/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=SHALLOWEST --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/Problem10_label31.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 22:32:01,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 22:32:01,717 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 22:32:01,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 22:32:01,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 22:32:01,758 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 22:32:01,760 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 22:32:01,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 22:32:01,775 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 22:32:01,776 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 22:32:01,777 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 22:32:01,779 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 22:32:01,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 22:32:01,781 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 22:32:01,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 22:32:01,784 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 22:32:01,785 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 22:32:01,786 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 22:32:01,788 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 22:32:01,791 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 22:32:01,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 22:32:01,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 22:32:01,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 22:32:01,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 22:32:01,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 22:32:01,801 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 22:32:01,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 22:32:01,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 22:32:01,804 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 22:32:01,805 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 22:32:01,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 22:32:01,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 22:32:01,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 22:32:01,809 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 22:32:01,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 22:32:01,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 22:32:01,811 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 22:32:01,812 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 22:32:01,812 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 22:32:01,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 22:32:01,817 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 22:32:01,819 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 [2020-10-26 22:32:01,877 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 22:32:01,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 22:32:01,879 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 22:32:01,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 22:32:01,880 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 22:32:01,882 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 22:32:01,882 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 22:32:01,882 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 22:32:01,882 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 22:32:01,883 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 22:32:01,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 22:32:01,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 22:32:01,884 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 22:32:01,885 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 22:32:01,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 22:32:01,885 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 22:32:01,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 22:32:01,886 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 22:32:01,886 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 22:32:01,886 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 22:32:01,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 22:32:01,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 22:32:01,887 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 22:32:01,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 22:32:01,887 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 22:32:01,887 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 22:32:01,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 22:32:01,888 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 22:32:01,888 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 22:32:01,888 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 22:32:02,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 22:32:02,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 22:32:02,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 22:32:02,399 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 22:32:02,400 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 22:32:02,401 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label31.c [2020-10-26 22:32:02,480 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b336a36f0/ee591fbfe74243d59d19e0457e51a74f/FLAG9d6166a41 [2020-10-26 22:32:03,183 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 22:32:03,184 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label31.c [2020-10-26 22:32:03,213 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b336a36f0/ee591fbfe74243d59d19e0457e51a74f/FLAG9d6166a41 [2020-10-26 22:32:03,412 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b336a36f0/ee591fbfe74243d59d19e0457e51a74f [2020-10-26 22:32:03,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 22:32:03,423 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 22:32:03,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 22:32:03,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 22:32:03,429 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 22:32:03,430 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:32:03" (1/1) ... [2020-10-26 22:32:03,434 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d4d9770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:03, skipping insertion in model container [2020-10-26 22:32:03,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:32:03" (1/1) ... [2020-10-26 22:32:03,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 22:32:03,490 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 22:32:03,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:32:03,943 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 22:32:04,113 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:32:04,141 INFO L208 MainTranslator]: Completed translation [2020-10-26 22:32:04,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:04 WrapperNode [2020-10-26 22:32:04,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 22:32:04,143 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 22:32:04,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 22:32:04,144 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 22:32:04,161 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:04" (1/1) ... [2020-10-26 22:32:04,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:04" (1/1) ... [2020-10-26 22:32:04,188 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:04" (1/1) ... [2020-10-26 22:32:04,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:04" (1/1) ... [2020-10-26 22:32:04,230 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:04" (1/1) ... [2020-10-26 22:32:04,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:04" (1/1) ... [2020-10-26 22:32:04,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:04" (1/1) ... [2020-10-26 22:32:04,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 22:32:04,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 22:32:04,271 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 22:32:04,271 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 22:32:04,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:04" (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 [2020-10-26 22:32:04,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 22:32:04,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 22:32:04,372 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 22:32:04,372 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 22:32:04,373 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 22:32:04,373 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 22:32:04,373 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 22:32:04,374 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 22:32:04,374 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 22:32:04,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 22:32:04,375 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 22:32:04,375 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 22:32:04,376 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 22:32:04,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 22:32:04,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 22:32:04,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 22:32:04,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 22:32:04,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 22:32:04,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 22:32:05,970 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 22:32:05,970 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 22:32:05,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:32:05 BoogieIcfgContainer [2020-10-26 22:32:05,972 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 22:32:05,974 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 22:32:05,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 22:32:05,978 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 22:32:05,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:32:03" (1/3) ... [2020-10-26 22:32:05,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c69e8ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:32:05, skipping insertion in model container [2020-10-26 22:32:05,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:04" (2/3) ... [2020-10-26 22:32:05,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c69e8ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:32:05, skipping insertion in model container [2020-10-26 22:32:05,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:32:05" (3/3) ... [2020-10-26 22:32:05,982 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label31.c [2020-10-26 22:32:05,994 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 22:32:05,999 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 22:32:06,012 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 22:32:06,043 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 22:32:06,043 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 22:32:06,043 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 22:32:06,043 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 22:32:06,044 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 22:32:06,044 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 22:32:06,044 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 22:32:06,044 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 22:32:06,069 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-26 22:32:06,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-26 22:32:06,079 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:06,080 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] [2020-10-26 22:32:06,080 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:06,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:06,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1943288148, now seen corresponding path program 1 times [2020-10-26 22:32:06,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:06,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2127304544] [2020-10-26 22:32:06,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:06,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:06,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:06,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-26 22:32:06,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:06,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 636 [2020-10-26 22:32:06,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:06,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:32:06,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:32:06,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-26 22:32:06,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 