/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/locks/test_locks_7.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:18:37,075 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:18:37,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:18:37,125 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:18:37,126 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:18:37,133 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:18:37,136 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:18:37,139 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:18:37,143 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:18:37,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:18:37,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:18:37,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:18:37,148 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:18:37,151 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:18:37,154 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:18:37,155 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:18:37,157 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:18:37,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:18:37,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:18:37,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:18:37,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:18:37,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:18:37,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:18:37,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:18:37,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:18:37,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:18:37,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:18:37,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:18:37,193 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:18:37,198 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:18:37,199 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:18:37,200 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:18:37,202 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:18:37,203 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:18:37,206 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:18:37,206 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:18:37,207 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:18:37,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:18:37,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:18:37,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:18:37,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:18:37,211 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 [2020-09-25 12:18:37,255 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:18:37,255 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:18:37,257 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:18:37,258 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:18:37,258 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:18:37,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:18:37,258 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:18:37,259 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:18:37,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:18:37,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:18:37,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:18:37,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:18:37,261 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:18:37,261 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:18:37,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:18:37,261 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:18:37,262 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:18:37,262 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:18:37,262 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:18:37,262 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:18:37,262 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:18:37,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:18:37,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:18:37,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:18:37,263 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:18:37,263 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:18:37,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:18:37,264 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:18:37,264 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:18:37,264 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:18:37,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:18:37,752 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:18:37,757 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:18:37,759 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:18:37,759 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:18:37,761 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_7.c [2020-09-25 12:18:37,860 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/36bc458cf/9c7302764a444c6caecc859f3063f893/FLAG41ba693cc [2020-09-25 12:18:38,415 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:18:38,416 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/locks/test_locks_7.c [2020-09-25 12:18:38,426 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/36bc458cf/9c7302764a444c6caecc859f3063f893/FLAG41ba693cc [2020-09-25 12:18:38,752 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/36bc458cf/9c7302764a444c6caecc859f3063f893 [2020-09-25 12:18:38,768 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:18:38,774 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:18:38,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:18:38,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:18:38,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:18:38,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:18:38" (1/1) ... [2020-09-25 12:18:38,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d876c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:38, skipping insertion in model container [2020-09-25 12:18:38,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:18:38" (1/1) ... [2020-09-25 12:18:38,796 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:18:38,832 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:18:39,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:18:39,085 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:18:39,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:18:39,125 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:18:39,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:39 WrapperNode [2020-09-25 12:18:39,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:18:39,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:18:39,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:18:39,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:18:39,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:39" (1/1) ... [2020-09-25 12:18:39,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:39" (1/1) ... [2020-09-25 12:18:39,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:39" (1/1) ... [2020-09-25 12:18:39,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:39" (1/1) ... [2020-09-25 12:18:39,233 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:39" (1/1) ... [2020-09-25 12:18:39,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:39" (1/1) ... [2020-09-25 12:18:39,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:39" (1/1) ... [2020-09-25 12:18:39,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:18:39,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:18:39,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:18:39,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:18:39,248 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:39" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:18:39,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:18:39,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:18:39,332 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:18:39,332 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:18:39,332 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:18:39,332 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:18:39,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:18:39,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:18:39,681 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:18:39,682 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 12:18:39,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:18:39 BoogieIcfgContainer [2020-09-25 12:18:39,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:18:39,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:18:39,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:18:39,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:18:39,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:18:38" (1/3) ... [2020-09-25 12:18:39,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32da387d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:18:39, skipping insertion in model container [2020-09-25 12:18:39,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:39" (2/3) ... [2020-09-25 12:18:39,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32da387d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:18:39, skipping