/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 15:00:22,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 15:00:22,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 15:00:23,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 15:00:23,054 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 15:00:23,061 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 15:00:23,063 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 15:00:23,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 15:00:23,078 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 15:00:23,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 15:00:23,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 15:00:23,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 15:00:23,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 15:00:23,090 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 15:00:23,094 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 15:00:23,096 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 15:00:23,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 15:00:23,101 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 15:00:23,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 15:00:23,116 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 15:00:23,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 15:00:23,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 15:00:23,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 15:00:23,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 15:00:23,124 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 15:00:23,124 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 15:00:23,125 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 15:00:23,126 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 15:00:23,126 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 15:00:23,127 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 15:00:23,128 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 15:00:23,129 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 15:00:23,129 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 15:00:23,130 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 15:00:23,131 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 15:00:23,132 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 15:00:23,132 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 15:00:23,133 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 15:00:23,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 15:00:23,134 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 15:00:23,135 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 15:00:23,136 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 15:00:23,164 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 15:00:23,164 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 15:00:23,165 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 15:00:23,166 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 15:00:23,166 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 15:00:23,166 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 15:00:23,166 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 15:00:23,167 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 15:00:23,167 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 15:00:23,167 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 15:00:23,167 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 15:00:23,167 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 15:00:23,168 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 15:00:23,168 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 15:00:23,168 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 15:00:23,168 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 15:00:23,168 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 15:00:23,168 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 15:00:23,169 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 15:00:23,169 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 15:00:23,169 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 15:00:23,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 15:00:23,169 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 15:00:23,170 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 15:00:23,170 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 15:00:23,170 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 15:00:23,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 15:00:23,170 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 15:00:23,171 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 15:00:23,171 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 15:00:23,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 15:00:23,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 15:00:23,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 15:00:23,605 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 15:00:23,606 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 15:00:23,607 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c [2020-10-28 15:00:23,690 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ac5b8a093/41c3dd88477c48f7877416c5b922beb1/FLAG9cfd41181 [2020-10-28 15:00:24,488 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 15:00:24,489 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c [2020-10-28 15:00:24,515 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ac5b8a093/41c3dd88477c48f7877416c5b922beb1/FLAG9cfd41181 [2020-10-28 15:00:24,705 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ac5b8a093/41c3dd88477c48f7877416c5b922beb1 [2020-10-28 15:00:24,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 15:00:24,718 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 15:00:24,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 15:00:24,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 15:00:24,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 15:00:24,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 03:00:24" (1/1) ... [2020-10-28 15:00:24,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2df18323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:00:24, skipping insertion in model container [2020-10-28 15:00:24,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 03:00:24" (1/1) ... [2020-10-28 15:00:24,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 15:00:24,843 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 15:00:25,488 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 15:00:25,507 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 15:00:25,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 15:00:25,821 INFO L208 MainTranslator]: Completed translation [2020-10-28 15:00:25,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:00:25 WrapperNode [2020-10-28 15:00:25,822 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 15:00:25,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 15:00:25,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 15:00:25,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 15:00:25,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:00:25" (1/1) ... [2020-10-28 15:00:25,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:00:25" (1/1) ... [2020-10-28 15:00:25,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:00:25" (1/1) ... [2020-10-28 15:00:25,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:00:25" (1/1) ... [2020-10-28 15:00:25,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:00:25" (1/1) ... [2020-10-28 15:00:25,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:00:25" (1/1) ... [2020-10-28 15:00:25,931 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:00:25" (1/1) ... [2020-10-28 15:00:25,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 15:00:25,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 15:00:25,944 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 15:00:25,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 15:00:25,945 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:00:25" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 15:00:26,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 15:00:26,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 15:00:26,040 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 15:00:26,041 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 15:00:26,041 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 15:00:26,042 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 15:00:26,042 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 15:00:26,042 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 15:00:26,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 15:00:26,042 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 15:00:26,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-28 15:00:26,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 15:00:26,044 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 15:00:26,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 15:00:26,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 15:00:26,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 15:00:26,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 15:00:26,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 15:00:26,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 15:00:27,713 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 15:00:27,713 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-28 15:00:27,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 03:00:27 BoogieIcfgContainer [2020-10-28 15:00:27,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 15:00:27,718 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 15:00:27,718 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 15:00:27,722 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 15:00:27,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 03:00:24" (1/3) ... [2020-10-28 15:00:27,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@279dfc4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 03:00:27, skipping insertion in model container [2020-10-28 15:00:27,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:00:25" (2/3) ... [2020-10-28 15:00:27,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@279dfc4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 03:00:27, skipping insertion in model container [2020-10-28 15:00:27,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 03:00:27" (3/3) ... [2020-10-28 15:00:27,725 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.p+nlh-reducer.c [2020-10-28 15:00:27,738 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 15:00:27,744 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 15:00:27,758 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 15:00:27,788 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 15:00:27,788 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 15:00:27,788 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 15:00:27,788 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 15:00:27,788 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 15:00:27,789 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 15:00:27,789 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 15:00:27,789 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 15:00:27,814 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states. [2020-10-28 15:00:27,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-28 15:00:27,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:00:27,820 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:00:27,821 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:00:27,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:00:27,826 INFO L82 PathProgramCache]: Analyzing trace with hash -576203994, now seen corresponding path program 1 times [2020-10-28 15:00:27,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:00:27,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [431083246] [2020-10-28 15:00:27,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:00:28,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:28,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:28,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:00:28,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-28 15:00:28,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:00:28,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 317 [2020-10-28 15:00:28,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:00:28,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:00:28,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 15:00:28,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 15:00:28,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 15:00:28,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 15:00:28,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:00:28,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:28,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:28,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:00:28,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:00:28,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:00:28,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 15:00:28,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:00:28,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:00:28,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:00:28,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:00:28,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:00:28,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:00:28,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:00:28,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [431083246] [2020-10-28 15:00:28,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:00:28,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 15:00:28,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700641519] [2020-10-28 15:00:28,533 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 15:00:28,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:00:28,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 15:00:28,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 15:00:28,550 INFO L87 Difference]: Start difference. First operand 313 states. Second operand 5 states. [2020-10-28 15:00:30,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:00:30,869 INFO L93 Difference]: Finished difference Result 332 states and 610 transitions. [2020-10-28 15:00:30,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 15:00:30,875 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-28 15:00:30,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:00:30,890 INFO L225 Difference]: With dead ends: 332 [2020-10-28 15:00:30,890 INFO L226 Difference]: Without dead ends: 293 [2020-10-28 15:00:30,894 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-28 15:00:30,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-10-28 15:00:30,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 289. [2020-10-28 15:00:30,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2020-10-28 15:00:30,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 426 transitions. [2020-10-28 15:00:30,968 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 426 transitions. Word has length 12 [2020-10-28 15:00:30,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:00:30,968 INFO L481 AbstractCegarLoop]: Abstraction has 289 states and 426 transitions. [2020-10-28 15:00:30,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 15:00:30,969 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 426 transitions. [2020-10-28 15:00:30,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-28 15:00:30,969 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:00:30,970 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:00:30,970 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 15:00:30,970 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:00:30,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:00:30,971 INFO L82 PathProgramCache]: Analyzing trace with hash -683488697, now seen corresponding path program 1 times [2020-10-28 15:00:30,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:00:30,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1527336905] [2020-10-28 15:00:30,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:00:30,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:30,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:31,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:31,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:00:31,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 15:00:31,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:00:31,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-10-28 15:00:31,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:00:31,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:00:31,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 