22:32:07,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:07,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:07,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:07,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:07,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:07,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:07,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-26 22:32:07,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:07,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:07,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:07,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:32:07,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:32:07,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:32:07,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2127304544] [2020-10-26 22:32:07,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:32:07,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 22:32:07,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112028230] [2020-10-26 22:32:07,219 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 22:32:07,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:07,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 22:32:07,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 22:32:07,239 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 4 states. [2020-10-26 22:32:09,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:09,284 INFO L93 Difference]: Finished difference Result 586 states and 1012 transitions. [2020-10-26 22:32:09,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:32:09,286 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 50 [2020-10-26 22:32:09,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:09,302 INFO L225 Difference]: With dead ends: 586 [2020-10-26 22:32:09,302 INFO L226 Difference]: Without dead ends: 303 [2020-10-26 22:32:09,309 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:32:09,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-26 22:32:09,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2020-10-26 22:32:09,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-26 22:32:09,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 396 transitions. [2020-10-26 22:32:09,388 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 396 transitions. Word has length 50 [2020-10-26 22:32:09,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:09,389 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 396 transitions. [2020-10-26 22:32:09,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 22:32:09,390 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 396 transitions. [2020-10-26 22:32:09,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-26 22:32:09,397 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:09,398 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:32:09,400 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 22:32:09,400 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:09,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:09,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1652581128, now seen corresponding path program 1 times [2020-10-26 22:32:09,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:09,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2021534565] [2020-10-26 22:32:09,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:09,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:09,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:09,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:10,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:10,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-26 22:32:10,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:10,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1008 [2020-10-26 22:32:10,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:10,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 22:32:10,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:32:10,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-26 22:32:10,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:32:10,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:10,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:10,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:10,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:10,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:10,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:10,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 22:32:10,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:10,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:10,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:10,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:32:10,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:10,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:10,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:10,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:10,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:10,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:10,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:32:10,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:10,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-26 22:32:10,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:10,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:10,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:10,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-26 22:32:10,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:11,008 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 22:32:11,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2021534565] [2020-10-26 22:32:11,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:11,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 22:32:11,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422980224] [2020-10-26 22:32:11,012 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:11,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:11,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:11,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:11,018 INFO L87 Difference]: Start difference. First operand 299 states and 396 transitions. Second operand 7 states. [2020-10-26 22:32:13,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:13,672 INFO L93 Difference]: Finished difference Result 1180 states and 1607 transitions. [2020-10-26 22:32:13,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 22:32:13,674 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 120 [2020-10-26 22:32:13,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:13,684 INFO L225 Difference]: With dead ends: 1180 [2020-10-26 22:32:13,684 INFO L226 Difference]: Without dead ends: 887 [2020-10-26 22:32:13,686 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2020-10-26 22:32:13,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2020-10-26 22:32:13,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 738. [2020-10-26 22:32:13,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 738 states. [2020-10-26 22:32:13,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 993 transitions. [2020-10-26 22:32:13,751 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 993 transitions. Word has length 120 [2020-10-26 22:32:13,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:13,752 INFO L481 AbstractCegarLoop]: Abstraction has 738 states and 993 transitions. [2020-10-26 22:32:13,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:13,752 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 993 transitions. [2020-10-26 22:32:13,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-26 22:32:13,755 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:13,755 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:32:13,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 22:32:13,756 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:13,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:13,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1750764472, now seen corresponding path program 1 times [2020-10-26 22:32:13,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:13,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [252004742] [2020-10-26 22:32:13,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:13,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:13,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:13,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:14,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:14,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-26 22:32:14,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:14,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 437 [2020-10-26 22:32:14,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:14,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:14,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-26 22:32:14,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-26 22:32:14,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:14,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:14,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:14,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:14,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:14,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:14,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 22:32:14,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:14,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:14,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:14,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:14,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:14,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:14,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:14,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:14,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:14,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-26 22:32:14,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:14,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-26 22:32:14,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:14,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:14,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:14,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:32:14,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:14,660 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 41 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:32:14,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [252004742] [2020-10-26 22:32:14,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:14,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:32:14,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344556658] [2020-10-26 22:32:14,663 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:32:14,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:14,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:32:14,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:32:14,666 INFO L87 Difference]: Start difference. First operand 738 states and 993 transitions. Second operand 5 states. [2020-10-26 22:32:15,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:15,952 INFO L93 Difference]: Finished difference Result 1499 states and 2028 transitions. [2020-10-26 22:32:15,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:32:15,953 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2020-10-26 22:32:15,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:15,959 INFO L225 Difference]: With dead ends: 1499 [2020-10-26 22:32:15,960 INFO L226 Difference]: Without dead ends: 744 [2020-10-26 22:32:15,962 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:32:15,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2020-10-26 22:32:16,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 738. [2020-10-26 22:32:16,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 738 states. [2020-10-26 22:32:16,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 987 transitions. [2020-10-26 22:32:16,043 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 987 transitions. Word has length 129 [2020-10-26 22:32:16,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:16,044 INFO L481 AbstractCegarLoop]: Abstraction has 738 states and 987 transitions. [2020-10-26 22:32:16,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:32:16,044 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 987 transitions. [2020-10-26 22:32:16,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-10-26 22:32:16,054 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:16,054 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, 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, 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] [2020-10-26 22:32:16,055 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 22:32:16,055 