insertion in model container [2020-09-25 12:18:39,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:18:39" (3/3) ... [2020-09-25 12:18:39,702 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_7.c [2020-09-25 12:18:39,715 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:18:39,726 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:18:39,751 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:18:39,787 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:18:39,787 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:18:39,787 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:18:39,787 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:18:39,787 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:18:39,788 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:18:39,788 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:18:39,788 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:18:39,814 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states. [2020-09-25 12:18:39,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-25 12:18:39,824 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:39,825 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] [2020-09-25 12:18:39,825 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:39,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:39,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1826051656, now seen corresponding path program 1 times [2020-09-25 12:18:39,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:39,841 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [458353926] [2020-09-25 12:18:39,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:39,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:40,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:40,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:40,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-25 12:18:40,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:40,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-09-25 12:18:40,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:40,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:40,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:40,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-09-25 12:18:40,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:18:40,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 12:18:40,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:40,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:40,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:40,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:40,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:40,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:40,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:18:40,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:40,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:40,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:40,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:40,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:40,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:40,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:40,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [458353926] [2020-09-25 12:18:40,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:40,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:40,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866024469] [2020-09-25 12:18:40,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:40,395 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:40,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:40,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:40,412 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 3 states. [2020-09-25 12:18:40,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:40,493 INFO L93 Difference]: Finished difference Result 191 states and 260 transitions. [2020-09-25 12:18:40,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:40,496 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2020-09-25 12:18:40,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:40,514 INFO L225 Difference]: With dead ends: 191 [2020-09-25 12:18:40,514 INFO L226 Difference]: Without dead ends: 128 [2020-09-25 12:18:40,519 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:40,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-09-25 12:18:40,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 126. [2020-09-25 12:18:40,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-09-25 12:18:40,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 164 transitions. [2020-09-25 12:18:40,587 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 164 transitions. Word has length 55 [2020-09-25 12:18:40,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:40,588 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 164 transitions. [2020-09-25 12:18:40,589 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:40,589 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 164 transitions. [2020-09-25 12:18:40,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 12:18:40,591 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:40,592 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] [2020-09-25 12:18:40,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:18:40,593 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:40,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:40,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1965492109, now seen corresponding path program 1 times [2020-09-25 12:18:40,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:40,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2095525726] [2020-09-25 12:18:40,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:40,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:40,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:40,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-25 12:18:40,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:40,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 12:18:40,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:40,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:40,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:40,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-25 12:18:40,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:18:40,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:40,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:40,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:40,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:40,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:40,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:40,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:40,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:18:40,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:40,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:40,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:40,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:40,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:40,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 12:18:40,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:40,800 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2095525726] [2020-09-25 12:18:40,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:40,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:40,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053839019] [2020-09-25 12:18:40,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:40,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:40,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:40,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:40,807 INFO L87 Difference]: Start difference. First operand 126 states and 164 transitions. Second operand 3 states. [2020-09-25 12:18:40,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:40,840 INFO L93 Difference]: Finished difference Result 154 states and 202 transitions. [2020-09-25 12:18:40,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:40,841 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-09-25 12:18:40,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:40,844 INFO L225 Difference]: With dead ends: 154 [2020-09-25 12:18:40,844 INFO L226 Difference]: Without dead ends: 152 [2020-09-25 12:18:40,846 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:40,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-09-25 12:18:40,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 126. [2020-09-25 12:18:40,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-09-25 12:18:40,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 163 transitions. [2020-09-25 12:18:40,862 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 163 transitions. Word has length 56 [2020-09-25 12:18:40,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:40,862 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 163 transitions. [2020-09-25 12:18:40,862 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:40,863 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 163 transitions. [2020-09-25 12:18:40,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 