15:00:31,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 15:00:31,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 15:00:31,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:00:31,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:00:31,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:31,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:31,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:00:31,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:00:31,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:00:31,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 15:00:31,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:00:31,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:00:31,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:00:31,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:00:31,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:00:31,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:00:31,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:00:31,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1527336905] [2020-10-28 15:00:31,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:00:31,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 15:00:31,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312622817] [2020-10-28 15:00:31,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 15:00:31,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:00:31,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 15:00:31,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 15:00:31,297 INFO L87 Difference]: Start difference. First operand 289 states and 426 transitions. Second operand 5 states. [2020-10-28 15:00:32,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:00:32,866 INFO L93 Difference]: Finished difference Result 299 states and 437 transitions. [2020-10-28 15:00:32,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 15:00:32,867 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-28 15:00:32,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:00:32,870 INFO L225 Difference]: With dead ends: 299 [2020-10-28 15:00:32,870 INFO L226 Difference]: Without dead ends: 290 [2020-10-28 15:00:32,871 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-28 15:00:32,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-10-28 15:00:32,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 285. [2020-10-28 15:00:32,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 285 states. [2020-10-28 15:00:32,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 361 transitions. [2020-10-28 15:00:32,893 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 361 transitions. Word has length 13 [2020-10-28 15:00:32,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:00:32,893 INFO L481 AbstractCegarLoop]: Abstraction has 285 states and 361 transitions. [2020-10-28 15:00:32,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 15:00:32,893 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 361 transitions. [2020-10-28 15:00:32,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-28 15:00:32,894 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:00:32,894 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:00:32,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 15:00:32,895 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:00:32,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:00:32,895 INFO L82 PathProgramCache]: Analyzing trace with hash -179739162, now seen corresponding path program 1 times [2020-10-28 15:00:32,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:00:32,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1907296197] [2020-10-28 15:00:32,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:00:32,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:32,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:32,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:00:32,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 15:00:32,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:00:32,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-28 15:00:32,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:00:32,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:00:32,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 15:00:32,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 15:00:32,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 15:00:32,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:00:33,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:00:33,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:33,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:33,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:00:33,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:00:33,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:00:33,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 15:00:33,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:00:33,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:00:33,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:00:33,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:00:33,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:00:33,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:00:33,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:00:33,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1907296197] [2020-10-28 15:00:33,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:00:33,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 15:00:33,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325573897] [2020-10-28 15:00:33,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 15:00:33,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:00:33,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 15:00:33,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 15:00:33,049 INFO L87 Difference]: Start difference. First operand 285 states and 361 transitions. Second operand 5 states. [2020-10-28 15:00:34,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:00:34,262 INFO L93 Difference]: Finished difference Result 287 states and 362 transitions. [2020-10-28 15:00:34,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 15:00:34,262 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-28 15:00:34,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:00:34,265 INFO L225 Difference]: With dead ends: 287 [2020-10-28 15:00:34,265 INFO L226 Difference]: Without dead ends: 284 [2020-10-28 15:00:34,269 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 15:00:34,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-10-28 15:00:34,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 284. [2020-10-28 15:00:34,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-10-28 15:00:34,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 359 transitions. [2020-10-28 15:00:34,288 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 359 transitions. Word has length 13 [2020-10-28 15:00:34,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:00:34,288 INFO L481 AbstractCegarLoop]: Abstraction has 284 states and 359 transitions. [2020-10-28 15:00:34,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 15:00:34,288 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 359 transitions. [2020-10-28 15:00:34,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-28 15:00:34,289 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:00:34,289 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:00:34,289 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 15:00:34,290 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:00:34,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:00:34,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1277965293, now seen corresponding path program 1 times [2020-10-28 15:00:34,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:00:34,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1527768359] [2020-10-28 15:00:34,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:00:34,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:34,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:34,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:00:34,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 15:00:34,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:00:34,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-28 15:00:34,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:00:34,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:00:34,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 15:00:34,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 15:00:34,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:00:34,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:00:34,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:00:34,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:34,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:34,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:00:34,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:00:34,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:00:34,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 15:00:34,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:00:34,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:00:34,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:00:34,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:00:34,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:00:34,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:00:34,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:00:34,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1527768359] [2020-10-28 15:00:34,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:00:34,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 15:00:34,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267636184] [2020-10-28 15:00:34,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 15:00:34,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:00:34,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 15:00:34,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 15:00:34,446 INFO L87 Difference]: Start difference. First operand 284 states and 359 transitions. Second operand 5 states. [2020-10-28 15:00:35,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:00:35,668 INFO L93 Difference]: Finished difference Result 316 states and 403 transitions. [2020-10-28 15:00:35,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 15:00:35,670 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-28 15:00:35,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:00:35,672 INFO L225 Difference]: With dead ends: 316 [2020-10-28 15:00:35,673 INFO L226 Difference]: Without dead ends: 313 [2020-10-28 15:00:35,674 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 15:00:35,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2020-10-28 15:00:35,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 287. [2020-10-28 15:00:35,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2020-10-28 15:00:35,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 362 transitions. [2020-10-28 15:00:35,705 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 362 transitions. Word has length 14 [2020-10-28 15:00:35,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:00:35,705 INFO L481 AbstractCegarLoop]: Abstraction has 287 states and 362 transitions. [2020-10-28 15:00:35,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 15:00:35,705 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 362 transitions. [2020-10-28 15:00:35,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-28 15:00:35,706 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:00:35,706 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:00:35,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 15:00:35,707 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:00:35,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:00:35,707 INFO L82 PathProgramCache]: Analyzing trace with hash 203473271, now seen corresponding path program 1 times [2020-10-28 15:00:35,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:00:35,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1332848929] [2020-10-28 15:00:35,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:00:35,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:35,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:35,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:36,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:00:36,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-28 15:00:36,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:00:36,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 323 [2020-10-28 15:00:36,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:00:36,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:00:36,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 15:00:36,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 15:00:36,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 15:00:36,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 15:00:36,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:00:36,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:36,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:36,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:00:36,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:00:36,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:00:36,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 15:00:36,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:00:36,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:00:36,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:00:36,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:00:36,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:00:36,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:00:36,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:00:36,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1332848929] [2020-10-28 15:00:36,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:00:36,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 15:00:36,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177587313] [2020-10-28 15:00:36,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 15:00:36,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:00:36,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 15:00:36,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 15:00:36,148 INFO L87 Difference]: Start difference. First operand 287 states and 362 transitions. Second operand 5 states. [2020-10-28 15:00:37,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:00:37,217 INFO L93 Difference]: Finished difference Result 289 states and 363 transitions. [2020-10-28 15:00:37,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 15:00:37,218 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-28 15:00:37,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:00:37,221 INFO L225 Difference]: With dead ends: 289 [2020-10-28 15:00:37,222 INFO L226 Difference]: Without dead ends: 286 [2020-10-28 15:00:37,223 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 15:00:37,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-10-28 15:00:37,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2020-10-28 15:00:37,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-10-28 15:00:37,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 360 transitions. [2020-10-28 15:00:37,243 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 360 transitions. Word has length 16 [2020-10-28 15:00:37,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:00:37,245 INFO L481 AbstractCegarLoop]: Abstraction has 286 states and 360 transitions. [2020-10-28 15:00:37,245 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 15:00:37,245 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 360 transitions. [2020-10-28 15:00:37,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-28 15:00:37,247 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:00:37,247 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:00:37,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 15:00:37,248 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:00:37,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:00:37,248 INFO L82 PathProgramCache]: Analyzing trace with hash 2011697194, now seen corresponding path program 1 times [2020-10-28 15:00:37,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:00:37,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1890631286] [2020-10-28 15:00:37,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:00:37,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:37,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:37,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:37,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:37,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:00:37,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 