20,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:06:20,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599688156] [2020-10-28 10:06:20,679 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:06:20,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:06:20,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:06:20,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:06:20,683 INFO L87 Difference]: Start difference. First operand 420 states and 571 transitions. Second operand 5 states. [2020-10-28 10:06:22,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:06:22,160 INFO L93 Difference]: Finished difference Result 1249 states and 1735 transitions. [2020-10-28 10:06:22,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:06:22,160 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2020-10-28 10:06:22,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:06:22,167 INFO L225 Difference]: With dead ends: 1249 [2020-10-28 10:06:22,167 INFO L226 Difference]: Without dead ends: 835 [2020-10-28 10:06:22,169 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:06:22,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2020-10-28 10:06:22,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 831. [2020-10-28 10:06:22,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 831 states. [2020-10-28 10:06:22,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1093 transitions. [2020-10-28 10:06:22,221 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1093 transitions. Word has length 155 [2020-10-28 10:06:22,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:06:22,222 INFO L481 AbstractCegarLoop]: Abstraction has 831 states and 1093 transitions. [2020-10-28 10:06:22,226 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:06:22,227 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1093 transitions. [2020-10-28 10:06:22,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-28 10:06:22,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:06:22,235 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:06:22,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 10:06:22,236 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:06:22,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:06:22,237 INFO L82 PathProgramCache]: Analyzing trace with hash -1233622464, now seen corresponding path program 1 times [2020-10-28 10:06:22,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:06:22,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [199519955] [2020-10-28 10:06:22,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:06:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:06:22,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:22,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:22,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:24,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:25,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:27,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:06:27,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-28 10:06:27,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 10:06:27,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-28 10:06:27,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:06:27,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:06:27,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:06:27,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-28 10:06:27,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-28 10:06:27,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:06:27,493 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-28 10:06:27,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:06:27,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:06:27,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:27,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:06:27,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:06:27,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:06:27,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 10:06:27,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:06:27,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:06:27,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:06:27,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:06:27,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:06:27,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:06:27,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:06:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:06:27,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:27,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:06:27,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 10:06:27,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:06:27,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 10:06:27,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:06:27,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:06:27,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:06:27,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:06:27,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:06:27,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:06:27,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 10:06:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:06:27,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:27,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:06:27,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-28 10:06:27,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:06:27,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 10:06:27,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:06:27,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:06:27,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:06:27,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:06:27,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-28 10:06:27,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:06:27,666 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-28 10:06:27,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [199519955] [2020-10-28 10:06:27,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:06:27,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:06:27,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604101095] [2020-10-28 10:06:27,668 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:06:27,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:06:27,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:06:27,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:06:27,671 INFO L87 Difference]: Start difference. First operand 831 states and 1093 transitions. Second operand 5 states. [2020-10-28 10:06:29,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:06:29,539 INFO L93 Difference]: Finished difference Result 2482 states and 3335 transitions. [2020-10-28 10:06:29,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:06:29,540 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 173 [2020-10-28 10:06:29,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:06:29,551 INFO L225 Difference]: With dead ends: 2482 [2020-10-28 10:06:29,551 INFO L226 Difference]: Without dead ends: 1657 [2020-10-28 10:06:29,554 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:06:29,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1657 states. [2020-10-28 10:06:29,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1657 to 1518. [2020-10-28 10:06:29,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1518 states. [2020-10-28 10:06:29,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 1992 transitions. [2020-10-28 10:06:29,618 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 1992 transitions. Word has length 173 [2020-10-28 10:06:29,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:06:29,619 INFO L481 AbstractCegarLoop]: Abstraction has 1518 states and 1992 transitions. [2020-10-28 10:06:29,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:06:29,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 1992 transitions. [2020-10-28 10:06:29,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-10-28 10:06:29,626 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:06:29,626 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:06:29,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 10:06:29,627 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:06:29,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:06:29,628 