12:18:40,865 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:40,865 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] [2020-09-25 12:18:40,865 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:18:40,866 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:40,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:40,866 INFO L82 PathProgramCache]: Analyzing trace with hash 773271458, now seen corresponding path program 1 times [2020-09-25 12:18:40,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:40,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2051584863] [2020-09-25 12:18:40,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:40,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:40,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:40,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:40,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-25 12:18:40,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:40,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-25 12:18:40,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:40,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:40,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:40,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-25 12:18:40,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:18:40,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:41,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:41,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:41,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:41,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:41,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:41,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:41,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:18:41,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:41,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:41,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:41,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:41,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:41,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:41,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:41,039 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2051584863] [2020-09-25 12:18:41,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:41,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:41,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785992348] [2020-09-25 12:18:41,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:41,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:41,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:41,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:41,043 INFO L87 Difference]: Start difference. First operand 126 states and 163 transitions. Second operand 3 states. [2020-09-25 12:18:41,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:41,088 INFO L93 Difference]: Finished difference Result 306 states and 415 transitions. [2020-09-25 12:18:41,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:41,089 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-09-25 12:18:41,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:41,094 INFO L225 Difference]: With dead ends: 306 [2020-09-25 12:18:41,094 INFO L226 Difference]: Without dead ends: 213 [2020-09-25 12:18:41,098 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:41,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-09-25 12:18:41,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 211. [2020-09-25 12:18:41,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-09-25 12:18:41,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 280 transitions. [2020-09-25 12:18:41,122 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 280 transitions. Word has length 56 [2020-09-25 12:18:41,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:41,123 INFO L479 AbstractCegarLoop]: Abstraction has 211 states and 280 transitions. [2020-09-25 12:18:41,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:41,123 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 280 transitions. [2020-09-25 12:18:41,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-25 12:18:41,125 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:41,125 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] [2020-09-25 12:18:41,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:18:41,126 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:41,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:41,126 INFO L82 PathProgramCache]: Analyzing trace with hash -610540190, now seen corresponding path program 1 times [2020-09-25 12:18:41,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:41,127 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1613281007] [2020-09-25 12:18:41,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:41,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:41,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:41,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:41,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 12:18:41,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:41,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 12:18:41,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:41,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:41,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:41,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-09-25 12:18:41,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:18:41,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:41,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:41,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:41,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:41,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:41,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:41,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:41,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:18:41,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:41,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:41,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:41,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:41,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:41,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:41,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:41,252 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1613281007] [2020-09-25 12:18:41,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:41,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:41,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177475775] [2020-09-25 12:18:41,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:41,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:41,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:41,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:41,256 INFO L87 Difference]: Start difference. First operand 211 states and 280 transitions. Second operand 3 states. [2020-09-25 12:18:41,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:41,285 INFO L93 Difference]: Finished difference Result 259 states and 346 transitions. [2020-09-25 12:18:41,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:41,285 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2020-09-25 12:18:41,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:41,288 INFO L225 Difference]: With dead ends: 259 [2020-09-25 12:18:41,288 INFO L226 Difference]: Without dead ends: 257 [2020-09-25 12:18:41,289 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:41,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-09-25 12:18:41,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 211. [2020-09-25 12:18:41,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-09-25 12:18:41,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 278 transitions. [2020-09-25 12:18:41,325 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 278 transitions. Word has length 57 [2020-09-25 12:18:41,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:41,329 INFO L479 AbstractCegarLoop]: Abstraction has 211 states and 278 transitions. [2020-09-25 12:18:41,329 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:41,329 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 278 transitions. [2020-09-25 12:18:41,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-25 12:18:41,334 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:41,334 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] [2020-09-25 12:18:41,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 12:18:41,335 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:41,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:41,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1798143236, now seen corresponding path program 1 times [2020-09-25 12:18:41,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:41,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [938846042] [2020-09-25 12:18:41,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:41,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:41,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:41,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:41,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 