15:00:37,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 15:00:37,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 505 [2020-10-28 15:00:37,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:00:37,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:00:37,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 15:00:37,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 15:00:37,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 15:00:37,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:00:37,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:00:37,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:37,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:37,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:00:37,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:00:37,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:00:37,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 15:00:37,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:00:37,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:00:37,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:00:37,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:00:37,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:00:37,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 15:00:37,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:00:37,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1890631286] [2020-10-28 15:00:37,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:00:37,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 15:00:37,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489708879] [2020-10-28 15:00:37,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 15:00:37,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:00:37,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 15:00:37,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 15:00:37,861 INFO L87 Difference]: Start difference. First operand 286 states and 360 transitions. Second operand 5 states. [2020-10-28 15:00:39,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:00:39,037 INFO L93 Difference]: Finished difference Result 288 states and 361 transitions. [2020-10-28 15:00:39,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 15:00:39,038 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-28 15:00:39,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:00:39,041 INFO L225 Difference]: With dead ends: 288 [2020-10-28 15:00:39,042 INFO L226 Difference]: Without dead ends: 283 [2020-10-28 15:00:39,042 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 15:00:39,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2020-10-28 15:00:39,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2020-10-28 15:00:39,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-10-28 15:00:39,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 356 transitions. [2020-10-28 15:00:39,054 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 356 transitions. Word has length 17 [2020-10-28 15:00:39,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:00:39,055 INFO L481 AbstractCegarLoop]: Abstraction has 283 states and 356 transitions. [2020-10-28 15:00:39,055 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 15:00:39,055 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 356 transitions. [2020-10-28 15:00:39,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-28 15:00:39,056 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:00:39,056 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:00:39,057 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 15:00:39,057 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:00:39,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:00:39,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1651686570, now seen corresponding path program 1 times [2020-10-28 15:00:39,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:00:39,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [913863303] [2020-10-28 15:00:39,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:00:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:39,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:39,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:39,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:00:39,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-28 15:00:39,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:00:39,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-28 15:00:39,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:00:39,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:00:39,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:00:39,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 15:00:39,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 15:00:39,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:00:39,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:00:39,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:39,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:39,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:00:39,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:00:39,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:00:39,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 15:00:39,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:00:39,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:00:39,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:00:39,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:00:39,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:00:39,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 15:00:39,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:00:39,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [913863303] [2020-10-28 15:00:39,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:00:39,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 15:00:39,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701999666] [2020-10-28 15:00:39,324 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 15:00:39,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:00:39,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 15:00:39,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-28 15:00:39,325 INFO L87 Difference]: Start difference. First operand 283 states and 356 transitions. Second operand 6 states. [2020-10-28 15:00:40,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:00:40,627 INFO L93 Difference]: Finished difference Result 298 states and 376 transitions. [2020-10-28 15:00:40,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 15:00:40,627 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-28 15:00:40,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:00:40,631 INFO L225 Difference]: With dead ends: 298 [2020-10-28 15:00:40,631 INFO L226 Difference]: Without dead ends: 295 [2020-10-28 15:00:40,631 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-28 15:00:40,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-10-28 15:00:40,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 282. [2020-10-28 15:00:40,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-10-28 15:00:40,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 354 transitions. [2020-10-28 15:00:40,643 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 354 transitions. Word has length 18 [2020-10-28 15:00:40,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:00:40,643 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 354 transitions. [2020-10-28 15:00:40,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 15:00:40,644 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 354 transitions. [2020-10-28 15:00:40,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-28 15:00:40,644 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:00:40,645 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:00:40,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 15:00:40,645 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:00:40,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:00:40,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1603972548, now seen corresponding path program 1 times [2020-10-28 15:00:40,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:00:40,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1868590254] [2020-10-28 15:00:40,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:00:40,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:40,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:40,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:40,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:00:40,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-28 15:00:40,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:00:40,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-28 15:00:40,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:00:40,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:00:40,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:00:40,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 15:00:40,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 15:00:40,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:00:40,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:00:40,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:40,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:40,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:00:40,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:00:40,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:00:40,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 15:00:40,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:00:40,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:00:40,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:00:40,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:00:40,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:00:40,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 15:00:40,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:00:40,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1868590254] [2020-10-28 15:00:40,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:00:40,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 15:00:40,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878849434] [2020-10-28 15:00:40,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 15:00:40,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:00:40,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 15:00:40,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-28 15:00:40,861 INFO L87 Difference]: Start difference. First operand 282 states and 354 transitions. Second operand 6 states. [2020-10-28 15:00:42,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:00:42,153 INFO L93 Difference]: Finished difference Result 284 states and 355 transitions. [2020-10-28 15:00:42,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 15:00:42,154 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-28 15:00:42,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:00:42,156 INFO L225 Difference]: With dead ends: 284 [2020-10-28 15:00:42,156 INFO L226 Difference]: Without dead ends: 281 [2020-10-28 15:00:42,157 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-28 15:00:42,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-10-28 15:00:42,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2020-10-28 15:00:42,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-28 15:00:42,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 352 transitions. [2020-10-28 15:00:42,168 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 352 transitions. Word has length 18 [2020-10-28 15:00:42,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:00:42,169 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 352 transitions. [2020-10-28 15:00:42,169 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 15:00:42,169 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 352 transitions. [2020-10-28 15:00:42,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-28 15:00:42,177 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:00:42,177 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:00:42,177 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 15:00:42,177 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:00:42,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:00:42,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1344314020, now seen corresponding path program 1 times [2020-10-28 15:00:42,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:00:42,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [796583443] [2020-10-28 15:00:42,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:00:42,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:42,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:42,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:42,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:00:42,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-28 15:00:42,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:00:42,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-10-28 15:00:42,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:00:42,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:00:42,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:00:42,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 15:00:42,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 15:00:42,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:00:42,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:00:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:42,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:42,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:00:42,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:00:42,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:00:42,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 15:00:42,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:00:42,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:00:42,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:00:42,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:00:42,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:00:42,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:00:42,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:00:42,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [796583443] [2020-10-28 15:00:42,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:00:42,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 15:00:42,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992004563] [2020-10-28 15:00:42,529 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 15:00:42,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:00:42,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 15:00:42,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-28 15:00:42,535 INFO L87 Difference]: Start difference. First operand 281 states and 352 transitions. Second operand 6 states. [2020-10-28 15:00:43,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:00:43,868 INFO L93 Difference]: Finished difference Result 283 states and 353 transitions. [2020-10-28 15:00:43,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 15:00:43,868 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-28 15:00:43,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:00:43,871 INFO L225 Difference]: With dead ends: 283 [2020-10-28 15:00:43,872 INFO L226 Difference]: Without dead ends: 280 [2020-10-28 15:00:43,872 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-28 15:00:43,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-10-28 15:00:43,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 277. [2020-10-28 15:00:43,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-10-28 15:00:43,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 347 transitions. [2020-10-28 15:00:43,882 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 347 transitions. Word has length 18 [2020-10-28 15:00:43,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:00:43,883 INFO L481 AbstractCegarLoop]: Abstraction has 277 states and 347 transitions. [2020-10-28 15:00:43,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 15:00:43,883 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 347 transitions. [2020-10-28 15:00:43,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-28 15:00:43,884 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:00:43,884 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:00:43,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 15:00:43,884 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:00:43,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:00:43,885 INFO L82 PathProgramCache]: Analyzing trace with hash 378659902, now seen corresponding path program 1 times [2020-10-28 