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:16,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:16,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1168283780, now seen corresponding path program 1 times [2020-10-26 22:32:16,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:16,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1322565235] [2020-10-26 22:32:16,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:16,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:16,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:17,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:17,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:17,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-26 22:32:17,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:32:17,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1768 [2020-10-26 22:32:17,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:17,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:17,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:32:17,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-26 22:32:17,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 22:32:18,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:18,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:18,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:18,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:18,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:18,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:18,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:32:18,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:18,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:18,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:18,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:18,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:18,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:18,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:18,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:18,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:18,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:32:18,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:18,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-26 22:32:18,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:18,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:18,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:18,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-26 22:32:18,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:18,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:32:18,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:18,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:18,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:18,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:32:18,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:18,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-26 22:32:18,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:18,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:18,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:18,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:32:18,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:18,441 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 151 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:32:18,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1322565235] [2020-10-26 22:32:18,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:18,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:18,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217831499] [2020-10-26 22:32:18,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:18,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:18,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:18,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:18,444 INFO L87 Difference]: Start difference. First operand 738 states and 987 transitions. Second operand 7 states. [2020-10-26 22:32:20,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:20,631 INFO L93 Difference]: Finished difference Result 1790 states and 2476 transitions. [2020-10-26 22:32:20,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:32:20,633 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 202 [2020-10-26 22:32:20,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:20,640 INFO L225 Difference]: With dead ends: 1790 [2020-10-26 22:32:20,640 INFO L226 Difference]: Without dead ends: 1058 [2020-10-26 22:32:20,642 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:32:20,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2020-10-26 22:32:20,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 891. [2020-10-26 22:32:20,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2020-10-26 22:32:20,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1166 transitions. [2020-10-26 22:32:20,683 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1166 transitions. Word has length 202 [2020-10-26 22:32:20,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:20,684 INFO L481 AbstractCegarLoop]: Abstraction has 891 states and 1166 transitions. [2020-10-26 22:32:20,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:20,684 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1166 transitions. [2020-10-26 22:32:20,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-10-26 22:32:20,688 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:20,689 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, 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, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:32:20,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 22:32:20,689 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:20,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:20,690 INFO L82 PathProgramCache]: Analyzing trace with hash 591327560, now seen corresponding path program 1 times [2020-10-26 22:32:20,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:20,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1536459604] [2020-10-26 22:32:20,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:20,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:20,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:20,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:21,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:23,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:25,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:25,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-10-26 22:32:25,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:32:25,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4879 [2020-10-26 22:32:25,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:25,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:32:25,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:32:25,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:32:25,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:25,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:25,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:25,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:25,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:25,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:25,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:25,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 22:32:25,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:25,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:25,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:25,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:32:25,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:25,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:25,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:25,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:25,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:32:25,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:25,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-26 22:32:25,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:25,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:25,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:25,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-26 22:32:25,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:26,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-26 22:32:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:26,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:26,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:26,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:32:26,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:26,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-26 22:32:26,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:26,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:26,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:32:26,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:26,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:26,186 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 84 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 22:32:26,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1536459604] [2020-10-26 22:32:26,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:26,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:26,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355356419] [2020-10-26 22:32:26,187 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:26,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:26,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:26,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:26,189 INFO L87 Difference]: Start difference. First operand 891 states and 1166 transitions. Second operand 7 states. [2020-10-26 22:32:28,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:28,011 INFO L93 Difference]: Finished difference Result 1947 states and 2535 transitions. [2020-10-26 22:32:28,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 22:32:28,015 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 209 [2020-10-26 22:32:28,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:28,023 INFO L225 Difference]: With dead ends: 1947 [2020-10-26 22:32:28,023 INFO L226 Difference]: Without dead ends: 1062 [2020-10-26 22:32:28,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-26 22:32:28,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2020-10-26 22:32:28,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 1044. [2020-10-26 22:32:28,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2020-10-26 22:32:28,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1333 transitions. [2020-10-26 22:32:28,080 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1333 transitions. Word has length 209 [2020-10-26 22:32:28,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:28,080 INFO L481 AbstractCegarLoop]: Abstraction has 1044 states and 1333 transitions. [2020-10-26 22:32:28,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:28,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1333 transitions. [2020-10-26 22:32:28,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-10-26 22:32:28,085 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:28,086 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:32:28,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 22:32:28,086 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:28,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:28,087 INFO L82 PathProgramCache]: Analyzing trace with hash -2033011972, now seen corresponding path program 1 times [2020-10-26 22:32:28,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:28,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1400268553] [2020-10-26 22:32:28,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:28,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:28,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:28,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:29,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:30,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:30,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-10-26 22:32:30,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:32:30,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1963 [2020-10-26 22:32:30,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:30,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:30,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:32:30,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-26 