12:18:41,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:41,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 12:18:41,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:41,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:41,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:41,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-09-25 12:18:41,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:18:41,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:41,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:41,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:41,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:41,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:41,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:41,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:41,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:18:41,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:41,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:41,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:41,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:41,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:41,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:41,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:41,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [938846042] [2020-09-25 12:18:41,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:41,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:41,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209813245] [2020-09-25 12:18:41,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:41,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:41,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:41,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:41,465 INFO L87 Difference]: Start difference. First operand 211 states and 278 transitions. Second operand 3 states. [2020-09-25 12:18:41,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:41,485 INFO L93 Difference]: Finished difference Result 555 states and 752 transitions. [2020-09-25 12:18:41,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:41,486 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2020-09-25 12:18:41,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:41,488 INFO L225 Difference]: With dead ends: 555 [2020-09-25 12:18:41,489 INFO L226 Difference]: Without dead ends: 377 [2020-09-25 12:18:41,490 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:41,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2020-09-25 12:18:41,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 375. [2020-09-25 12:18:41,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-09-25 12:18:41,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 498 transitions. [2020-09-25 12:18:41,509 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 498 transitions. Word has length 57 [2020-09-25 12:18:41,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:41,509 INFO L479 AbstractCegarLoop]: Abstraction has 375 states and 498 transitions. [2020-09-25 12:18:41,509 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:41,510 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 498 transitions. [2020-09-25 12:18:41,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 12:18:41,512 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:41,512 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] [2020-09-25 12:18:41,512 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 12:18:41,512 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:41,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:41,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1136837537, now seen corresponding path program 1 times [2020-09-25 12:18:41,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:41,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [896139529] [2020-09-25 12:18:41,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:41,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:41,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:41,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:41,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 12:18:41,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:41,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 12:18:41,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:41,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:41,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:41,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-25 12:18:41,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:18:41,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:41,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:41,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:41,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:41,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:41,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:41,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:41,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:18:41,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:41,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:41,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:41,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:41,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:41,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:41,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:41,603 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [896139529] [2020-09-25 12:18:41,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:41,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:41,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391088824] [2020-09-25 12:18:41,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:41,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:41,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:41,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:41,605 INFO L87 Difference]: Start difference. First operand 375 states and 498 transitions. Second operand 3 states. [2020-09-25 12:18:41,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:41,632 INFO L93 Difference]: Finished difference Result 459 states and 612 transitions. [2020-09-25 12:18:41,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:41,633 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2020-09-25 12:18:41,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:41,636 INFO L225 Difference]: With dead ends: 459 [2020-09-25 12:18:41,636 INFO L226 Difference]: Without dead ends: 457 [2020-09-25 12:18:41,637 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:41,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2020-09-25 12:18:41,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 375. [2020-09-25 12:18:41,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-09-25 12:18:41,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 494 transitions. [2020-09-25 12:18:41,652 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 494 transitions. Word has length 58 [2020-09-25 12:18:41,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:41,653 INFO L479 AbstractCegarLoop]: Abstraction has 375 states and 494 transitions. [2020-09-25 12:18:41,653 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:41,653 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 494 transitions. [2020-09-25 12:18:41,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 12:18:41,655 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:41,655 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] [2020-09-25 12:18:41,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 12:18:41,656 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:41,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:41,656 INFO L82 PathProgramCache]: Analyzing trace with hash 92380246, now seen corresponding path program 1 times [2020-09-25 12:18:41,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:41,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1022359991] [2020-09-25 12:18:41,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:41,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:41,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:41,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:41,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 12:18:41,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:41,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 12:18:41,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:41,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:41,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:41,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-25 12:18:41,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:18:41,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:41,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:41,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:41,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:41,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:41,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:41,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:41,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:18:41,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:41,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:41,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:41,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:41,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:41,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:41,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:41,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1022359991] [2020-09-25 