15:00:43,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:00:43,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1792653784] [2020-10-28 15:00:43,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:00:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:43,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:43,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:44,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:00:44,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 15:00:44,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:00:44,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-28 15:00:44,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:00:44,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:00:44,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:00:44,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 15:00:44,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 15:00:44,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:00:44,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:00:44,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:44,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:44,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:00:44,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:00:44,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:00:44,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 15:00:44,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:00:44,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:00:44,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:00:44,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:00:44,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:00:44,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:00:44,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:00:44,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1792653784] [2020-10-28 15:00:44,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:00:44,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 15:00:44,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813453224] [2020-10-28 15:00:44,203 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 15:00:44,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:00:44,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 15:00:44,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-28 15:00:44,204 INFO L87 Difference]: Start difference. First operand 277 states and 347 transitions. Second operand 6 states. [2020-10-28 15:00:45,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:00:45,536 INFO L93 Difference]: Finished difference Result 298 states and 373 transitions. [2020-10-28 15:00:45,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 15:00:45,541 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-10-28 15:00:45,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:00:45,543 INFO L225 Difference]: With dead ends: 298 [2020-10-28 15:00:45,543 INFO L226 Difference]: Without dead ends: 295 [2020-10-28 15:00:45,544 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-28 15:00:45,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-10-28 15:00:45,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 276. [2020-10-28 15:00:45,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-28 15:00:45,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 345 transitions. [2020-10-28 15:00:45,555 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 345 transitions. Word has length 19 [2020-10-28 15:00:45,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:00:45,555 INFO L481 AbstractCegarLoop]: Abstraction has 276 states and 345 transitions. [2020-10-28 15:00:45,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 15:00:45,555 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 345 transitions. [2020-10-28 15:00:45,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-28 15:00:45,556 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:00:45,556 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:00:45,556 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 15:00:45,557 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:00:45,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:00:45,557 INFO L82 PathProgramCache]: Analyzing trace with hash 336332471, now seen corresponding path program 1 times [2020-10-28 15:00:45,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:00:45,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1535254009] [2020-10-28 15:00:45,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:00:45,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:45,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:45,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:45,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:00:45,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 15:00:45,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:00:45,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-28 15:00:45,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:00:45,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:00:45,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:00:45,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 15:00:45,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 15:00:45,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:00:45,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:00:45,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:45,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:45,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:00:45,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:00:45,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:00:45,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 15:00:45,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:00:45,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:00:45,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:00:45,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:00:45,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:00:45,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:00:45,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:00:45,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1535254009] [2020-10-28 15:00:45,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:00:45,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 15:00:45,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111179643] [2020-10-28 15:00:45,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 15:00:45,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:00:45,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 15:00:45,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-28 15:00:45,893 INFO L87 Difference]: Start difference. First operand 276 states and 345 transitions. Second operand 6 states. [2020-10-28 15:00:47,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:00:47,229 INFO L93 Difference]: Finished difference Result 290 states and 362 transitions. [2020-10-28 15:00:47,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 15:00:47,232 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-10-28 15:00:47,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:00:47,234 INFO L225 Difference]: With dead ends: 290 [2020-10-28 15:00:47,234 INFO L226 Difference]: Without dead ends: 287 [2020-10-28 15:00:47,235 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-28 15:00:47,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-28 15:00:47,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 275. [2020-10-28 15:00:47,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2020-10-28 15:00:47,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 343 transitions. [2020-10-28 15:00:47,245 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 343 transitions. Word has length 19 [2020-10-28 15:00:47,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:00:47,245 INFO L481 AbstractCegarLoop]: Abstraction has 275 states and 343 transitions. [2020-10-28 15:00:47,245 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 15:00:47,245 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 343 transitions. [2020-10-28 15:00:47,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-28 15:00:47,246 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:00:47,246 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:00:47,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 15:00:47,246 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:00:47,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:00:47,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1815504043, now seen corresponding path program 1 times [2020-10-28 15:00:47,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:00:47,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1775933090] [2020-10-28 15:00:47,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:00:47,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:47,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:47,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:47,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:00:47,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 15:00:47,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:00:47,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-10-28 15:00:47,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:00:47,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:00:47,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:00:47,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 15:00:47,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 15:00:47,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:00:47,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:00:47,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:47,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:47,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:00:47,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:00:47,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:00:47,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 15:00:47,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:00:47,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:00:47,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:00:47,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:00:47,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:00:47,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:00:47,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:00:47,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1775933090] [2020-10-28 15:00:47,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:00:47,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 15:00:47,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378272239] [2020-10-28 15:00:47,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 15:00:47,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:00:47,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 15:00:47,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-28 15:00:47,564 INFO L87 Difference]: Start difference. First operand 275 states and 343 transitions. Second operand 6 states. [2020-10-28 15:00:48,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:00:48,870 INFO L93 Difference]: Finished difference Result 277 states and 344 transitions. [2020-10-28 15:00:48,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 15:00:48,870 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-10-28 15:00:48,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:00:48,872 INFO L225 Difference]: With dead ends: 277 [2020-10-28 15:00:48,872 INFO L226 Difference]: Without dead ends: 272 [2020-10-28 15:00:48,873 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-28 15:00:48,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2020-10-28 15:00:48,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2020-10-28 15:00:48,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-10-28 15:00:48,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 339 transitions. [2020-10-28 15:00:48,882 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 339 transitions. Word has length 19 [2020-10-28 15:00:48,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:00:48,882 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 339 transitions. [2020-10-28 15:00:48,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 15:00:48,882 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 339 transitions. [2020-10-28 15:00:48,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-28 15:00:48,883 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:00:48,883 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] [2020-10-28 15:00:48,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 15:00:48,883 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:00:48,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:00:48,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1147413986, now seen corresponding path program 1 times [2020-10-28 15:00:48,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:00:48,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1418132932] [2020-10-28 15:00:48,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:00:48,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:48,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:48,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:49,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:00:49,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-28 15:00:49,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:00:49,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-10-28 15:00:49,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:00:49,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:00:49,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:00:49,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 15:00:49,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 15:00:49,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:00:49,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:00:49,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:49,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:49,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:00:49,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:00:49,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:00:49,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 15:00:49,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:00:49,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:00:49,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:00:49,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:00:49,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:00:49,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:00:49,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:00:49,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1418132932] [2020-10-28 15:00:49,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:00:49,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 15:00:49,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035213098] [2020-10-28 15:00:49,219 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 15:00:49,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:00:49,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 15:00:49,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 15:00:49,220 INFO L87 Difference]: Start difference. First operand 272 states and 339 transitions. Second operand 7 states. [2020-10-28 15:00:50,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:00:50,778 INFO L93 Difference]: Finished difference Result 303 states and 376 transitions. [2020-10-28 15:00:50,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 15:00:50,779 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-10-28 15:00:50,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:00:50,782 INFO L225 Difference]: With dead ends: 303 [2020-10-28 15:00:50,782 INFO L226 Difference]: Without dead ends: 300 [2020-10-28 15:00:50,783 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-28 15:00:50,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-10-28 15:00:50,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 282. [2020-10-28 15:00:50,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-10-28 15:00:50,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 351 transitions. [2020-10-28 15:00:50,793 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 351 transitions. Word has length 20 [2020-10-28 15:00:50,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:00:50,794 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 351 transitions. [2020-10-28 15:00:50,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 15:00:50,794 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 351 transitions. [2020-10-28 15:00:50,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-28 15:00:50,794 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:00:50,794 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] [2020-10-28 