22:32:30,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:30,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:30,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:30,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:30,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:30,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:30,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:30,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:32:30,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:30,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:30,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:30,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:30,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:30,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:30,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:30,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:30,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:30,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:32:30,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:30,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-26 22:32:30,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:30,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:30,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:30,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:32:30,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:30,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:32:30,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:30,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:30,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:30,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:32:30,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:30,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-26 22:32:30,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:30,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:30,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:30,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:32:30,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:30,803 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 163 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:32:30,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1400268553] [2020-10-26 22:32:30,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:30,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:32:30,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450189171] [2020-10-26 22:32:30,806 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:32:30,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:30,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:32:30,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:32:30,808 INFO L87 Difference]: Start difference. First operand 1044 states and 1333 transitions. Second operand 8 states. [2020-10-26 22:32:33,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:33,297 INFO L93 Difference]: Finished difference Result 2539 states and 3479 transitions. [2020-10-26 22:32:33,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:32:33,298 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 247 [2020-10-26 22:32:33,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:33,333 INFO L225 Difference]: With dead ends: 2539 [2020-10-26 22:32:33,333 INFO L226 Difference]: Without dead ends: 1644 [2020-10-26 22:32:33,336 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-10-26 22:32:33,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1644 states. [2020-10-26 22:32:33,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1644 to 1640. [2020-10-26 22:32:33,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1640 states. [2020-10-26 22:32:33,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1640 states to 1640 states and 2156 transitions. [2020-10-26 22:32:33,407 INFO L78 Accepts]: Start accepts. Automaton has 1640 states and 2156 transitions. Word has length 247 [2020-10-26 22:32:33,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:33,408 INFO L481 AbstractCegarLoop]: Abstraction has 1640 states and 2156 transitions. [2020-10-26 22:32:33,408 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:32:33,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1640 states and 2156 transitions. [2020-10-26 22:32:33,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-10-26 22:32:33,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:33,417 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:32:33,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 22:32:33,417 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:33,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:33,418 INFO L82 PathProgramCache]: Analyzing trace with hash -222822496, now seen corresponding path program 1 times [2020-10-26 22:32:33,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:33,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1780613916] [2020-10-26 22:32:33,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:33,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:33,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:33,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:33,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:36,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:36,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 320 [2020-10-26 22:32:36,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:32:36,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3183 [2020-10-26 22:32:36,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:36,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-26 22:32:36,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:32:36,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-26 22:32:36,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:36,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:36,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:36,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:36,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:36,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:36,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:36,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:32:36,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:36,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:36,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:36,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:36,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:36,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:36,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:36,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:37,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:37,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:32:37,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:37,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-26 22:32:37,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:37,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:37,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:37,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:32:37,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:37,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:32:37,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:37,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:37,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:37,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 22:32:37,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:37,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-10-26 22:32:37,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:37,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-26 22:32:37,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:37,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-26 22:32:37,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:37,703 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 181 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:32:37,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1780613916] [2020-10-26 22:32:37,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:37,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:32:37,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123215276] [2020-10-26 22:32:37,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:32:37,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:37,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:32:37,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:32:37,708 INFO L87 Difference]: Start difference. First operand 1640 states and 2156 transitions. Second operand 8 states. [2020-10-26 22:32:40,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:40,327 INFO L93 Difference]: Finished difference Result 4200 states and 5699 transitions. [2020-10-26 22:32:40,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:32:40,328 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 306 [2020-10-26 22:32:40,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:40,347 INFO L225 Difference]: With dead ends: 4200 [2020-10-26 22:32:40,347 INFO L226 Difference]: Without dead ends: 2689 [2020-10-26 22:32:40,354 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-26 22:32:40,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2689 states. [2020-10-26 22:32:40,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2689 to 2385. [2020-10-26 22:32:40,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2385 states. [2020-10-26 22:32:40,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2385 states to 2385 states and 3251 transitions. [2020-10-26 22:32:40,462 INFO L78 Accepts]: Start accepts. Automaton has 2385 states and 3251 transitions. Word has length 306 [2020-10-26 22:32:40,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:40,463 INFO L481 AbstractCegarLoop]: Abstraction has 2385 states and 3251 transitions. [2020-10-26 22:32:40,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:32:40,464 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states and 3251 transitions. [2020-10-26 22:32:40,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-10-26 22:32:40,473 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:40,473 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:40,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 22:32:40,474 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:40,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:40,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1273978744, now seen corresponding path program 1 times [2020-10-26 22:32:40,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:40,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [744053850] [2020-10-26 22:32:40,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:40,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:40,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:40,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:41,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:43,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:43,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:45,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:45,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 358 [2020-10-26 22:32:45,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 22:32:45,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-26 22:32:45,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:45,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:45,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:32:45,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-26 22:32:45,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:45,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:45,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:45,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:45,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:45,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:45,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:32:45,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:45,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:45,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:45,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:45,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:45,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:45,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:45,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:45,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:45,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:32:45,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:45,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-26 22:32:45,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:45,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:45,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:45,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:32:45,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:45,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:32:45,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:45,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:46,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:46,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-26 22:32:46,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:46,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-26 22:32:46,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:46,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:46,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:46,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-26 22:32:46,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:46,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-26 22:32:46,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:46,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:46,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:46,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:32:46,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:46,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-26 22:32:46,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:46,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:46,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-26 22:32:46,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:46,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:46,426 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 214 proven. 