INFO L82 PathProgramCache]: Analyzing trace with hash -622778339, now seen corresponding path program 1 times [2020-10-28 10:06:29,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:06:29,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [812100979] [2020-10-28 10:06:29,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:06:29,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:06:29,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:29,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:29,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:34,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:06:34,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-10-28 10:06:34,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 10:06:34,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-28 10:06:34,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:06:34,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:06:34,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:06:34,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 10:06:34,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-28 10:06:34,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:06:34,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:06:34,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:06:34,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:34,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:06:34,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:06:34,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:06:34,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 10:06:34,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:06:34,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:06:34,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:06:34,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:06:34,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 10:06:34,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:06:34,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:06:34,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:06:34,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:34,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:06:34,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-28 10:06:34,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:06:34,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-28 10:06:34,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:06:34,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:06:34,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:06:34,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:06:34,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-28 10:06:34,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:06:34,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-28 10:06:35,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:06:35,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:35,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:06:35,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 10:06:35,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:06:35,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 10:06:35,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:06:35,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:06:35,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:06:35,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-28 10:06:35,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:06:35,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:06:35,076 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 54 proven. 21 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 10:06:35,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [812100979] [2020-10-28 10:06:35,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:06:35,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:06:35,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546681446] [2020-10-28 10:06:35,078 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:06:35,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:06:35,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:06:35,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:06:35,079 INFO L87 Difference]: Start difference. First operand 1518 states and 1992 transitions. Second operand 7 states. [2020-10-28 10:06:37,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:06:37,924 INFO L93 Difference]: Finished difference Result 3690 states and 5199 transitions. [2020-10-28 10:06:37,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 10:06:37,925 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 198 [2020-10-28 10:06:37,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:06:37,942 INFO L225 Difference]: With dead ends: 3690 [2020-10-28 10:06:37,943 INFO L226 Difference]: Without dead ends: 2178 [2020-10-28 10:06:37,951 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 10:06:37,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2178 states. [2020-10-28 10:06:38,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2178 to 2104. [2020-10-28 10:06:38,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2104 states. [2020-10-28 10:06:38,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2104 states to 2104 states and 2756 transitions. [2020-10-28 10:06:38,059 INFO L78 Accepts]: Start accepts. Automaton has 2104 states and 2756 transitions. Word has length 198 [2020-10-28 10:06:38,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:06:38,060 INFO L481 AbstractCegarLoop]: Abstraction has 2104 states and 2756 transitions. [2020-10-28 10:06:38,060 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:06:38,060 INFO L276 IsEmpty]: Start isEmpty. Operand 2104 states and 2756 transitions. [2020-10-28 10:06:38,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-10-28 10:06:38,068 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:06:38,069 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:06:38,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 10:06:38,069 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:06:38,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:06:38,070 INFO L82 PathProgramCache]: Analyzing trace with hash -2100594275, now seen corresponding path program 1 times [2020-10-28 10:06:38,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:06:38,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [26163278] [2020-10-28 10:06:38,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:06:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:06:38,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:38,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:38,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:38,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:38,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:43,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:06:43,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-28 10:06:43,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 10:06:43,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-28 10:06:43,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:06:43,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:06:43,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:06:43,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-28 10:06:43,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-28 10:06:43,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:06:43,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:06:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:06:43,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:43,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:06:43,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:06:43,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:06:43,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 10:06:43,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:06:43,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:06:43,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:06:43,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:06:43,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:06:43,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:06:43,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:06:43,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:06:43,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:43,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:06:43,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 