15:00:50,795 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 15:00:50,795 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:00:50,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:00:50,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1061268859, now seen corresponding path program 1 times [2020-10-28 15:00:50,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:00:50,796 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1724610221] [2020-10-28 15:00:50,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:00:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:50,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:50,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:50,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:50,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:51,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:00:51,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-28 15:00:51,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 15:00:51,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 856 [2020-10-28 15:00:51,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:00:51,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:00:51,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 15:00:51,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 15:00:51,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 15:00:51,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:00:51,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:00:51,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:51,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:51,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:00:51,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:00:51,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:00:51,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:00:51,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:00:51,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:00:51,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:00:51,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:00:51,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:00:51,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:00:51,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:00:51,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1724610221] [2020-10-28 15:00:51,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:00:51,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 15:00:51,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127639123] [2020-10-28 15:00:51,755 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 15:00:51,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:00:51,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 15:00:51,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 15:00:51,756 INFO L87 Difference]: Start difference. First operand 282 states and 351 transitions. Second operand 5 states. [2020-10-28 15:00:52,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:00:52,740 INFO L93 Difference]: Finished difference Result 284 states and 352 transitions. [2020-10-28 15:00:52,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 15:00:52,741 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-28 15:00:52,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:00:52,745 INFO L225 Difference]: With dead ends: 284 [2020-10-28 15:00:52,745 INFO L226 Difference]: Without dead ends: 281 [2020-10-28 15:00:52,746 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 15:00:52,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-10-28 15:00:52,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2020-10-28 15:00:52,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-28 15:00:52,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 349 transitions. [2020-10-28 15:00:52,760 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 349 transitions. Word has length 21 [2020-10-28 15:00:52,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:00:52,760 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 349 transitions. [2020-10-28 15:00:52,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 15:00:52,761 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 349 transitions. [2020-10-28 15:00:52,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-28 15:00:52,765 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:00:52,766 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] [2020-10-28 15:00:52,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 15:00:52,766 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:00:52,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:00:52,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1461384455, now seen corresponding path program 1 times [2020-10-28 15:00:52,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:00:52,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [87913885] [2020-10-28 15:00:52,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:00:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:52,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:52,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:52,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:52,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:53,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:00:53,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 15:00:53,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 15:00:53,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 623 [2020-10-28 15:00:53,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:00:53,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:00:53,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 15:00:53,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-28 15:00:53,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 15:00:53,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:00:53,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:00:53,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:53,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:53,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:00:53,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:00:53,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:00:53,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 15:00:53,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:00:53,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:00:53,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:00:53,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:00:53,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:00:53,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:00:53,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:00:53,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [87913885] [2020-10-28 15:00:53,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:00:53,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 15:00:53,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527304617] [2020-10-28 15:00:53,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 15:00:53,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:00:53,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 15:00:53,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 15:00:53,517 INFO L87 Difference]: Start difference. First operand 281 states and 349 transitions. Second operand 5 states. [2020-10-28 15:00:54,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:00:54,564 INFO L93 Difference]: Finished difference Result 283 states and 350 transitions. [2020-10-28 15:00:54,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 15:00:54,565 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-10-28 15:00:54,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:00:54,567 INFO L225 Difference]: With dead ends: 283 [2020-10-28 15:00:54,567 INFO L226 Difference]: Without dead ends: 278 [2020-10-28 15:00:54,568 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 15:00:54,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-10-28 15:00:54,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-10-28 15:00:54,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-10-28 15:00:54,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 345 transitions. [2020-10-28 15:00:54,581 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 345 transitions. Word has length 22 [2020-10-28 15:00:54,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:00:54,581 INFO L481 AbstractCegarLoop]: Abstraction has 278 states and 345 transitions. [2020-10-28 15:00:54,582 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 15:00:54,582 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 345 transitions. [2020-10-28 15:00:54,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-28 15:00:54,582 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:00:54,583 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] [2020-10-28 15:00:54,583 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 15:00:54,583 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:00:54,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:00:54,584 INFO L82 PathProgramCache]: Analyzing trace with hash -1943871049, now seen corresponding path program 1 times [2020-10-28 15:00:54,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:00:54,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1536475906] [2020-10-28 15:00:54,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:00:54,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:54,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:54,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:54,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:54,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:00:54,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 15:00:54,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 15:00:54,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-10-28 15:00:54,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:00:54,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:00:54,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 15:00:54,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 15:00:54,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 15:00:54,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:00:55,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:00:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:55,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:55,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:00:55,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:00:55,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:00:55,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 15:00:55,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:00:55,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:00:55,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:00:55,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:00:55,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:00:55,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:00:55,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:00:55,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1536475906] [2020-10-28 15:00:55,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:00:55,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 15:00:55,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228210536] [2020-10-28 15:00:55,153 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 15:00:55,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:00:55,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 15:00:55,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-28 15:00:55,155 INFO L87 Difference]: Start difference. First operand 278 states and 345 transitions. Second operand 9 states. [2020-10-28 15:00:56,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:00:56,971 INFO L93 Difference]: Finished difference Result 289 states and 357 transitions. [2020-10-28 15:00:56,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 15:00:56,972 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-28 15:00:56,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:00:56,974 INFO L225 Difference]: With dead ends: 289 [2020-10-28 15:00:56,974 INFO L226 Difference]: Without dead ends: 254 [2020-10-28 15:00:56,975 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-10-28 15:00:56,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-10-28 15:00:56,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2020-10-28 15:00:56,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-10-28 15:00:56,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 255 transitions. [2020-10-28 15:00:56,982 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 255 transitions. Word has length 23 [2020-10-28 15:00:56,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:00:56,983 INFO L481 AbstractCegarLoop]: Abstraction has 254 states and 255 transitions. [2020-10-28 15:00:56,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 15:00:56,983 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 255 transitions. [2020-10-28 15:00:56,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-10-28 15:00:56,986 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:00:56,987 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:00:56,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 15:00:56,987 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:00:56,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:00:56,988 INFO L82 PathProgramCache]: Analyzing trace with hash 76858281, now seen corresponding path program 1 times [2020-10-28 15:00:56,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:00:56,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [510970670] [2020-10-28 15:00:56,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:00:57,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:00:57,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:00:58,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:01:00,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:01:01,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:01:02,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:01:02,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-10-28 15:01:02,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 15:01:02,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5073 [2020-10-28 15:01:02,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:01:02,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:01:02,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-28 15:01:02,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-10-28 15:01:02,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-28 15:01:02,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 15:01:02,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:01:02,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:01:02,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:01:02,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:01:02,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:01:02,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:01:02,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 15:01:02,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:01:02,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:01:02,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:01:02,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:01:02,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:01:02,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:01:03,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:01:03,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [510970670] [2020-10-28 15:01:03,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:01:03,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2020-10-28 15:01:03,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714603913] [2020-10-28 15:01:03,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-28 15:01:03,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:01:03,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-28 15:01:03,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=398, Unknown=0, NotChecked=0, Total=702 [2020-10-28 15:01:03,023 INFO L87 Difference]: Start difference. First operand 254 states and 255 transitions. Second operand 27 states. [2020-10-28 15:01:05,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:01:05,885 INFO L93 Difference]: Finished difference Result 257 states and 257 transitions. [2020-10-28 15:01:05,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-28 15:01:05,885 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 249 [2020-10-28 15:01:05,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:01:05,888 INFO L225 Difference]: With dead ends: 257 [2020-10-28 15:01:05,888 INFO L226 Difference]: Without dead ends: 254 [2020-10-28 15:01:05,892 