86 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-10-26 22:32:46,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [744053850] [2020-10-26 22:32:46,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:46,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:46,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419107491] [2020-10-26 22:32:46,429 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:46,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:46,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:46,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:46,430 INFO L87 Difference]: Start difference. First operand 2385 states and 3251 transitions. Second operand 7 states. [2020-10-26 22:32:48,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:48,966 INFO L93 Difference]: Finished difference Result 5376 states and 7407 transitions. [2020-10-26 22:32:48,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 22:32:48,967 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 342 [2020-10-26 22:32:48,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:48,989 INFO L225 Difference]: With dead ends: 5376 [2020-10-26 22:32:48,990 INFO L226 Difference]: Without dead ends: 3140 [2020-10-26 22:32:48,998 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-26 22:32:49,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3140 states. [2020-10-26 22:32:49,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3140 to 3128. [2020-10-26 22:32:49,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3128 states. [2020-10-26 22:32:49,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 4052 transitions. [2020-10-26 22:32:49,125 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 4052 transitions. Word has length 342 [2020-10-26 22:32:49,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:49,126 INFO L481 AbstractCegarLoop]: Abstraction has 3128 states and 4052 transitions. [2020-10-26 22:32:49,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:49,126 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 4052 transitions. [2020-10-26 22:32:49,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2020-10-26 22:32:49,137 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:49,138 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:49,138 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 22:32:49,138 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:49,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:49,139 INFO L82 PathProgramCache]: Analyzing trace with hash -177993088, now seen corresponding path program 1 times [2020-10-26 22:32:49,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:49,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1554622632] [2020-10-26 22:32:49,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:49,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:49,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:49,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:50,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:50,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:51,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:51,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 377 [2020-10-26 22:32:51,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:32:51,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1881 [2020-10-26 22:32:51,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:51,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:51,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 233 [2020-10-26 22:32:51,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-26 22:32:51,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:51,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:51,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:51,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:51,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:51,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:51,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:51,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:32:51,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:51,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:51,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:51,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:51,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:51,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:51,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:51,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:51,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:51,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:32:51,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:51,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-26 22:32:51,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:51,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:51,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:51,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:51,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:51,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:32:51,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:51,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:51,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:51,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-26 22:32:51,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:51,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-26 22:32:51,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:51,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:51,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:51,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-26 22:32:51,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:51,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-26 22:32:51,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:51,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:51,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:51,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:32:51,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:51,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-26 22:32:51,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:51,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:51,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:51,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-26 22:32:51,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:51,731 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 302 proven. 2 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-26 22:32:51,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1554622632] [2020-10-26 22:32:51,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:51,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:51,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189172320] [2020-10-26 22:32:51,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:51,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:51,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:51,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:51,740 INFO L87 Difference]: Start difference. First operand 3128 states and 4052 transitions. Second operand 7 states. [2020-10-26 22:32:54,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:54,336 INFO L93 Difference]: Finished difference Result 7137 states and 9465 transitions. [2020-10-26 22:32:54,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 22:32:54,337 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 361 [2020-10-26 22:32:54,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:54,365 INFO L225 Difference]: With dead ends: 7137 [2020-10-26 22:32:54,365 INFO L226 Difference]: Without dead ends: 4158 [2020-10-26 22:32:54,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-26 22:32:54,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4158 states. [2020-10-26 22:32:54,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4158 to 3722. [2020-10-26 22:32:54,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3722 states. [2020-10-26 22:32:54,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3722 states to 3722 states and 4812 transitions. [2020-10-26 22:32:54,512 INFO L78 Accepts]: Start accepts. Automaton has 3722 states and 4812 transitions. Word has length 361 [2020-10-26 22:32:54,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:54,513 INFO L481 AbstractCegarLoop]: Abstraction has 3722 states and 4812 transitions. [2020-10-26 22:32:54,514 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:54,514 INFO L276 IsEmpty]: Start isEmpty. Operand 3722 states and 4812 transitions. [2020-10-26 22:32:54,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2020-10-26 22:32:54,524 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:54,525 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:32:54,525 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 22:32:54,525 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:54,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:54,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1227929244, now seen corresponding path program 1 times [2020-10-26 22:32:54,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:54,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [117701151] [2020-10-26 22:32:54,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:54,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:54,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:54,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:55,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:55,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 380 [2020-10-26 22:32:55,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:55,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 688 [2020-10-26 22:32:55,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:55,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:55,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 328 [2020-10-26 22:32:55,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-26 22:32:55,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:55,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:55,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:55,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:55,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:55,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:55,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:55,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 22:32:55,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:55,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:55,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:55,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:55,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:55,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:55,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:55,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:55,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:55,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:32:55,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:55,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 22:32:55,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:55,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:55,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:55,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:55,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:55,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:32:55,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:55,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:55,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:55,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-26 22:32:55,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:55,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 22:32:55,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:55,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:55,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:55,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:55,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:55,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-26 22:32:55,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:55,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:55,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:55,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-26 22:32:55,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:55,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-26 22:32:55,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:55,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:55,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:55,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-26 22:32:55,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:55,984 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 129 proven. 