12:18:41,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:41,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:41,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261220728] [2020-09-25 12:18:41,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:41,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:41,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:41,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:41,742 INFO L87 Difference]: Start difference. First operand 375 states and 494 transitions. Second operand 3 states. [2020-09-25 12:18:41,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:41,770 INFO L93 Difference]: Finished difference Result 1035 states and 1384 transitions. [2020-09-25 12:18:41,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:41,770 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2020-09-25 12:18:41,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:41,775 INFO L225 Difference]: With dead ends: 1035 [2020-09-25 12:18:41,775 INFO L226 Difference]: Without dead ends: 693 [2020-09-25 12:18:41,777 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:41,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2020-09-25 12:18:41,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 691. [2020-09-25 12:18:41,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2020-09-25 12:18:41,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 906 transitions. [2020-09-25 12:18:41,803 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 906 transitions. Word has length 58 [2020-09-25 12:18:41,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:41,804 INFO L479 AbstractCegarLoop]: Abstraction has 691 states and 906 transitions. [2020-09-25 12:18:41,804 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:41,804 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 906 transitions. [2020-09-25 12:18:41,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-09-25 12:18:41,806 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:41,806 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] [2020-09-25 12:18:41,807 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 12:18:41,807 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:41,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:41,807 INFO L82 PathProgramCache]: Analyzing trace with hash -529027402, now seen corresponding path program 1 times [2020-09-25 12:18:41,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:41,808 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1288508281] [2020-09-25 12:18:41,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:41,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:41,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:41,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:41,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-25 12:18:41,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:41,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 12:18:41,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:41,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:41,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:41,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-09-25 12:18:41,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:18:41,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:41,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:41,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:41,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:41,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:41,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:41,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:41,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:18:41,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:41,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:41,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:41,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:41,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:41,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:41,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:41,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1288508281] [2020-09-25 12:18:41,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:41,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:41,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512869284] [2020-09-25 12:18:41,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:41,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:41,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:41,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:41,901 INFO L87 Difference]: Start difference. First operand 691 states and 906 transitions. Second operand 3 states. [2020-09-25 12:18:41,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:41,923 INFO L93 Difference]: Finished difference Result 839 states and 1100 transitions. [2020-09-25 12:18:41,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:41,924 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2020-09-25 12:18:41,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:41,929 INFO L225 Difference]: With dead ends: 839 [2020-09-25 12:18:41,929 INFO L226 Difference]: Without dead ends: 837 [2020-09-25 12:18:41,930 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:41,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2020-09-25 12:18:41,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 691. [2020-09-25 12:18:41,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2020-09-25 12:18:41,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 898 transitions. [2020-09-25 12:18:41,961 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 898 transitions. Word has length 59 [2020-09-25 12:18:41,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:41,962 INFO L479 AbstractCegarLoop]: Abstraction has 691 states and 898 transitions. [2020-09-25 12:18:41,962 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:41,962 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 898 transitions. [2020-09-25 12:18:41,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-09-25 12:18:41,963 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:41,964 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] [2020-09-25 12:18:41,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 12:18:41,964 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:41,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:41,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1430933584, now seen corresponding path program 1 times [2020-09-25 12:18:41,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:41,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1982858097] [2020-09-25 12:18:41,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:41,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:41,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:42,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:42,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-25 12:18:42,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:42,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 12:18:42,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:42,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:42,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:42,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-09-25 12:18:42,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:18:42,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:42,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:42,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:42,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:42,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:42,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:42,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:42,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:18:42,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:42,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:42,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:42,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:42,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:42,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:42,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:42,062 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1982858097] [2020-09-25 12:18:42,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:42,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:42,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741480400] [2020-09-25 12:18:42,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:42,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:42,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:42,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:42,064 INFO L87 Difference]: Start difference. First operand 691 states and 898 transitions. Second operand 