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=902, Invalid=1548, Unknown=0, NotChecked=0, Total=2450 [2020-10-28 15:01:05,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-10-28 15:01:05,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 253. [2020-10-28 15:01:05,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-10-28 15:01:05,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 253 transitions. [2020-10-28 15:01:05,900 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 253 transitions. Word has length 249 [2020-10-28 15:01:05,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:01:05,902 INFO L481 AbstractCegarLoop]: Abstraction has 253 states and 253 transitions. [2020-10-28 15:01:05,902 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-28 15:01:05,902 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 253 transitions. [2020-10-28 15:01:05,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-10-28 15:01:05,905 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:01:05,906 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:01:05,906 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-28 15:01:05,906 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:01:05,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:01:05,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1912280946, now seen corresponding path program 1 times [2020-10-28 15:01:05,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:01:05,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [463651556] [2020-10-28 15:01:05,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:01:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:01:06,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:01:13,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:01:13,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-10-28 15:01:13,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:01:13,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7006 [2020-10-28 15:01:13,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:01:13,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:01:13,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 119 [2020-10-28 15:01:13,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-28 15:01:13,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 237 [2020-10-28 15:01:13,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:01:14,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:01:14,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:01:14,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:01:14,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:01:14,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:01:14,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:01:14,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 15:01:14,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:01:14,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:01:14,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:01:14,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:01:14,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:01:14,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:01:14,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:01:14,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [463651556] [2020-10-28 15:01:14,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:01:14,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 15:01:14,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930475143] [2020-10-28 15:01:14,654 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 15:01:14,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:01:14,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 15:01:14,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-28 15:01:14,655 INFO L87 Difference]: Start difference. First operand 253 states and 253 transitions. Second operand 8 states. [2020-10-28 15:01:15,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:01:15,849 INFO L93 Difference]: Finished difference Result 255 states and 255 transitions. [2020-10-28 15:01:15,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 15:01:15,849 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 250 [2020-10-28 15:01:15,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:01:15,850 INFO L225 Difference]: With dead ends: 255 [2020-10-28 15:01:15,850 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 15:01:15,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 7 SyntacticMatches, 111 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 15:01:15,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 15:01:15,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 15:01:15,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 15:01:15,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 15:01:15,852 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 250 [2020-10-28 15:01:15,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:01:15,853 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 15:01:15,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 15:01:15,853 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 15:01:15,853 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 15:01:15,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-28 15:01:15,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 15:01:16,413 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-28 15:01:16,414 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-28 15:01:16,414 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-28 15:01:16,414 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-28 15:01:16,414 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 15:01:16,414 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)|) (= ~__tmp_3904_0~0 |old(~__tmp_3904_0~0)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= ~__return_2598~0 |old(~__return_2598~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~__tmp_3904_1~0 |old(~__tmp_3904_1~0)|) (= ~__tmp_2609_0~0 |old(~__tmp_2609_0~0)|) (= |#t~string4.base| |old(#t~string4.base)|) (= ~__return_main~0 |old(~__return_main~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-10-28 15:01:16,414 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 15:01:16,414 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 15:01:16,414 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-28 15:01:16,415 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 15:01:16,415 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 15:01:16,415 INFO L274 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 6 8) no Hoare annotation was computed. [2020-10-28 15:01:16,415 INFO L274 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-10-28 15:01:16,415 INFO L274 CegarLoopResult]: For program point L7-2(lines 6 8) no Hoare annotation was computed. [2020-10-28 15:01:16,415 INFO L274 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 6 8) no Hoare annotation was computed. [2020-10-28 15:01:16,415 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 16 3008) no Hoare annotation was computed. [2020-10-28 15:01:16,415 INFO L274 CegarLoopResult]: For program point L1555(lines 1555 2805) no Hoare annotation was computed. [2020-10-28 15:01:16,415 INFO L274 CegarLoopResult]: For program point L2546(lines 2546 2653) no Hoare annotation was computed. [2020-10-28 15:01:16,415 INFO L274 CegarLoopResult]: For program point L2480(lines 2480 2663) no Hoare annotation was computed. [2020-10-28 15:01:16,415 INFO L274 CegarLoopResult]: For program point L432(lines 432 2978) no Hoare annotation was computed. [2020-10-28 15:01:16,416 INFO L274 CegarLoopResult]: For program point L697(lines 697 2937) no Hoare annotation was computed. [2020-10-28 15:01:16,416 INFO L274 CegarLoopResult]: For program point L1688(lines 1688 2785) no Hoare annotation was computed. [2020-10-28 15:01:16,416 INFO L274 CegarLoopResult]: For program point L1622(lines 1622 2795) no Hoare annotation was computed. [2020-10-28 15:01:16,416 INFO L274 CegarLoopResult]: For program point L103(lines 103 125) no Hoare annotation was computed. [2020-10-28 15:01:16,416 INFO L274 CegarLoopResult]: For program point L1953(lines 1953 2744) no Hoare annotation was computed. [2020-10-28 15:01:16,416 INFO L274 CegarLoopResult]: For program point L830(lines 830 2917) no Hoare annotation was computed. [2020-10-28 15:01:16,416 INFO L274 CegarLoopResult]: For program point L764(lines 764 2927) no Hoare annotation was computed. [2020-10-28 15:01:16,416 INFO L274 CegarLoopResult]: For program point L2614(lines 2614 2643) no Hoare annotation was computed. [2020-10-28 15:01:16,416 INFO L274 CegarLoopResult]: For program point L2218(lines 2218 2703) no Hoare annotation was computed. [2020-10-28 15:01:16,416 INFO L274 CegarLoopResult]: For program point L1095(lines 1095 2876) no Hoare annotation was computed. [2020-10-28 15:01:16,416 INFO L274 CegarLoopResult]: For program point L1360(lines 1360 2835) no Hoare annotation was computed. [2020-10-28 15:01:16,416 INFO L274 CegarLoopResult]: For program point L2351(lines 2351 2683) no Hoare annotation was computed. [2020-10-28 15:01:16,417 INFO L274 CegarLoopResult]: For program point L2285(lines 2285 2693) no Hoare annotation was computed. [2020-10-28 15:01:16,417 INFO L274 CegarLoopResult]: For program point L171(lines 171 193) no Hoare annotation was computed. [2020-10-28 15:01:16,417 INFO L270 CegarLoopResult]: At program point L105(line 105) the Hoare annotation is: false [2020-10-28 15:01:16,417 INFO L274 CegarLoopResult]: For program point L105-1(line 105) no Hoare annotation was computed. [2020-10-28 15:01:16,417 INFO L270 CegarLoopResult]: At program point L2616(line 2616) the Hoare annotation is: false [2020-10-28 15:01:16,417 INFO L274 CegarLoopResult]: For program point L502(lines 502 2967) no Hoare annotation was computed. [2020-10-28 15:01:16,417 INFO L274 CegarLoopResult]: For program point L2616-1(line 2616) no Hoare annotation was computed. [2020-10-28 15:01:16,417 INFO L274 CegarLoopResult]: For program point L1493(lines 1493 2815) no Hoare annotation was computed. [2020-10-28 15:01:16,417 INFO L274 CegarLoopResult]: For program point L1427(lines 1427 2825) no Hoare annotation was computed. [2020-10-28 15:01:16,417 INFO L274 CegarLoopResult]: For program point L1758(lines 1758 2774) no Hoare annotation was computed. [2020-10-28 15:01:16,417 INFO L274 CegarLoopResult]: For program point L635(lines 635 2947) no Hoare annotation was computed. [2020-10-28 15:01:16,417 INFO L274 CegarLoopResult]: For program point L569(lines 569 2957) no Hoare annotation was computed. [2020-10-28 15:01:16,418 INFO L270 CegarLoopResult]: At program point L173(line 173) the Hoare annotation is: false [2020-10-28 15:01:16,418 INFO L274 CegarLoopResult]: For program point L173-1(line 173) no Hoare annotation was computed. [2020-10-28 15:01:16,418 INFO L274 CegarLoopResult]: For program point L2023(lines 2023 2733) no Hoare annotation was computed. [2020-10-28 15:01:16,418 INFO L274 CegarLoopResult]: For program point L900(lines 900 2906) no Hoare annotation was computed. [2020-10-28 15:01:16,418 INFO L274 CegarLoopResult]: For program point L1165(lines 1165 2865) no Hoare annotation was computed. [2020-10-28 15:01:16,418 INFO L274 CegarLoopResult]: For program point L2156(lines 2156 2713) no Hoare annotation was computed. [2020-10-28 15:01:16,418 INFO L274 CegarLoopResult]: For program point L2090(lines 2090 2723) no Hoare annotation was computed. [2020-10-28 15:01:16,418 INFO L274 CegarLoopResult]: For program point L2421(lines 2421 2672) no Hoare annotation was computed. [2020-10-28 15:01:16,418 INFO L274 CegarLoopResult]: For program point L307(lines 307 2997) no Hoare annotation was computed. [2020-10-28 15:01:16,418 INFO L274 CegarLoopResult]: For program point L1298(lines 1298 2845) no Hoare annotation was computed. [2020-10-28 15:01:16,418 INFO L274 CegarLoopResult]: For program point L1232(lines 1232 2855) no Hoare annotation was computed. [2020-10-28 15:01:16,418 INFO L274 CegarLoopResult]: For program point L1563(lines 1563 2804) no Hoare annotation was computed. [2020-10-28 15:01:16,419 INFO L274 CegarLoopResult]: For program point L440(lines 440 2977) no Hoare annotation was computed. [2020-10-28 15:01:16,419 INFO L274 CegarLoopResult]: For program point L374(lines 374 2987) no Hoare annotation was computed. [2020-10-28 15:01:16,419 INFO L274 CegarLoopResult]: For program point L1828(lines 1828 2763) no Hoare annotation was computed. [2020-10-28 15:01:16,419 INFO L274 CegarLoopResult]: For program point L705(lines 705 2936) no Hoare annotation was computed. [2020-10-28 15:01:16,419 INFO L274 CegarLoopResult]: For program point L45(lines 45 55) no Hoare annotation was computed. [2020-10-28 15:01:16,419 INFO L274 CegarLoopResult]: For program point L970(lines 970 2895) no Hoare annotation was computed. [2020-10-28 15:01:16,419 INFO L274 CegarLoopResult]: For program point L1961(lines 1961 2743) no Hoare annotation was computed. [2020-10-28 15:01:16,419 INFO L274 CegarLoopResult]: For program point L1895(lines 1895 2753) no Hoare annotation was computed. [2020-10-28 15:01:16,419 INFO L274 CegarLoopResult]: For program point L2226(lines 2226 2702) no Hoare annotation was computed. [2020-10-28 15:01:16,419 INFO L274 CegarLoopResult]: For program point L1103(lines 1103 2875) no Hoare annotation was computed. [2020-10-28 15:01:16,419 INFO L274 CegarLoopResult]: For program point L1037(lines 1037 2885) no Hoare annotation was computed. [2020-10-28 15:01:16,419 INFO L274 CegarLoopResult]: For program point L2623(lines 2623 2642) no Hoare annotation was computed. [2020-10-28 15:01:16,420 INFO L274 CegarLoopResult]: For program point L2491(lines 2491 2661) no Hoare annotation was computed. [2020-10-28 15:01:16,420 INFO L274 CegarLoopResult]: For program point L1368(lines 1368 2834) no Hoare annotation was computed. [2020-10-28 15:01:16,420 INFO L270 CegarLoopResult]: At program point L47(line 47) the Hoare annotation is: false [2020-10-28 15:01:16,420 INFO L274 CegarLoopResult]: For program point L47-1(line 47) no Hoare annotation was computed. [2020-10-28 15:01:16,420 INFO L274 CegarLoopResult]: For program point L1633(lines 1633 2793) no Hoare annotation was computed. [2020-10-28 15:01:16,420 INFO L274 CegarLoopResult]: For program point L2558(lines 2558 2651) no Hoare annotation was computed. [2020-10-28 15:01:16,420 INFO L274 CegarLoopResult]: For program point L510(lines 510 2966) no Hoare annotation was computed. [2020-10-28 15:01:16,420 INFO L274 CegarLoopResult]: For program point L246(lines 246 281) no Hoare annotation was computed. [2020-10-28 15:01:16,420 INFO L274 CegarLoopResult]: For program point L775(lines 775 2925) no Hoare annotation was computed. [2020-10-28 15:01:16,420 INFO L274 CegarLoopResult]: For program point L1766(lines 1766 2773) no Hoare annotation was computed. [2020-10-28 15:01:16,420 INFO L274 CegarLoopResult]: For program point L1700(lines 1700 2783) no Hoare annotation was computed. [2020-10-28 15:01:16,421 INFO L270 CegarLoopResult]: At program point L2625(lines 25 3002) the Hoare annotation is: (and (<= main_~main__t~0 main_~main__tagbuf_len~0) (<= 0 main_~main__t~0)) [2020-10-28 15:01:16,421 INFO L274 CegarLoopResult]: For program point L115(lines 115 123) no Hoare annotation was computed. [2020-10-28 15:01:16,421 INFO L274 CegarLoopResult]: For program point L2031(lines 2031 2732) no Hoare annotation was computed. [2020-10-28 15:01:16,421 INFO L274 CegarLoopResult]: For program point L908(lines 908 2905) no Hoare annotation was computed. [2020-10-28 15:01:16,421 INFO L274 CegarLoopResult]: For program point L842(lines 842 2915) no Hoare annotation was computed. [2020-10-28 15:01:16,421 INFO L274 CegarLoopResult]: For program point L2296(lines 2296 2691) no Hoare annotation was computed. [2020-10-28 15:01:16,421 INFO L274 CegarLoopResult]: For program point L1173(lines 1173 2864) no Hoare annotation was computed. [2020-10-28 15:01:16,421 INFO L274 CegarLoopResult]: For program point L1438(lines 1438 2823) no Hoare annotation was computed. [2020-10-28 15:01:16,421 INFO L274 CegarLoopResult]: For program point L2429(lines 2429 2671) no Hoare annotation was computed. [2020-10-28 15:01:16,421 INFO L274 CegarLoopResult]: For program point L315(lines 315 2996) no Hoare annotation was computed. [2020-10-28 15:01:16,421 INFO L274 CegarLoopResult]: For program point L2363(lines 2363 2681) no Hoare annotation was computed. [2020-10-28 15:01:16,421 INFO L274 CegarLoopResult]: For program point L183(lines 183 191) no Hoare annotation was computed. [2020-10-28 15:01:16,422 INFO L270 CegarLoopResult]: At program point L117(line 117) the Hoare annotation is: false [2020-10-28 15:01:16,422 INFO L274 CegarLoopResult]: For program point L117-1(line 117) no Hoare annotation was computed. [2020-10-28 15:01:16,422 INFO L274 CegarLoopResult]: For program point L580(lines 580 2955) no Hoare annotation was computed. [2020-10-28 15:01:16,422 