3 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2020-10-26 22:32:55,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [117701151] [2020-10-26 22:32:55,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:55,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 22:32:55,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030316257] [2020-10-26 22:32:55,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 22:32:55,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:55,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 22:32:55,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:32:55,988 INFO L87 Difference]: Start difference. First operand 3722 states and 4812 transitions. Second operand 6 states. [2020-10-26 22:32:58,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:58,530 INFO L93 Difference]: Finished difference Result 7438 states and 9648 transitions. [2020-10-26 22:32:58,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 22:32:58,531 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 364 [2020-10-26 22:32:58,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:58,553 INFO L225 Difference]: With dead ends: 7438 [2020-10-26 22:32:58,553 INFO L226 Difference]: Without dead ends: 3865 [2020-10-26 22:32:58,566 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:32:58,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3865 states. [2020-10-26 22:32:58,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3865 to 3428. [2020-10-26 22:32:58,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3428 states. [2020-10-26 22:32:58,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3428 states to 3428 states and 4113 transitions. [2020-10-26 22:32:58,674 INFO L78 Accepts]: Start accepts. Automaton has 3428 states and 4113 transitions. Word has length 364 [2020-10-26 22:32:58,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:58,675 INFO L481 AbstractCegarLoop]: Abstraction has 3428 states and 4113 transitions. [2020-10-26 22:32:58,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 22:32:58,675 INFO L276 IsEmpty]: Start isEmpty. Operand 3428 states and 4113 transitions. [2020-10-26 22:32:58,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2020-10-26 22:32:58,687 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:58,687 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:32:58,688 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 22:32:58,688 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:58,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:58,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1094797788, now seen corresponding path program 1 times [2020-10-26 22:32:58,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:58,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1035312498] [2020-10-26 22:32:58,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:58,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:58,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:00,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:01,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:01,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 396 [2020-10-26 22:33:01,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:33:01,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2236 [2020-10-26 22:33:01,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:01,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:01,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 223 [2020-10-26 22:33:01,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-26 22:33:01,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:33:01,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:01,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:01,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:01,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:01,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:01,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:01,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 22:33:01,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:01,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:01,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:01,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:01,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:01,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:01,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:01,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:01,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:01,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:33:01,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:01,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 22:33:01,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:01,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:01,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:01,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:01,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:01,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:33:01,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:01,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:01,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:01,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:33:01,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:01,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-26 22:33:01,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:01,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:01,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:01,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-26 22:33:01,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:01,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-26 22:33:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:01,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:01,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:01,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-26 22:33:01,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:01,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-26 22:33:01,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:01,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:01,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:33:01,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-26 22:33:01,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:02,018 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 321 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-26 22:33:02,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1035312498] [2020-10-26 22:33:02,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:02,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:33:02,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844323203] [2020-10-26 22:33:02,020 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:33:02,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:02,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:33:02,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:33:02,021 INFO L87 Difference]: Start difference. First operand 3428 states and 4113 transitions. Second operand 7 states. [2020-10-26 22:33:04,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:04,223 INFO L93 Difference]: Finished difference Result 6860 states and 8291 transitions. [2020-10-26 22:33:04,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 22:33:04,224 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 380 [2020-10-26 22:33:04,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:04,242 INFO L225 Difference]: With dead ends: 6860 [2020-10-26 22:33:04,242 INFO L226 Difference]: Without dead ends: 3581 [2020-10-26 22:33:04,251 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-26 22:33:04,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3581 states. [2020-10-26 22:33:04,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3581 to 3428. [2020-10-26 22:33:04,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3428 states. [2020-10-26 22:33:04,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3428 states to 3428 states and 4096 transitions. [2020-10-26 22:33:04,347 INFO L78 Accepts]: Start accepts. Automaton has 3428 states and 4096 transitions. Word has length 380 [2020-10-26 22:33:04,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:04,348 INFO L481 AbstractCegarLoop]: Abstraction has 3428 states and 4096 transitions. [2020-10-26 22:33:04,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:33:04,349 INFO L276 IsEmpty]: Start isEmpty. Operand 3428 states and 4096 transitions. [2020-10-26 22:33:04,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2020-10-26 22:33:04,361 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:04,362 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 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] [2020-10-26 22:33:04,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 22:33:04,362 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:04,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:04,363 INFO L82 PathProgramCache]: Analyzing trace with hash 2108391096, now seen corresponding path program 1 times [2020-10-26 22:33:04,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:04,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1068685220] [2020-10-26 22:33:04,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:04,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:05,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:06,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:06,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 406 [2020-10-26 22:33:06,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:33:06,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2085 [2020-10-26 22:33:06,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:06,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:06,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 354 [2020-10-26 22:33:06,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-26 22:33:06,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:06,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:06,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:06,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:06,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:06,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:06,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:06,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 22:33:06,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:06,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:06,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:06,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:06,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:06,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:06,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:06,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:06,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:06,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:33:06,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:06,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-26 22:33:06,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:06,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:06,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:06,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:06,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:06,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:33:06,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:06,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:06,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:06,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-26 22:33:06,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:06,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 22:33:06,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:06,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:06,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:06,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:06,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:06,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-26 22:33:06,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:06,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:07,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:07,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-26 22:33:07,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:07,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-26 22:33:07,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:07,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:07,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:07,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-26 22:33:07,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:07,299 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 129 proven. 