3 states. [2020-09-25 12:18:42,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:42,104 INFO L93 Difference]: Finished difference Result 1959 states and 2564 transitions. [2020-09-25 12:18:42,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:42,105 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2020-09-25 12:18:42,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:42,112 INFO L225 Difference]: With dead ends: 1959 [2020-09-25 12:18:42,112 INFO L226 Difference]: Without dead ends: 1301 [2020-09-25 12:18:42,114 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:42,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2020-09-25 12:18:42,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 1299. [2020-09-25 12:18:42,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1299 states. [2020-09-25 12:18:42,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 1666 transitions. [2020-09-25 12:18:42,160 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 1666 transitions. Word has length 59 [2020-09-25 12:18:42,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:42,160 INFO L479 AbstractCegarLoop]: Abstraction has 1299 states and 1666 transitions. [2020-09-25 12:18:42,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:42,160 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1666 transitions. [2020-09-25 12:18:42,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-25 12:18:42,162 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:42,162 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] [2020-09-25 12:18:42,162 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 12:18:42,163 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:42,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:42,163 INFO L82 PathProgramCache]: Analyzing trace with hash -631232587, now seen corresponding path program 1 times [2020-09-25 12:18:42,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:42,164 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [655851405] [2020-09-25 12:18:42,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:42,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:42,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:42,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:42,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 12:18:42,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:42,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 12:18:42,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:42,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:42,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:42,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-25 12:18:42,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:18:42,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:42,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:42,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:42,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:42,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:42,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:42,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:42,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:18:42,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:42,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:42,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:42,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:42,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:42,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:42,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:42,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [655851405] [2020-09-25 12:18:42,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:42,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:42,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008767449] [2020-09-25 12:18:42,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:42,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:42,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:42,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:42,245 INFO L87 Difference]: Start difference. First operand 1299 states and 1666 transitions. Second operand 3 states. [2020-09-25 12:18:42,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:42,269 INFO L93 Difference]: Finished difference Result 1559 states and 1988 transitions. [2020-09-25 12:18:42,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:42,270 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2020-09-25 12:18:42,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:42,277 INFO L225 Difference]: With dead ends: 1559 [2020-09-25 12:18:42,277 INFO L226 Difference]: Without dead ends: 1557 [2020-09-25 12:18:42,278 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:42,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1557 states. [2020-09-25 12:18:42,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1557 to 1299. [2020-09-25 12:18:42,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1299 states. [2020-09-25 12:18:42,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 1650 transitions. [2020-09-25 12:18:42,317 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 1650 transitions. Word has length 60 [2020-09-25 12:18:42,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:42,317 INFO L479 AbstractCegarLoop]: Abstraction has 1299 states and 1650 transitions. [2020-09-25 12:18:42,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:42,318 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1650 transitions. [2020-09-25 12:18:42,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-25 12:18:42,319 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:42,319 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] [2020-09-25 12:18:42,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 12:18:42,320 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:42,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:42,320 INFO L82 PathProgramCache]: Analyzing trace with hash -1409021686, now seen corresponding path program 1 times [2020-09-25 12:18:42,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:42,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1756997041] [2020-09-25 12:18:42,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:42,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:42,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:42,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:42,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 12:18:42,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:42,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 12:18:42,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:42,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:42,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:42,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-25 12:18:42,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:18:42,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:42,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:42,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:42,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:42,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:42,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:42,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:18:42,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:42,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:42,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:42,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:42,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:42,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:42,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:42,397 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1756997041] [2020-09-25 12:18:42,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:42,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:42,398 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8883768] [2020-09-25 12:18:42,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:42,399 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:42,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:42,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:42,400 INFO L87 Difference]: Start difference. First operand 1299 states and 1650 transitions. Second operand 3 states. [2020-09-25 12:18:42,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:42,440 INFO L93 Difference]: Finished difference Result 3735 states and 4756 transitions. [2020-09-25 12:18:42,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:42,441 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2020-09-25 12:18:42,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:42,451 INFO L225 Difference]: With dead ends: 3735 [2020-09-25 12:18:42,452 INFO L226 Difference]: Without dead ends: 2469 [2020-09-25 12:18:42,455 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:42,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2469 states. [2020-09-25 12:18:42,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2469 to 2467. [2020-09-25 12:18:42,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2467 states. [2020-09-25 12:18:42,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 