INFO L274 CegarLoopResult]: For program point L1571(lines 1571 2803) no Hoare annotation was computed. [2020-10-28 15:01:16,422 INFO L274 CegarLoopResult]: For program point L1505(lines 1505 2813) no Hoare annotation was computed. [2020-10-28 15:01:16,422 INFO L274 CegarLoopResult]: For program point L1836(lines 1836 2762) no Hoare annotation was computed. [2020-10-28 15:01:16,422 INFO L274 CegarLoopResult]: For program point L713(lines 713 2935) no Hoare annotation was computed. [2020-10-28 15:01:16,422 INFO L274 CegarLoopResult]: For program point L647(lines 647 2945) no Hoare annotation was computed. [2020-10-28 15:01:16,422 INFO L270 CegarLoopResult]: At program point L185(line 185) the Hoare annotation is: false [2020-10-28 15:01:16,422 INFO L274 CegarLoopResult]: For program point L185-1(line 185) no Hoare annotation was computed. [2020-10-28 15:01:16,422 INFO L274 CegarLoopResult]: For program point L2101(lines 2101 2721) no Hoare annotation was computed. [2020-10-28 15:01:16,422 INFO L274 CegarLoopResult]: For program point L978(lines 978 2894) no Hoare annotation was computed. [2020-10-28 15:01:16,423 INFO L274 CegarLoopResult]: For program point L1243(lines 1243 2853) no Hoare annotation was computed. [2020-10-28 15:01:16,423 INFO L274 CegarLoopResult]: For program point L2234(lines 2234 2701) no Hoare annotation was computed. [2020-10-28 15:01:16,423 INFO L274 CegarLoopResult]: For program point L2168(lines 2168 2711) no Hoare annotation was computed. [2020-10-28 15:01:16,423 INFO L274 CegarLoopResult]: For program point L2631(lines 2631 2641) no Hoare annotation was computed. [2020-10-28 15:01:16,423 INFO L274 CegarLoopResult]: For program point L2499(lines 2499 2660) no Hoare annotation was computed. [2020-10-28 15:01:16,423 INFO L274 CegarLoopResult]: For program point L385(lines 385 2985) no Hoare annotation was computed. [2020-10-28 15:01:16,423 INFO L274 CegarLoopResult]: For program point L1376(lines 1376 2833) no Hoare annotation was computed. [2020-10-28 15:01:16,423 INFO L274 CegarLoopResult]: For program point L1310(lines 1310 2843) no Hoare annotation was computed. [2020-10-28 15:01:16,423 INFO L274 CegarLoopResult]: For program point L253(lines 253 275) no Hoare annotation was computed. [2020-10-28 15:01:16,423 INFO L274 CegarLoopResult]: For program point L1641(lines 1641 2792) no Hoare annotation was computed. [2020-10-28 15:01:16,423 INFO L274 CegarLoopResult]: For program point L518(lines 518 2965) no Hoare annotation was computed. [2020-10-28 15:01:16,423 INFO L274 CegarLoopResult]: For program point L452(lines 452 2975) no Hoare annotation was computed. [2020-10-28 15:01:16,424 INFO L274 CegarLoopResult]: For program point L1906(lines 1906 2751) no Hoare annotation was computed. [2020-10-28 15:01:16,424 INFO L274 CegarLoopResult]: For program point L783(lines 783 2924) no Hoare annotation was computed. [2020-10-28 15:01:16,424 INFO L270 CegarLoopResult]: At program point L255(line 255) the Hoare annotation is: false [2020-10-28 15:01:16,424 INFO L274 CegarLoopResult]: For program point L255-1(line 255) no Hoare annotation was computed. [2020-10-28 15:01:16,424 INFO L274 CegarLoopResult]: For program point L1048(lines 1048 2883) no Hoare annotation was computed. [2020-10-28 15:01:16,424 INFO L274 CegarLoopResult]: For program point L2039(lines 2039 2731) no Hoare annotation was computed. [2020-10-28 15:01:16,424 INFO L274 CegarLoopResult]: For program point L1973(lines 1973 2741) no Hoare annotation was computed. [2020-10-28 15:01:16,424 INFO L270 CegarLoopResult]: At program point L2634(lines 64 3001) the Hoare annotation is: (and (<= (+ main_~main__t~0 1) main_~main__tagbuf_len~0) (<= 0 main_~main__t~0)) [2020-10-28 15:01:16,424 INFO L274 CegarLoopResult]: For program point L2304(lines 2304 2690) no Hoare annotation was computed. [2020-10-28 15:01:16,424 INFO L274 CegarLoopResult]: For program point L1181(lines 1181 2863) no Hoare annotation was computed. [2020-10-28 15:01:16,424 INFO L274 CegarLoopResult]: For program point L1115(lines 1115 2873) no Hoare annotation was computed. [2020-10-28 15:01:16,424 INFO L274 CegarLoopResult]: For program point L2569(lines 2569 2649) no Hoare annotation was computed. [2020-10-28 15:01:16,425 INFO L274 CegarLoopResult]: For program point L1446(lines 1446 2822) no Hoare annotation was computed. [2020-10-28 15:01:16,425 INFO L274 CegarLoopResult]: For program point L323(lines 323 2995) no Hoare annotation was computed. [2020-10-28 15:01:16,425 INFO L274 CegarLoopResult]: For program point L1711(lines 1711 2781) no Hoare annotation was computed. [2020-10-28 15:01:16,425 INFO L274 CegarLoopResult]: For program point L588(lines 588 2954) no Hoare annotation was computed. [2020-10-28 15:01:16,425 INFO L274 CegarLoopResult]: For program point L853(lines 853 2913) no Hoare annotation was computed. [2020-10-28 15:01:16,425 INFO L274 CegarLoopResult]: For program point L1844(lines 1844 2761) no Hoare annotation was computed. [2020-10-28 15:01:16,425 INFO L274 CegarLoopResult]: For program point L1778(lines 1778 2771) no Hoare annotation was computed. [2020-10-28 15:01:16,425 INFO L274 CegarLoopResult]: For program point L2109(lines 2109 2720) no Hoare annotation was computed. [2020-10-28 15:01:16,426 INFO L274 CegarLoopResult]: For program point L986(lines 986 2893) no Hoare annotation was computed. [2020-10-28 15:01:16,426 INFO L274 CegarLoopResult]: For program point L920(lines 920 2903) no Hoare annotation was computed. [2020-10-28 15:01:16,426 INFO L274 CegarLoopResult]: For program point L2374(lines 2374 2679) no Hoare annotation was computed. [2020-10-28 15:01:16,426 INFO L274 CegarLoopResult]: For program point L1251(lines 1251 2852) no Hoare annotation was computed. [2020-10-28 15:01:16,426 INFO L274 CegarLoopResult]: For program point L1516(lines 1516 2811) no Hoare annotation was computed. [2020-10-28 15:01:16,426 INFO L274 CegarLoopResult]: For program point L2507(lines 2507 2659) no Hoare annotation was computed. [2020-10-28 15:01:16,426 INFO L274 CegarLoopResult]: For program point L393(lines 393 2984) no Hoare annotation was computed. [2020-10-28 15:01:16,426 INFO L274 CegarLoopResult]: For program point L2441(lines 2441 2669) no Hoare annotation was computed. [2020-10-28 15:01:16,426 INFO L274 CegarLoopResult]: For program point L658(lines 658 2943) no Hoare annotation was computed. [2020-10-28 15:01:16,426 INFO L274 CegarLoopResult]: For program point L1649(lines 1649 2791) no Hoare annotation was computed. [2020-10-28 15:01:16,427 INFO L270 CegarLoopResult]: At program point L2640(lines 2591 2647) the Hoare annotation is: (and (<= 21 main_~main__t~0) (not (= main_~main__tagbuf_len~0 main_~main__t~0)) (< main_~main__t~0 (+ main_~main__tagbuf_len~0 1))) [2020-10-28 15:01:16,427 INFO L274 CegarLoopResult]: For program point L1583(lines 1583 2801) no Hoare annotation was computed. [2020-10-28 15:01:16,427 INFO L274 CegarLoopResult]: For program point L64(lines 64 3001) no Hoare annotation was computed. [2020-10-28 15:01:16,427 INFO L274 CegarLoopResult]: For program point L1914(lines 1914 2750) no Hoare annotation was computed. [2020-10-28 15:01:16,427 INFO L274 CegarLoopResult]: For program point L791(lines 791 2923) no Hoare annotation was computed. [2020-10-28 15:01:16,427 INFO L274 CegarLoopResult]: For program point L725(lines 725 2933) no Hoare annotation was computed. [2020-10-28 15:01:16,427 INFO L274 CegarLoopResult]: For program point L2179(lines 2179 2709) no Hoare annotation was computed. [2020-10-28 15:01:16,427 INFO L274 CegarLoopResult]: For program point L1056(lines 1056 2882) no Hoare annotation was computed. [2020-10-28 15:01:16,427 INFO L274 CegarLoopResult]: For program point L1321(lines 1321 2841) no Hoare annotation was computed. [2020-10-28 15:01:16,427 INFO L274 CegarLoopResult]: For program point L2312(lines 2312 2689) no Hoare annotation was computed. [2020-10-28 15:01:16,427 INFO L274 CegarLoopResult]: For program point L2246(lines 2246 2699) no Hoare annotation was computed. [2020-10-28 15:01:16,427 INFO L274 CegarLoopResult]: For program point L132(lines 132 282) no Hoare annotation was computed. [2020-10-28 15:01:16,428 INFO L274 CegarLoopResult]: For program point L2577(lines 2577 2648) no Hoare annotation was computed. [2020-10-28 15:01:16,428 INFO L274 CegarLoopResult]: For program point L463(lines 463 2973) no Hoare annotation was computed. [2020-10-28 15:01:16,428 INFO L274 CegarLoopResult]: For program point L1454(lines 1454 2821) no Hoare annotation was computed. [2020-10-28 15:01:16,428 INFO L274 CegarLoopResult]: For program point L1388(lines 1388 2831) no Hoare annotation was computed. [2020-10-28 15:01:16,428 INFO L274 CegarLoopResult]: For program point L265(lines 265 273) no Hoare annotation was computed. [2020-10-28 15:01:16,428 INFO L274 CegarLoopResult]: For program point L1719(lines 1719 2780) no Hoare annotation was computed. [2020-10-28 15:01:16,428 INFO L274 CegarLoopResult]: For program point L596(lines 596 2953) no Hoare annotation was computed. [2020-10-28 15:01:16,428 INFO L274 CegarLoopResult]: For program point L530(lines 530 2963) no Hoare annotation was computed. [2020-10-28 15:01:16,428 INFO L274 CegarLoopResult]: For program point L1984(lines 1984 2739) no Hoare annotation was computed. [2020-10-28 15:01:16,428 INFO L274 CegarLoopResult]: For program point L861(lines 861 2912) no Hoare annotation was computed. [2020-10-28 15:01:16,428 INFO L270 CegarLoopResult]: At program point L267(line 267) the Hoare annotation is: false [2020-10-28 15:01:16,429 INFO L274 CegarLoopResult]: For program point L267-1(line 267) no Hoare annotation was computed. [2020-10-28 15:01:16,429 INFO L274 CegarLoopResult]: For program point L1126(lines 1126 2871) no Hoare annotation was computed. [2020-10-28 15:01:16,429 INFO L274 CegarLoopResult]: For program point L2117(lines 2117 2719) no Hoare annotation was computed. [2020-10-28 15:01:16,429 INFO L274 CegarLoopResult]: For program point L2051(lines 2051 2729) no Hoare annotation was computed. [2020-10-28 15:01:16,429 INFO L274 CegarLoopResult]: For program point L2382(lines 2382 2678) no Hoare annotation was computed. [2020-10-28 15:01:16,429 INFO L274 CegarLoopResult]: For program point L1259(lines 1259 2851) no Hoare annotation was computed. [2020-10-28 15:01:16,429 INFO L274 CegarLoopResult]: For program point L1193(lines 1193 2861) no Hoare annotation was computed. [2020-10-28 15:01:16,429 INFO L274 CegarLoopResult]: For program point L136(lines 136 240) no Hoare annotation was computed. [2020-10-28 15:01:16,429 INFO L274 CegarLoopResult]: For program point L1524(lines 1524 2810) no Hoare annotation was computed. [2020-10-28 15:01:16,429 INFO L274 CegarLoopResult]: For program point L401(lines 401 2983) no Hoare annotation was computed. [2020-10-28 15:01:16,429 INFO L274 CegarLoopResult]: For program point L335(lines 335 2993) no Hoare annotation was computed. [2020-10-28 15:01:16,429 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 16 3008) no Hoare annotation was computed. [2020-10-28 15:01:16,429 INFO L274 CegarLoopResult]: For program point L1789(lines 1789 2769) no Hoare annotation was computed. [2020-10-28 15:01:16,430 INFO L274 CegarLoopResult]: For program point L666(lines 666 2942) no Hoare annotation was computed. [2020-10-28 15:01:16,430 INFO L274 CegarLoopResult]: For program point L931(lines 931 2901) no Hoare annotation was computed. [2020-10-28 15:01:16,430 INFO L274 CegarLoopResult]: For program point L1922(lines 1922 2749) no Hoare annotation was computed. [2020-10-28 15:01:16,430 INFO L274 CegarLoopResult]: For program point L1856(lines 1856 2759) no Hoare annotation was computed. [2020-10-28 15:01:16,430 INFO L274 CegarLoopResult]: For program point L205(lines 205 229) no Hoare annotation was computed. [2020-10-28 15:01:16,430 INFO L274 CegarLoopResult]: For program point L2187(lines 2187 2708) no Hoare annotation was computed. [2020-10-28 15:01:16,430 INFO L274 CegarLoopResult]: For program point L1064(lines 1064 2881) no Hoare annotation was computed. [2020-10-28 15:01:16,430 INFO L274 CegarLoopResult]: For program point L998(lines 998 2891) no Hoare annotation was computed. [2020-10-28 15:01:16,430 INFO L274 CegarLoopResult]: For program point L2452(lines 2452 2667) no Hoare annotation was computed. [2020-10-28 15:01:16,430 INFO L274 CegarLoopResult]: For program point L1329(lines 1329 2840) no Hoare annotation was computed. [2020-10-28 15:01:16,430 INFO L274 CegarLoopResult]: For program point L74(lines 74 286) no Hoare annotation was computed. [2020-10-28 15:01:16,430 INFO L274 CegarLoopResult]: For program point L1594(lines 1594 2799) no Hoare annotation was computed. [2020-10-28 15:01:16,431 INFO L274 CegarLoopResult]: For program point L2585(lines 2585 2647) no Hoare annotation was computed. [2020-10-28 15:01:16,431 INFO L274 CegarLoopResult]: For program point L471(lines 471 2972) no Hoare annotation was computed. [2020-10-28 15:01:16,431 INFO L274 CegarLoopResult]: For program point L2519(lines 2519 2657) no Hoare annotation was computed. [2020-10-28 15:01:16,431 INFO L270 CegarLoopResult]: At program point L207(line 207) the Hoare annotation is: false [2020-10-28 15:01:16,431 INFO L274 CegarLoopResult]: For program point L207-1(line 207) no Hoare annotation was computed. [2020-10-28 15:01:16,431 INFO L274 CegarLoopResult]: For program point L736(lines 736 2931) no Hoare annotation was computed. [2020-10-28 15:01:16,431 INFO L274 CegarLoopResult]: For program point L1727(lines 1727 2779) no Hoare annotation was computed. [2020-10-28 15:01:16,431 INFO L274 CegarLoopResult]: For program point L1661(lines 1661 2789) no Hoare annotation was computed. [2020-10-28 15:01:16,431 INFO L270 CegarLoopResult]: At program point L76(line 76) the Hoare annotation is: false [2020-10-28 15:01:16,431 INFO L274 CegarLoopResult]: For program point L76-1(line 76) no Hoare annotation was computed. [2020-10-28 15:01:16,432 INFO L274 CegarLoopResult]: For program point L1992(lines 1992 2738) no Hoare annotation was computed. [2020-10-28 15:01:16,432 INFO L274 CegarLoopResult]: For program point L869(lines 869 2911) no Hoare annotation was computed. [2020-10-28 15:01:16,432 INFO L274 CegarLoopResult]: For program point L803(lines 803 2921) no Hoare annotation was computed. [2020-10-28 15:01:16,432 INFO L274 CegarLoopResult]: For program point L2257(lines 2257 2697) no Hoare annotation was computed. [2020-10-28 15:01:16,432 INFO L274 CegarLoopResult]: For program point L143(lines 143 234) no Hoare annotation was computed. [2020-10-28 15:01:16,432 INFO L274 CegarLoopResult]: For program point L1134(lines 1134 2870) no Hoare annotation was computed. [2020-10-28 15:01:16,432 INFO L274 CegarLoopResult]: For program point L1399(lines 1399 2829) no Hoare annotation was computed. [2020-10-28 15:01:16,432 INFO L274 CegarLoopResult]: For program point L2390(lines 2390 2677) no Hoare annotation was computed. [2020-10-28 15:01:16,432 INFO L274 CegarLoopResult]: For program point L2324(lines 2324 2687) no Hoare annotation was computed. [2020-10-28 15:01:16,432 INFO L274 CegarLoopResult]: For program point L541(lines 541 2961) no Hoare annotation was computed. [2020-10-28 15:01:16,432 INFO L274 CegarLoopResult]: For program point L1532(lines 1532 2809) no Hoare annotation was computed. [2020-10-28 15:01:16,432 INFO L274 CegarLoopResult]: For program point L1466(lines 1466 2819) no Hoare annotation was computed. [2020-10-28 15:01:16,433 INFO L270 CegarLoopResult]: At program point L145(line 145) the Hoare annotation is: false [2020-10-28 15:01:16,433 INFO L274 CegarLoopResult]: For program point L145-1(line 145) no Hoare annotation was computed. [2020-10-28 15:01:16,433 INFO L274 CegarLoopResult]: For program point L1797(lines 1797 2768) no Hoare annotation was computed. [2020-10-28 15:01:16,433 INFO L274 CegarLoopResult]: For program point L674(lines 674 2941) no Hoare annotation was computed. [2020-10-28 15:01:16,433 INFO L274 CegarLoopResult]: For program point L608(lines 608 2951) no Hoare annotation was computed. [2020-10-28 15:01:16,433 INFO L274 CegarLoopResult]: For program point L2062(lines 2062 2727) no Hoare annotation was computed. [2020-10-28 15:01:16,433 INFO L274 CegarLoopResult]: For program point L939(lines 939 2900) no Hoare annotation was computed. [2020-10-28 15:01:16,433 INFO L274 CegarLoopResult]: For program point L1204(lines 1204 2859) no Hoare annotation was computed. [2020-10-28 15:01:16,433 INFO L274 CegarLoopResult]: For program point L2195(lines 2195 2707) no Hoare annotation was computed. [2020-10-28 15:01:16,433 INFO L274 CegarLoopResult]: For program point L2129(lines 2129 2717) no Hoare annotation was computed. [2020-10-28 15:01:16,433 INFO L274 CegarLoopResult]: For program point L2460(lines 2460 2666) no Hoare annotation was computed. [2020-10-28 15:01:16,433 INFO L274 CegarLoopResult]: For program point L346(lines 346 2991) no Hoare annotation was computed. [2020-10-28 15:01:16,434 