3 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2020-10-26 22:33:07,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1068685220] [2020-10-26 22:33:07,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:07,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:33:07,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937416582] [2020-10-26 22:33:07,300 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:33:07,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:07,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:33:07,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:33:07,301 INFO L87 Difference]: Start difference. First operand 3428 states and 4096 transitions. Second operand 5 states. [2020-10-26 22:33:08,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:08,569 INFO L93 Difference]: Finished difference Result 6579 states and 7845 transitions. [2020-10-26 22:33:08,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:33:08,570 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 390 [2020-10-26 22:33:08,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:08,572 INFO L225 Difference]: With dead ends: 6579 [2020-10-26 22:33:08,572 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 22:33:08,585 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:33:08,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 22:33:08,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 22:33:08,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 22:33:08,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 22:33:08,586 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 390 [2020-10-26 22:33:08,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:08,586 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 22:33:08,587 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:33:08,587 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 22:33:08,587 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 22:33:08,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 22:33:08,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 22:33:08,831 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 147 [2020-10-26 22:33:09,374 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 147 [2020-10-26 22:33:09,838 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 48 [2020-10-26 22:33:10,954 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 235 DAG size of output: 72 [2020-10-26 22:33:11,314 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 55 [2020-10-26 22:33:11,631 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 48 [2020-10-26 22:33:11,635 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 22:33:11,636 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 22:33:11,636 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 22:33:11,636 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 22:33:11,636 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:33:11,636 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|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-26 22:33:11,636 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:33:11,637 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-26 22:33:11,637 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-26 22:33:11,637 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-26 22:33:11,637 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-26 22:33:11,637 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-26 22:33:11,637 INFO L270 CegarLoopResult]: At program point L135(line 135) the Hoare annotation is: (let ((.cse2 (not (<= |old(~a10~0)| 1))) (.cse3 (not (= 9 |old(~a19~0)|))) (.cse0 (not (= 14 ~a4~0))) (.cse1 (not (= ~a12~0 0)))) (and (or (not (<= 6 |old(~a19~0)|)) .cse0 (not (<= |old(~a1~0)| 33)) (not (<= |old(~a19~0)| 6)) (not (<= 0 (+ |old(~a1~0)| 12))) .cse1) (or (not (<= 8 |old(~a19~0)|)) .cse0 (not (<= 1 |old(~a10~0)|)) .cse2 .cse1) (not (<= 4 |old(~a10~0)|)) (or .cse0 (not (<= |old(~a1~0)| 505272)) .cse2 .cse1) (or (not (<= 505225 |old(~a1~0)|)) .cse3) (or (not (<= 9 |old(~a19~0)|)) .cse2) (not (= 2 |old(~a10~0)|)) (or .cse3 .cse0 .cse1))) [2020-10-26 22:33:11,638 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-26 22:33:11,638 INFO L274 CegarLoopResult]: For program point L135-1(line 135) no Hoare annotation was computed. [2020-10-26 22:33:11,638 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-26 22:33:11,638 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-26 22:33:11,638 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-26 22:33:11,638 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-26 22:33:11,638 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-26 22:33:11,638 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-26 22:33:11,639 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,639 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,639 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,639 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,639 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,639 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,639 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-26 22:33:11,639 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-26 22:33:11,639 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-26 22:33:11,640 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-26 22:33:11,640 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-26 22:33:11,640 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-26 22:33:11,640 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-26 22:33:11,640 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-26 22:33:11,640 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-26 22:33:11,640 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-26 22:33:11,640 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-26 22:33:11,641 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,641 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,641 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,641 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,641 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,641 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-26 22:33:11,641 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-26 22:33:11,641 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-26 22:33:11,641 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-26 22:33:11,642 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-26 22:33:11,642 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-26 22:33:11,642 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-26 22:33:11,642 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-26 22:33:11,642 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-26 22:33:11,642 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-26 22:33:11,642 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-26 22:33:11,642 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-26 22:33:11,642 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-26 22:33:11,643 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-26 22:33:11,643 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,643 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,643 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,643 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,643 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,643 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-26 22:33:11,643 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-26 22:33:11,643 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-26 22:33:11,644 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-26 22:33:11,644 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-26 22:33:11,644 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-26 22:33:11,644 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-26 22:33:11,644 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-26 22:33:11,644 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-26 22:33:11,644 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-26 22:33:11,644 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,644 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,645 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,645 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,645 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,645 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-26 22:33:11,645 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-26 22:33:11,645 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-26 22:33:11,645 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-26 22:33:11,645 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-26 22:33:11,645 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-26 22:33:11,645 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-26 22:33:11,646 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-26 22:33:11,646 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-26 22:33:11,646 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-26 22:33:11,646 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-26 22:33:11,646 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-26 22:33:11,646 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-26 22:33:11,646 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,646 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,646 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,646 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,647 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,647 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-26 22:33:11,647 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-26 22:33:11,647 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-26 22:33:11,647 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-26 22:33:11,647 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-26 22:33:11,647 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,647 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,647 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-26 22:33:11,647 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-26 22:33:11,648 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-26 22:33:11,648 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-26 22:33:11,648 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,648 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,648 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,648 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,648 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,648 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-26 22:33:11,648 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-26 22:33:11,648 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-26 22:33:11,649 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-26 22:33:11,649 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-26 22:33:11,649 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-26 