3074 transitions. [2020-09-25 12:18:42,517 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 3074 transitions. Word has length 60 [2020-09-25 12:18:42,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:42,517 INFO L479 AbstractCegarLoop]: Abstraction has 2467 states and 3074 transitions. [2020-09-25 12:18:42,517 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:42,518 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 3074 transitions. [2020-09-25 12:18:42,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 12:18:42,520 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:42,520 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] [2020-09-25 12:18:42,520 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 12:18:42,520 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:42,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:42,521 INFO L82 PathProgramCache]: Analyzing trace with hash -729752476, now seen corresponding path program 1 times [2020-09-25 12:18:42,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:42,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1184223865] [2020-09-25 12:18:42,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:42,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:42,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:42,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:42,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 12:18:42,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:42,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 12:18:42,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:42,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:42,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:42,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 12:18:42,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:18:42,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:42,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:42,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:42,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:42,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:42,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:42,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:42,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:18:42,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:42,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:42,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:42,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:42,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:42,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:18:42,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:42,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1184223865] [2020-09-25 12:18:42,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:42,627 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:42,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004224556] [2020-09-25 12:18:42,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:42,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:42,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:42,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:42,629 INFO L87 Difference]: Start difference. First operand 2467 states and 3074 transitions. Second operand 3 states. [2020-09-25 12:18:42,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:42,735 INFO L93 Difference]: Finished difference Result 7143 states and 8900 transitions. [2020-09-25 12:18:42,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:42,736 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-09-25 12:18:42,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:42,755 INFO L225 Difference]: With dead ends: 7143 [2020-09-25 12:18:42,755 INFO L226 Difference]: Without dead ends: 3637 [2020-09-25 12:18:42,763 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:42,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3637 states. [2020-09-25 12:18:42,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3637 to 3635. [2020-09-25 12:18:42,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3635 states. [2020-09-25 12:18:42,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3635 states to 3635 states and 4370 transitions. [2020-09-25 12:18:42,889 INFO L78 Accepts]: Start accepts. Automaton has 3635 states and 4370 transitions. Word has length 61 [2020-09-25 12:18:42,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:42,889 INFO L479 AbstractCegarLoop]: Abstraction has 3635 states and 4370 transitions. [2020-09-25 12:18:42,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:42,889 INFO L276 IsEmpty]: Start isEmpty. Operand 3635 states and 4370 transitions. [2020-09-25 12:18:42,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 12:18:42,892 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:42,892 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] [2020-09-25 12:18:42,893 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 12:18:42,893 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:42,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:42,893 INFO L82 PathProgramCache]: Analyzing trace with hash 495374346, now seen corresponding path program 1 times [2020-09-25 12:18:42,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:42,894 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [679568670] [2020-09-25 12:18:42,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:42,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:42,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:42,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:42,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 12:18:42,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:42,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 12:18:42,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:42,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:42,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:42,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 12:18:42,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:18:42,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:42,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:42,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:42,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:42,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:42,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:42,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:42,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:18:42,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:42,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:42,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:42,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:42,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:42,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:42,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:42,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [679568670] [2020-09-25 12:18:42,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:42,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:42,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826477163] [2020-09-25 12:18:42,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:42,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:42,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:42,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:42,989 INFO L87 Difference]: Start difference. First operand 3635 states and 4370 transitions. Second operand 3 states. [2020-09-25 12:18:43,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:43,049 INFO L93 Difference]: Finished difference Result 4087 states and 4852 transitions. [2020-09-25 12:18:43,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:43,050 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-09-25 12:18:43,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:43,063 INFO L225 Difference]: With dead ends: 4087 [2020-09-25 12:18:43,063 INFO L226 Difference]: Without dead ends: 2917 [2020-09-25 12:18:43,071 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:43,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2917 states. [2020-09-25 12:18:43,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2917 to 2467. [2020-09-25 12:18:43,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2467 states. [2020-09-25 12:18:43,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 2914 transitions. [2020-09-25 12:18:43,134 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 2914 transitions. Word has length 61 [2020-09-25 12:18:43,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:43,135 INFO L479 AbstractCegarLoop]: Abstraction has 2467 states and 2914 transitions. [2020-09-25 12:18:43,135 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:43,135 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 2914 transitions. [2020-09-25 12:18:43,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 12:18:43,137 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:43,137 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] [2020-09-25 12:18:43,137 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 12:18:43,138 