10:06:43,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:06:43,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 10:06:43,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:06:43,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:06:43,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:06:43,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:06:43,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:06:43,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:06:43,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 10:06:43,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:06:43,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:43,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:06:43,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 10:06:43,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:06:43,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 10:06:43,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:06:43,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:06:43,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:06:43,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:06:43,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 10:06:43,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:06:43,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-28 10:06:43,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:06:43,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:43,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:43,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:06:43,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-28 10:06:43,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:06:43,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-28 10:06:43,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:06:43,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:06:43,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:06:43,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:06:43,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-28 10:06:43,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:06:43,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-28 10:06:43,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:06:43,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:43,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:06:43,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 10:06:43,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:06:43,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-28 10:06:43,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:06:43,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:06:43,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:06:43,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:06:43,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-28 10:06:43,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:06:43,645 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 120 proven. 16 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-28 10:06:43,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [26163278] [2020-10-28 10:06:43,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:06:43,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 10:06:43,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140890844] [2020-10-28 10:06:43,646 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 10:06:43,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:06:43,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 10:06:43,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-28 10:06:43,648 INFO L87 Difference]: Start difference. First operand 2104 states and 2756 transitions. Second operand 8 states. [2020-10-28 10:06:46,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:06:46,159 INFO L93 Difference]: Finished difference Result 4622 states and 5962 transitions. [2020-10-28 10:06:46,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 10:06:46,160 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 214 [2020-10-28 10:06:46,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:06:46,160 INFO L225 Difference]: With dead ends: 4622 [2020-10-28 10:06:46,161 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 10:06:46,170 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-28 10:06:46,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 10:06:46,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 10:06:46,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 10:06:46,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 10:06:46,171 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 214 [2020-10-28 10:06:46,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:06:46,172 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 10:06:46,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 10:06:46,172 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 10:06:46,172 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 10:06:46,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 10:06:46,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 10:06:46,788 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 111 [2020-10-28 10:06:47,010 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 111 [2020-10-28 10:06:47,173 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 29 [2020-10-28 10:06:47,790 WARN L193 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 44 [2020-10-28 10:06:47,970 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 27 [2020-10-28 10:06:48,260 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 27 [2020-10-28 10:06:48,381 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 24 [2020-10-28 10:06:48,385 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-28 10:06:48,385 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-28 10:06:48,385 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-28 10:06:48,386 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-28 10:06:48,386 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 10:06:48,386 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a16~0 |old(~a16~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-28 10:06:48,386 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 10:06:48,386 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,386 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,387 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,387 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,387 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,387 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,387 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-28 10:06:48,387 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-28 10:06:48,387 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-28 10:06:48,387 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-28 10:06:48,388 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-28 10:06:48,388 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-28 10:06:48,388 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-28 10:06:48,388 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-28 10:06:48,388 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-28 10:06:48,388 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-28 10:06:48,388 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-28 10:06:48,389 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-28 10:06:48,389 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,389 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,389 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,389 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,389 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,389 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,389 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-28 10:06:48,389 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-28 10:06:48,390 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-28 10:06:48,390 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-28 10:06:48,390 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-28 10:06:48,390 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-28 10:06:48,390 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-28 10:06:48,390 