22:33:11,649 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-26 22:33:11,649 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-26 22:33:11,649 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-26 22:33:11,649 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-26 22:33:11,649 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-26 22:33:11,650 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-26 22:33:11,650 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-26 22:33:11,650 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,650 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,650 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,650 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,650 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-26 22:33:11,650 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,650 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,650 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-26 22:33:11,651 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-26 22:33:11,651 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-26 22:33:11,651 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-26 22:33:11,651 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-26 22:33:11,651 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-26 22:33:11,651 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-26 22:33:11,651 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-26 22:33:11,651 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-26 22:33:11,651 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-26 22:33:11,651 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-26 22:33:11,651 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-26 22:33:11,651 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-26 22:33:11,652 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,652 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,652 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,652 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,652 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,652 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,652 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-26 22:33:11,653 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse5 (= ~a1~0 |old(~a1~0)|)) (.cse6 (= ~a10~0 |old(~a10~0)|))) (let ((.cse1 (not (= 9 |old(~a19~0)|))) (.cse0 (and .cse5 (= ~a19~0 |old(~a19~0)|) .cse6)) (.cse2 (not (= 14 ~a4~0))) (.cse4 (not (<= |old(~a10~0)| 1))) (.cse3 (not (= ~a12~0 0)))) (and (or (not (<= 505225 |old(~a1~0)|)) .cse0 .cse1) (or .cse0 .cse1 .cse2 .cse3) (or (not (<= 9 |old(~a19~0)|)) .cse0 .cse4) (or (not (<= 6 |old(~a19~0)|)) .cse2 (not (<= |old(~a1~0)| 33)) (not (<= |old(~a19~0)| 6)) (and (<= 6 ~a19~0) .cse5 (<= ~a19~0 6) .cse6) (not (<= 0 (+ |old(~a1~0)| 12))) .cse3) (or (not (<= 4 |old(~a10~0)|)) .cse0) (or (not (<= |old(~a19~0)| 8)) (not (<= 8 |old(~a19~0)|)) .cse2 (and (<= 8 ~a19~0) (<= ~a19~0 8) .cse5 .cse6) (not (<= 1 |old(~a10~0)|)) .cse4 .cse3) (or .cse0 (not (= 2 |old(~a10~0)|))) (or .cse0 .cse2 (not (<= |old(~a1~0)| 505272)) .cse4 .cse3)))) [2020-10-26 22:33:11,653 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-26 22:33:11,653 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-26 22:33:11,653 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-26 22:33:11,653 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-26 22:33:11,653 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-26 22:33:11,653 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-26 22:33:11,653 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-26 22:33:11,653 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-26 22:33:11,653 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-26 22:33:11,654 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-26 22:33:11,654 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-26 22:33:11,654 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-26 22:33:11,654 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-26 22:33:11,654 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,654 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,654 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,654 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,654 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,655 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,655 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-26 22:33:11,655 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-26 22:33:11,655 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-26 22:33:11,655 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-26 22:33:11,655 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-26 22:33:11,655 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-26 22:33:11,655 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-26 22:33:11,655 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-26 22:33:11,655 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-26 22:33:11,655 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-26 22:33:11,656 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-26 22:33:11,656 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-26 22:33:11,656 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-26 22:33:11,656 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,656 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,656 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,656 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,656 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,656 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,656 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-26 22:33:11,656 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-26 22:33:11,657 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-26 22:33:11,657 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-26 22:33:11,657 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-26 22:33:11,657 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-26 22:33:11,657 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-26 22:33:11,657 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-26 22:33:11,657 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-26 22:33:11,657 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-26 22:33:11,657 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-26 22:33:11,657 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-26 22:33:11,657 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,658 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,658 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,658 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,658 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,658 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:11,658 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:33:11,658 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 14 ~a4~0) (= ~a10~0 0) (= ~a12~0 0) (= ~a19~0 9) (= 23 ~a1~0)) [2020-10-26 22:33:11,658 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 22:33:11,658 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:33:11,659 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (not (= 9 |old(~a19~0)|)) (not (= 14 ~a4~0)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|)) (and (= 23 ~a1~0) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (= ~a12~0 0))) [2020-10-26 22:33:11,659 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-26 22:33:11,659 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (let ((.cse0 (<= ~a10~0 1))) (or (and (<= 0 (+ ~a1~0 12)) (<= 6 ~a19~0) (<= ~a1~0 33) (<= ~a19~0 6)) (and (<= ~a1~0 505272) .cse0) (and (<= 9 ~a19~0) .cse0) (= ~a10~0 2) (<= 4 ~a10~0) (not (= 9 |old(~a19~0)|)) (= ~a19~0 9) (not (= 14 ~a4~0)) (not (= 0 |old(~a10~0)|)) (and (<= 8 ~a19~0) (<= 1 ~a10~0) .cse0) (not (= 23 |old(~a1~0)|)) (not (= ~a12~0 0)))) [2020-10-26 22:33:11,659 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-26 22:33:11,659 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-26 22:33:11,659 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse0 (<= ~a10~0 1))) (or (and (<= 0 (+ ~a1~0 12)) (<= 6 ~a19~0) (<= ~a1~0 33) (<= ~a19~0 6)) (and (<= ~a1~0 505272) .cse0) (and (<= 9 ~a19~0) .cse0) (= ~a10~0 2) (<= 4 ~a10~0) (not (= 9 |old(~a19~0)|)) (= ~a19~0 9) (not (= 14 ~a4~0)) (not (= 0 |old(~a10~0)|)) (and (<= 8 ~a19~0) (<= 1 ~a10~0) .cse0) (not (= 23 |old(~a1~0)|)) (not (= ~a12~0 0)))) [2020-10-26 22:33:11,659 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-26 22:33:11,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:33:11 BoogieIcfgContainer [2020-10-26 22:33:11,681 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 22:33:11,682 INFO L168 Benchmark]: Toolchain (without parser) took 68264.39 ms. Allocated memory was 151.0 MB in the beginning and 1.1 GB in the end (delta: 979.4 MB). Free memory was 125.2 MB in the beginning and 859.1 MB in the end (delta: -733.9 MB). Peak memory consumption was 675.5 MB. Max. memory is 8.0 GB. [2020-10-26 22:33:11,683 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory was 122.4 MB in the beginning and 122.3 MB in the end (delta: 138.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 22:33:11,684 INFO L168 Benchmark]: CACSL2BoogieTranslator took 717.63 ms. Allocated memory is still 151.0 MB. Free memory was 124.6 MB in the beginning and 131.3 MB in the end (delta: -6.7 MB). Peak memory consumption was 31.2 MB. Max. memory is 8.0 GB. [2020-10-26 22:33:11,685 INFO L168 Benchmark]: Boogie Preprocessor took 126.76 ms. Allocated memory is still 151.0 MB. Free memory was 131.3 MB in the beginning and 126.7 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-26 22:33:11,685 INFO L168 Benchmark]: RCFGBuilder took 1701.57 ms. Allocated memory is still 151.0 MB. Free memory was 126.7 MB in the beginning and 105.3 MB in the end (delta: 21.3 MB). Peak memory consumption was 83.9 MB. Max. memory is 8.0 GB. [2020-10-26 22:33:11,686 INFO L168 Benchmark]: TraceAbstraction took 65706.48 ms. Allocated memory was 151.0 MB in the beginning and 1.1 GB in the end (delta: 979.4 MB). Free memory was 104.8 MB in the beginning and 859.1 MB in the end (delta: -754.3 MB). Peak memory consumption was 655.0 MB. Max. memory is 8.0 GB. [2020-10-26 22:33:11,689 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory was 122.4 MB in the beginning and 122.3 MB in the end (delta: 138.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 717.63 ms. Allocated memory is still 151.0 MB. Free memory was 124.6 MB in the beginning and 131.3 MB in the end (delta: -6.7 MB). Peak memory consumption was 31.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 126.76 ms. Allocated memory is still 151.0 MB. Free memory was 131.3 MB in the beginning and 126.7 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1701.57 ms. Allocated memory is still 151.0 MB. Free memory was 126.7 MB in the beginning and 105.3 MB in the end (delta: 21.3 MB). Peak memory consumption was 83.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 65706.48 ms. Allocated memory was 151.0 MB in the beginning and 1.1 GB in the end (delta: 979.4 MB). Free memory was 104.8 MB in the beginning and 859.1 MB in the end (delta: -754.3 MB). Peak memory consumption was 655.0 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: 584]: Loop Invariant Derived loop invariant: (((((((((((((0 <= a1 + 12 && 6 <= a19) && a1 <= 33) && a19 <= 6) || (a1 <= 505272 && a10 <= 1)) || (9 <= a19 && a10 <= 1)) || a10 == 2) || 4 <= a10) || !(9 == \old(a19))) || a19 == 9) || !(14 == a4)) || !(0 == \old(a10))) || ((8 <= a19 && 1 <= a10) && a10 <= 1)) || !(23 == \old(a1))) || !(a12 == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 62.5s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 26.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 326 SDtfs, 4795 SDslu, 412 SDs, 0 SdLazy, 11470 SolverSat, 1399 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 196 GetRequests, 101 SyntacticMatches, 3 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3722occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 12 MinimizatonAttempts, 1690 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 344 PreInvPairs, 394 NumberOfFragments, 550 HoareAnnotationTreeSize, 344 FomulaSimplifications, 18666 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 9 FomulaSimplificationsInter, 6014 FormulaSimplificationTreeSizeReductionInter, 2.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 32.3s InterpolantComputationTime, 3100 NumberOfCodeBlocks, 3100 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 3088 ConstructedInterpolants, 0 QuantifiedInterpolants, 2497386 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 1 PerfectInterpolantSequences, 2518/2747 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...