INFO L274 CegarLoopResult]: For program point L1337(lines 1337 2839) no Hoare annotation was computed. [2020-10-28 15:01:16,435 INFO L270 CegarLoopResult]: At program point L280(lines 132 282) the Hoare annotation is: (and (<= 1 main_~__VERIFIER_assert__cond~3) (not (= main_~__VERIFIER_assert__cond~2 0)) (<= 1 main_~main__t~0) (not (= main_~main__tagbuf_len~0 main_~main__t~0)) (< main_~main__t~0 (+ main_~main__tagbuf_len~0 1))) [2020-10-28 15:01:16,435 INFO L274 CegarLoopResult]: For program point L1271(lines 1271 2849) no Hoare annotation was computed. [2020-10-28 15:01:16,435 INFO L274 CegarLoopResult]: For program point L1602(lines 1602 2798) no Hoare annotation was computed. [2020-10-28 15:01:16,435 INFO L274 CegarLoopResult]: For program point L479(lines 479 2971) no Hoare annotation was computed. [2020-10-28 15:01:16,435 INFO L274 CegarLoopResult]: For program point L413(lines 413 2981) no Hoare annotation was computed. [2020-10-28 15:01:16,435 INFO L274 CegarLoopResult]: For program point L1867(lines 1867 2757) no Hoare annotation was computed. [2020-10-28 15:01:16,435 INFO L274 CegarLoopResult]: For program point L744(lines 744 2930) no Hoare annotation was computed. [2020-10-28 15:01:16,435 INFO L274 CegarLoopResult]: For program point L1009(lines 1009 2889) no Hoare annotation was computed. [2020-10-28 15:01:16,435 INFO L274 CegarLoopResult]: For program point L2000(lines 2000 2737) no Hoare annotation was computed. [2020-10-28 15:01:16,435 INFO L274 CegarLoopResult]: For program point L1934(lines 1934 2747) no Hoare annotation was computed. [2020-10-28 15:01:16,435 INFO L274 CegarLoopResult]: For program point L217(lines 217 227) no Hoare annotation was computed. [2020-10-28 15:01:16,436 INFO L274 CegarLoopResult]: For program point L2265(lines 2265 2696) no Hoare annotation was computed. [2020-10-28 15:01:16,436 INFO L274 CegarLoopResult]: For program point L1142(lines 1142 2869) no Hoare annotation was computed. [2020-10-28 15:01:16,436 INFO L274 CegarLoopResult]: For program point L1076(lines 1076 2879) no Hoare annotation was computed. [2020-10-28 15:01:16,436 INFO L274 CegarLoopResult]: For program point L2530(lines 2530 2655) no Hoare annotation was computed. [2020-10-28 15:01:16,436 INFO L274 CegarLoopResult]: For program point L1407(lines 1407 2828) no Hoare annotation was computed. [2020-10-28 15:01:16,436 INFO L274 CegarLoopResult]: For program point L86(lines 86 284) no Hoare annotation was computed. [2020-10-28 15:01:16,436 INFO L274 CegarLoopResult]: For program point L1672(lines 1672 2787) no Hoare annotation was computed. [2020-10-28 15:01:16,436 INFO L274 CegarLoopResult]: For program point L549(lines 549 2960) no Hoare annotation was computed. [2020-10-28 15:01:16,436 INFO L270 CegarLoopResult]: At program point L219(line 219) the Hoare annotation is: false [2020-10-28 15:01:16,436 INFO L274 CegarLoopResult]: For program point L219-1(line 219) no Hoare annotation was computed. [2020-10-28 15:01:16,436 INFO L274 CegarLoopResult]: For program point L21(lines 21 3007) no Hoare annotation was computed. [2020-10-28 15:01:16,436 INFO L274 CegarLoopResult]: For program point L814(lines 814 2919) no Hoare annotation was computed. [2020-10-28 15:01:16,436 INFO L274 CegarLoopResult]: For program point L1805(lines 1805 2767) no Hoare annotation was computed. [2020-10-28 15:01:16,437 INFO L274 CegarLoopResult]: For program point L1739(lines 1739 2777) no Hoare annotation was computed. [2020-10-28 15:01:16,437 INFO L270 CegarLoopResult]: At program point L88(line 88) the Hoare annotation is: false [2020-10-28 15:01:16,437 INFO L274 CegarLoopResult]: For program point L88-1(line 88) no Hoare annotation was computed. [2020-10-28 15:01:16,439 INFO L274 CegarLoopResult]: For program point L2070(lines 2070 2726) no Hoare annotation was computed. [2020-10-28 15:01:16,439 INFO L274 CegarLoopResult]: For program point L947(lines 947 2899) no Hoare annotation was computed. [2020-10-28 15:01:16,440 INFO L274 CegarLoopResult]: For program point L881(lines 881 2909) no Hoare annotation was computed. [2020-10-28 15:01:16,440 INFO L274 CegarLoopResult]: For program point L2335(lines 2335 2685) no Hoare annotation was computed. [2020-10-28 15:01:16,440 INFO L274 CegarLoopResult]: For program point L1212(lines 1212 2858) no Hoare annotation was computed. [2020-10-28 15:01:16,440 INFO L274 CegarLoopResult]: For program point L155(lines 155 232) no Hoare annotation was computed. [2020-10-28 15:01:16,440 INFO L274 CegarLoopResult]: For program point L1477(lines 1477 2817) no Hoare annotation was computed. [2020-10-28 15:01:16,440 INFO L274 CegarLoopResult]: For program point L2468(lines 2468 2665) no Hoare annotation was computed. [2020-10-28 15:01:16,440 INFO L274 CegarLoopResult]: For program point L2402(lines 2402 2675) no Hoare annotation was computed. [2020-10-28 15:01:16,440 INFO L274 CegarLoopResult]: For program point L354(lines 354 2990) no Hoare annotation was computed. [2020-10-28 15:01:16,440 INFO L274 CegarLoopResult]: For program point L619(lines 619 2949) no Hoare annotation was computed. [2020-10-28 15:01:16,440 INFO L274 CegarLoopResult]: For program point L1610(lines 1610 2797) no Hoare annotation was computed. [2020-10-28 15:01:16,440 INFO L274 CegarLoopResult]: For program point L1544(lines 1544 2807) no Hoare annotation was computed. [2020-10-28 15:01:16,441 INFO L270 CegarLoopResult]: At program point L157(line 157) the Hoare annotation is: false [2020-10-28 15:01:16,441 INFO L274 CegarLoopResult]: For program point L157-1(line 157) no Hoare annotation was computed. [2020-10-28 15:01:16,441 INFO L274 CegarLoopResult]: For program point L25(lines 25 3002) no Hoare annotation was computed. [2020-10-28 15:01:16,441 INFO L274 CegarLoopResult]: For program point L1875(lines 1875 2756) no Hoare annotation was computed. [2020-10-28 15:01:16,441 INFO L274 CegarLoopResult]: For program point L752(lines 752 2929) no Hoare annotation was computed. [2020-10-28 15:01:16,441 INFO L274 CegarLoopResult]: For program point L686(lines 686 2939) no Hoare annotation was computed. [2020-10-28 15:01:16,441 INFO L274 CegarLoopResult]: For program point L2602(lines 2602 2645) no Hoare annotation was computed. [2020-10-28 15:01:16,441 INFO L274 CegarLoopResult]: For program point L2140(lines 2140 2715) no Hoare annotation was computed. [2020-10-28 15:01:16,441 INFO L274 CegarLoopResult]: For program point L1017(lines 1017 2888) no Hoare annotation was computed. [2020-10-28 15:01:16,441 INFO L274 CegarLoopResult]: For program point L1282(lines 1282 2847) no Hoare annotation was computed. [2020-10-28 15:01:16,441 INFO L274 CegarLoopResult]: For program point L2273(lines 2273 2695) no Hoare annotation was computed. [2020-10-28 15:01:16,442 INFO L274 CegarLoopResult]: For program point L2207(lines 2207 2705) no Hoare annotation was computed. [2020-10-28 15:01:16,442 INFO L270 CegarLoopResult]: At program point L2604(line 2604) the Hoare annotation is: false [2020-10-28 15:01:16,442 INFO L274 CegarLoopResult]: For program point L2538(lines 2538 2654) no Hoare annotation was computed. [2020-10-28 15:01:16,442 INFO L274 CegarLoopResult]: For program point L2604-1(line 2604) no Hoare annotation was computed. [2020-10-28 15:01:16,442 INFO L274 CegarLoopResult]: For program point L424(lines 424 2979) no Hoare annotation was computed. [2020-10-28 15:01:16,442 INFO L274 CegarLoopResult]: For program point L1415(lines 1415 2827) no Hoare annotation was computed. [2020-10-28 15:01:16,442 INFO L274 CegarLoopResult]: For program point L1349(lines 1349 2837) no Hoare annotation was computed. [2020-10-28 15:01:16,442 INFO L270 CegarLoopResult]: At program point L226(lines 92 284) the Hoare annotation is: (and (<= 1 main_~__VERIFIER_assert__cond~3) (not (= main_~__VERIFIER_assert__cond~2 0)) (<= 1 main_~main__t~0) (<= main_~main__t~0 main_~main__tagbuf_len~0)) [2020-10-28 15:01:16,442 INFO L274 CegarLoopResult]: For program point L1680(lines 1680 2786) no Hoare annotation was computed. [2020-10-28 15:01:16,443 INFO L274 CegarLoopResult]: For program point L557(lines 557 2959) no Hoare annotation was computed. [2020-10-28 15:01:16,443 INFO L274 CegarLoopResult]: For program point L491(lines 491 2969) no Hoare annotation was computed. [2020-10-28 15:01:16,443 INFO L274 CegarLoopResult]: For program point L1945(lines 1945 2745) no Hoare annotation was computed. [2020-10-28 15:01:16,443 INFO L274 CegarLoopResult]: For program point L822(lines 822 2918) no Hoare annotation was computed. [2020-10-28 15:01:16,443 INFO L274 CegarLoopResult]: For program point L1087(lines 1087 2877) no Hoare annotation was computed. [2020-10-28 15:01:16,443 INFO L274 CegarLoopResult]: For program point L2078(lines 2078 2725) no Hoare annotation was computed. [2020-10-28 15:01:16,443 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 16 3008) the Hoare annotation is: (and (= |old(~__tmp_3904_0~0)| ~__tmp_3904_0~0) (= |old(~__return_2598~0)| ~__return_2598~0) (= |old(~__tmp_3904_1~0)| ~__tmp_3904_1~0) (= |old(~__tmp_2609_0~0)| ~__tmp_2609_0~0)) [2020-10-28 15:01:16,443 INFO L274 CegarLoopResult]: For program point L2012(lines 2012 2735) no Hoare annotation was computed. [2020-10-28 15:01:16,443 INFO L274 CegarLoopResult]: For program point L2343(lines 2343 2684) no Hoare annotation was computed. [2020-10-28 15:01:16,444 INFO L274 CegarLoopResult]: For program point L1220(lines 1220 2857) no Hoare annotation was computed. [2020-10-28 15:01:16,444 INFO L274 CegarLoopResult]: For program point L1154(lines 1154 2867) no Hoare annotation was computed. [2020-10-28 15:01:16,444 INFO L274 CegarLoopResult]: For program point L1485(lines 1485 2816) no Hoare annotation was computed. [2020-10-28 15:01:16,444 INFO L274 CegarLoopResult]: For program point L362(lines 362 2989) no Hoare annotation was computed. [2020-10-28 15:01:16,444 INFO L274 CegarLoopResult]: For program point L296(lines 296 2999) no Hoare annotation was computed. [2020-10-28 15:01:16,444 INFO L274 CegarLoopResult]: For program point L164(lines 164 231) no Hoare annotation was computed. [2020-10-28 15:01:16,444 INFO L274 CegarLoopResult]: For program point L1750(lines 1750 2775) no Hoare annotation was computed. [2020-10-28 15:01:16,444 INFO L274 CegarLoopResult]: For program point L627(lines 627 2948) no Hoare annotation was computed. [2020-10-28 15:01:16,444 INFO L274 CegarLoopResult]: For program point L33(lines 33 57) no Hoare annotation was computed. [2020-10-28 15:01:16,444 INFO L270 CegarLoopResult]: At program point L3006(lines 21 3007) the Hoare annotation is: (or (and (= |old(~__tmp_3904_0~0)| ~__tmp_3904_0~0) (= |old(~__return_2598~0)| ~__return_2598~0) (= |old(~__tmp_3904_1~0)| ~__tmp_3904_1~0) (= |old(~__tmp_2609_0~0)| ~__tmp_2609_0~0)) (<= 0 main_~main__t~0)) [2020-10-28 15:01:16,444 INFO L274 CegarLoopResult]: For program point L892(lines 892 2907) no Hoare annotation was computed. [2020-10-28 15:01:16,444 INFO L274 CegarLoopResult]: For program point L1883(lines 1883 2755) no Hoare annotation was computed. [2020-10-28 15:01:16,445 INFO L274 CegarLoopResult]: For program point L1817(lines 1817 2765) no Hoare annotation was computed. [2020-10-28 15:01:16,445 INFO L274 CegarLoopResult]: For program point L2148(lines 2148 2714) no Hoare annotation was computed. [2020-10-28 15:01:16,445 INFO L274 CegarLoopResult]: For program point L1025(lines 1025 2887) no Hoare annotation was computed. [2020-10-28 15:01:16,445 INFO L274 CegarLoopResult]: For program point L959(lines 959 2897) no Hoare annotation was computed. [2020-10-28 15:01:16,445 INFO L274 CegarLoopResult]: For program point L2413(lines 2413 2673) no Hoare annotation was computed. [2020-10-28 15:01:16,445 INFO L274 CegarLoopResult]: For program point L1290(lines 1290 2846) no Hoare annotation was computed. [2020-10-28 15:01:16,445 INFO L270 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: false [2020-10-28 15:01:16,445 INFO L274 CegarLoopResult]: For program point L35-1(line 35) no Hoare annotation was computed. [2020-10-28 15:01:16,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 03:01:16 BoogieIcfgContainer [2020-10-28 15:01:16,472 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 15:01:16,477 INFO L168 Benchmark]: Toolchain (without parser) took 51761.77 ms. Allocated memory was 153.1 MB in the beginning and 802.2 MB in the end (delta: 649.1 MB). Free memory was 126.6 MB in the beginning and 456.1 MB in the end (delta: -329.4 MB). Peak memory consumption was 319.8 MB. Max. memory is 8.0 GB. [2020-10-28 15:01:16,480 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 153.1 MB. Free memory is still 124.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 15:01:16,484 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1100.71 ms. Allocated memory is still 153.1 MB. Free memory was 125.9 MB in the beginning and 126.0 MB in the end (delta: -116.1 kB). Peak memory consumption was 33.7 MB. Max. memory is 8.0 GB. [2020-10-28 15:01:16,485 INFO L168 Benchmark]: Boogie Preprocessor took 118.83 ms. Allocated memory is still 153.1 MB. Free memory was 126.0 MB in the beginning and 121.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-28 15:01:16,488 INFO L168 Benchmark]: RCFGBuilder took 1772.90 ms. Allocated memory was 153.1 MB in the beginning and 188.7 MB in the end (delta: 35.7 MB). Free memory was 121.4 MB in the beginning and 74.8 MB in the end (delta: 46.6 MB). Peak memory consumption was 82.8 MB. Max. memory is 8.0 GB. [2020-10-28 15:01:16,488 INFO L168 Benchmark]: TraceAbstraction took 48754.47 ms. Allocated memory was 188.7 MB in the beginning and 802.2 MB in the end (delta: 613.4 MB). Free memory was 74.3 MB in the beginning and 456.1 MB in the end (delta: -381.8 MB). Peak memory consumption was 231.6 MB. Max. memory is 8.0 GB. [2020-10-28 15:01:16,493 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 153.1 MB. Free memory is still 124.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1100.71 ms. Allocated memory is still 153.1 MB. Free memory was 125.9 MB in the beginning and 126.0 MB in the end (delta: -116.1 kB). Peak memory consumption was 33.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 118.83 ms. Allocated memory is still 153.1 MB. Free memory was 126.0 MB in the beginning and 121.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1772.90 ms. Allocated memory was 153.1 MB in the beginning and 188.7 MB in the end (delta: 35.7 MB). Free memory was 121.4 MB in the beginning and 74.8 MB in the end (delta: 46.6 MB). Peak memory consumption was 82.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 48754.47 ms. Allocated memory was 188.7 MB in the beginning and 802.2 MB in the end (delta: 613.4 MB). Free memory was 74.3 MB in the beginning and 456.1 MB in the end (delta: -381.8 MB). Peak memory consumption was 231.6 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: 64]: Loop Invariant Derived loop invariant: main__t + 1 <= main__tagbuf_len && 0 <= main__t - InvariantResult [Line: 2591]: Loop Invariant Derived loop invariant: (21 <= main__t && !(main__tagbuf_len == main__t)) && main__t < main__tagbuf_len + 1 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (((\old(__tmp_3904_0) == __tmp_3904_0 && \old(__return_2598) == __return_2598) && \old(__tmp_3904_1) == __tmp_3904_1) && \old(__tmp_2609_0) == __tmp_2609_0) || 0 <= main__t - InvariantResult [Line: 92]: Loop Invariant Derived loop invariant: ((1 <= __VERIFIER_assert__cond && !(__VERIFIER_assert__cond == 0)) && 1 <= main__t) && main__t <= main__tagbuf_len - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: (((1 <= __VERIFIER_assert__cond && !(__VERIFIER_assert__cond == 0)) && 1 <= main__t) && !(main__tagbuf_len == main__t)) && main__t < main__tagbuf_len + 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: main__t <= main__tagbuf_len && 0 <= main__t - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 317 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 48.0s, OverallIterations: 18, TraceHistogramMax: 1, AutomataDifference: 26.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3091 SDtfs, 12851 SDslu, 909 SDs, 0 SdLazy, 13531 SolverSat, 3246 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 341 GetRequests, 63 SyntacticMatches, 112 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=313occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 18 MinimizatonAttempts, 101 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 27 LocationsWithAnnotation, 44 PreInvPairs, 54 NumberOfFragments, 158 HoareAnnotationTreeSize, 44 FomulaSimplifications, 3398 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 27 FomulaSimplificationsInter, 570 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 20.5s InterpolantComputationTime, 781 NumberOfCodeBlocks, 781 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 763 ConstructedInterpolants, 0 QuantifiedInterpolants, 367810 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 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...