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-28 10:06:48,390 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-28 10:06:48,390 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-28 10:06:48,390 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,391 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,391 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,391 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,391 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,391 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,391 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-28 10:06:48,391 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-28 10:06:48,391 INFO L270 CegarLoopResult]: At program point L571(line 571) the Hoare annotation is: (let ((.cse0 (not (= |old(~a7~0)| 1)))) (and (or .cse0 (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|))) (not (<= |old(~a7~0)| 0)) (or .cse0 (not (<= |old(~a20~0)| 0))) (or (not (= |old(~a8~0)| 13)) .cse0))) [2020-10-28 10:06:48,392 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-28 10:06:48,392 INFO L274 CegarLoopResult]: For program point L571-1(line 571) no Hoare annotation was computed. [2020-10-28 10:06:48,392 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-28 10:06:48,392 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-28 10:06:48,392 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-28 10:06:48,392 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-28 10:06:48,392 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-28 10:06:48,392 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-28 10:06:48,393 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-28 10:06:48,393 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-28 10:06:48,393 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-28 10:06:48,393 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-28 10:06:48,393 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-28 10:06:48,393 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,393 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,394 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,394 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,394 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,394 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-28 10:06:48,394 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-28 10:06:48,394 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-28 10:06:48,394 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-28 10:06:48,394 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-28 10:06:48,394 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-28 10:06:48,394 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-28 10:06:48,395 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-28 10:06:48,395 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-28 10:06:48,395 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,395 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,395 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,395 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,395 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,395 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-28 10:06:48,395 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-28 10:06:48,396 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-28 10:06:48,396 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-28 10:06:48,396 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-28 10:06:48,396 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-28 10:06:48,396 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-28 10:06:48,396 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-28 10:06:48,397 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-28 10:06:48,397 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-28 10:06:48,397 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-28 10:06:48,397 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-28 10:06:48,397 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-28 10:06:48,397 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,397 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,397 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,398 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,398 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,398 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-28 10:06:48,398 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-28 10:06:48,398 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-28 10:06:48,398 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,398 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,398 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-28 10:06:48,398 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-28 10:06:48,399 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-28 10:06:48,399 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-28 10:06:48,399 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-28 10:06:48,399 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-28 10:06:48,399 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,399 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,399 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,399 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,400 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-28 10:06:48,400 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,400 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-28 10:06:48,400 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-28 10:06:48,400 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-28 10:06:48,400 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-28 10:06:48,400 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-28 10:06:48,400 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-28 10:06:48,400 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-28 10:06:48,400 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-28 10:06:48,401 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-28 10:06:48,401 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-28 10:06:48,401 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-28 10:06:48,401 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-28 10:06:48,401 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-28 10:06:48,401 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,401 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,401 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,401 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,401 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,402 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-28 10:06:48,402 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-28 10:06:48,402 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-28 10:06:48,402 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-28 10:06:48,402 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-28 10:06:48,402 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-28 10:06:48,402 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-28 10:06:48,402 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-28 10:06:48,402 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,402 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,403 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse0 (= ~a7~0 |old(~a7~0)|)) (.cse1 (= ~a17~0 |old(~a17~0)|)) (.cse2 (= ~a21~0 |old(~a21~0)|)) (.cse3 (= ~a20~0 |old(~a20~0)|)) (.cse4 (= ~a16~0 |old(~a16~0)|)) (.cse7 (= ~a8~0 |old(~a8~0)|))) (let ((.cse6 (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse7)) (.cse5 (not (= |old(~a7~0)| 1)))) (and (or (not (= |old(~a8~0)| 13)) (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~a8~0 13)) .cse5) (or .cse5 .cse6 (not (<= |old(~a20~0)| 0))) (or (not (<= |old(~a7~0)| 0)) .cse6) (or .cse5 (and .cse0 .cse1 .cse2 .cse3 .cse7 (= 5 ~a16~0)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)))))) [2020-10-28 10:06:48,403 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,403 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,403 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,403 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-28 10:06:48,403 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-28 10:06:48,403 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-28 10:06:48,404 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-28 10:06:48,404 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-28 10:06:48,404 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-28 10:06:48,404 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-28 10:06:48,404 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-28 10:06:48,404 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-28 10:06:48,404 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-28 10:06:48,404 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-28 10:06:48,404 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,405 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,405 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,405 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,405 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-28 10:06:48,405 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,405 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,405 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-28 10:06:48,405 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-28 10:06:48,405 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-28 10:06:48,406 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-28 10:06:48,406 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-28 10:06:48,406 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-28 10:06:48,406 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-28 10:06:48,406 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-28 10:06:48,406 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-28 10:06:48,406 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-28 10:06:48,406 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-28 10:06:48,406 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-28 10:06:48,407 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,407 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,407 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,407 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,407 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,407 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-28 10:06:48,407 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:06:48,407 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-28 10:06:48,408 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-28 10:06:48,408 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-28 10:06:48,408 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-28 10:06:48,408 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-28 10:06:48,408 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-28 10:06:48,408 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-28 10:06:48,408 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-28 10:06:48,408 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-28 10:06:48,408 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-28 10:06:48,409 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-28 10:06:48,409 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-28 10:06:48,409 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-28 10:06:48,409 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-28 10:06:48,409 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 10:06:48,409 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (= ~a20~0 1) (= 5 ~a16~0)) [2020-10-28 10:06:48,409 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 10:06:48,409 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 10:06:48,410 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (not (<= |old(~a7~0)| 0)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 |old(~a8~0)|) (= 5 ~a16~0)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|))) [2020-10-28 10:06:48,410 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-28 10:06:48,410 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse0 (= ~a7~0 1))) (or (and .cse0 (= ~a20~0 1) (= 5 ~a16~0)) (not (<= |old(~a7~0)| 0)) (and .cse0 (= ~a8~0 13)) (not (= |old(~a20~0)| 1)) (<= ~a7~0 0) (and .cse0 (<= ~a20~0 0)) (not (= 5 |old(~a16~0)|)))) [2020-10-28 10:06:48,410 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-28 10:06:48,410 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-28 10:06:48,410 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse0 (= ~a7~0 1))) (or (and .cse0 (= ~a20~0 1) (= 5 ~a16~0)) (not (<= |old(~a7~0)| 0)) (and .cse0 (= ~a8~0 13)) (not (= |old(~a20~0)| 1)) (<= ~a7~0 0) (and .cse0 (<= ~a20~0 0)) (not (= 5 |old(~a16~0)|)))) [2020-10-28 10:06:48,411 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-28 10:06:48,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 10:06:48 BoogieIcfgContainer [2020-10-28 10:06:48,432 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 10:06:48,434 INFO L168 Benchmark]: Toolchain (without parser) took 42212.41 ms. Allocated memory was 151.0 MB in the beginning and 874.5 MB in the end (delta: 723.5 MB). Free memory was 123.3 MB in the beginning and 475.7 MB in the end (delta: -352.4 MB). Peak memory consumption was 372.1 MB. Max. memory is 8.0 GB. [2020-10-28 10:06:48,435 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 123.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 10:06:48,436 INFO L168 Benchmark]: CACSL2BoogieTranslator took 851.23 ms. Allocated memory is still 151.0 MB. Free memory was 122.6 MB in the beginning and 132.0 MB in the end (delta: -9.4 MB). Peak memory consumption was 31.3 MB. Max. memory is 8.0 GB. [2020-10-28 10:06:48,437 INFO L168 Benchmark]: Boogie Preprocessor took 158.95 ms. Allocated memory is still 151.0 MB. Free memory was 132.0 MB in the beginning and 127.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-28 10:06:48,438 INFO L168 Benchmark]: RCFGBuilder took 1269.37 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 127.0 MB in the beginning and 134.4 MB in the end (delta: -7.4 MB). Peak memory consumption was 83.4 MB. Max. memory is 8.0 GB. [2020-10-28 10:06:48,439 INFO L168 Benchmark]: TraceAbstraction took 39917.05 ms. Allocated memory was 181.4 MB in the beginning and 874.5 MB in the end (delta: 693.1 MB). Free memory was 133.9 MB in the beginning and 475.7 MB in the end (delta: -341.9 MB). Peak memory consumption was 350.7 MB. Max. memory is 8.0 GB. [2020-10-28 10:06:48,443 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 123.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 851.23 ms. Allocated memory is still 151.0 MB. Free memory was 122.6 MB in the beginning and 132.0 MB in the end (delta: -9.4 MB). Peak memory consumption was 31.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 158.95 ms. Allocated memory is still 151.0 MB. Free memory was 132.0 MB in the beginning and 127.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1269.37 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 127.0 MB in the beginning and 134.4 MB in the end (delta: -7.4 MB). Peak memory consumption was 83.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 39917.05 ms. Allocated memory was 181.4 MB in the beginning and 874.5 MB in the end (delta: 693.1 MB). Free memory was 133.9 MB in the beginning and 475.7 MB in the end (delta: -341.9 MB). Peak memory consumption was 350.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: (((((((a7 == 1 && a20 == 1) && 5 == a16) || !(\old(a7) <= 0)) || (a7 == 1 && a8 == 13)) || !(\old(a20) == 1)) || a7 <= 0) || (a7 == 1 && a20 <= 0)) || !(5 == \old(a16)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 37.5s, OverallIterations: 6, TraceHistogramMax: 5, AutomataDifference: 12.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 178 SDtfs, 2121 SDslu, 167 SDs, 0 SdLazy, 5141 SolverSat, 682 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 51 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2104occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 364 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 130 PreInvPairs, 174 NumberOfFragments, 361 HoareAnnotationTreeSize, 130 FomulaSimplifications, 49099 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 9 FomulaSimplificationsInter, 2922 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 23.7s InterpolantComputationTime, 1026 NumberOfCodeBlocks, 1026 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1020 ConstructedInterpolants, 0 QuantifiedInterpolants, 553030 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 254/295 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...