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:43,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:43,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1060451273, now seen corresponding path program 1 times [2020-09-25 12:18:43,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:43,139 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1481781362] [2020-09-25 12:18:43,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:43,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:43,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:43,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:43,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 12:18:43,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:43,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 12:18:43,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:43,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:43,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:43,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-09-25 12:18:43,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:18:43,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:43,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:43,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:43,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:43,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:43,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:43,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:43,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:18:43,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:43,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:43,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:43,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:43,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:43,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:43,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:43,232 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1481781362] [2020-09-25 12:18:43,232 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:43,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:43,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929195102] [2020-09-25 12:18:43,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:43,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:43,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:43,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:43,234 INFO L87 Difference]: Start difference. First operand 2467 states and 2914 transitions. Second operand 3 states. [2020-09-25 12:18:43,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:43,274 INFO L93 Difference]: Finished difference Result 2467 states and 2914 transitions. [2020-09-25 12:18:43,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:43,275 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2020-09-25 12:18:43,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:43,275 INFO L225 Difference]: With dead ends: 2467 [2020-09-25 12:18:43,275 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 12:18:43,280 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:43,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 12:18:43,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 12:18:43,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 12:18:43,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 12:18:43,281 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2020-09-25 12:18:43,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:43,282 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 12:18:43,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:43,282 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 12:18:43,282 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 12:18:43,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 12:18:43,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 12:18:43,320 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 12:18:43,320 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 12:18:43,320 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 12:18:43,320 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 12:18:43,320 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 12:18:43,320 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 12:18:43,321 INFO L268 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-09-25 12:18:43,321 INFO L268 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-09-25 12:18:43,321 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 4 121) no Hoare annotation was computed. [2020-09-25 12:18:43,321 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-25 12:18:43,321 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 12:18:43,321 INFO L268 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-09-25 12:18:43,321 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-25 12:18:43,322 INFO L268 CegarLoopResult]: For program point L86-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 12:18:43,322 INFO L271 CegarLoopResult]: At program point L111-1(lines 30 116) the Hoare annotation is: true [2020-09-25 12:18:43,322 INFO L268 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-09-25 12:18:43,322 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 12:18:43,322 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-09-25 12:18:43,322 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-09-25 12:18:43,322 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-09-25 12:18:43,322 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-09-25 12:18:43,323 INFO L268 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-09-25 12:18:43,323 INFO L268 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-09-25 12:18:43,323 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-25 12:18:43,323 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-09-25 12:18:43,323 INFO L268 CegarLoopResult]: For program point L21-2(line 21) no Hoare annotation was computed. [2020-09-25 12:18:43,323 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-09-25 12:18:43,323 INFO L264 CegarLoopResult]: At program point L112-1(lines 5 121) the Hoare annotation is: false [2020-09-25 12:18:43,324 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-25 12:18:43,324 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 4 121) no Hoare annotation was computed. [2020-09-25 12:18:43,324 INFO L268 CegarLoopResult]: For program point L71-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 12:18:43,324 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 119) no Hoare annotation was computed. [2020-09-25 12:18:43,324 INFO L268 CegarLoopResult]: For program point L96-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 12:18:43,324 INFO L268 CegarLoopResult]: For program point L63-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 12:18:43,325 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 4 121) the Hoare annotation is: true [2020-09-25 12:18:43,325 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-09-25 12:18:43,325 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 12:18:43,325 INFO L268 CegarLoopResult]: For program point L55-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 12:18:43,325 INFO L268 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-09-25 12:18:43,325 INFO L268 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-09-25 12:18:43,325 INFO L268 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-09-25 12:18:43,326 INFO L268 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-09-25 12:18:43,326 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-25 12:18:43,326 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-25 12:18:43,326 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-09-25 12:18:43,326 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-09-25 12:18:43,326 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-25 12:18:43,326 INFO L268 CegarLoopResult]: For program point L31-1(line 31) no Hoare annotation was computed. [2020-09-25 12:18:43,326 INFO L268 CegarLoopResult]: For program point L31-2(line 31) no Hoare annotation was computed. [2020-09-25 12:18:43,327 INFO L268 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-09-25 12:18:43,327 INFO L268 CegarLoopResult]: For program point L81-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 12:18:43,327 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 12:18:43,327 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-25 12:18:43,327 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-25 12:18:43,327 INFO L268 CegarLoopResult]: For program point L106-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 12:18:43,327 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-09-25 12:18:43,327 INFO L268 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-09-25 12:18:43,328 INFO L268 CegarLoopResult]: For program point L32(lines 32 34) no Hoare annotation was computed. [2020-09-25 12:18:43,328 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-25 12:18:43,328 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-09-25 12:18:43,328 INFO L268 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-09-25 12:18:43,328 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-09-25 12:18:43,328 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 12:18:43,328 INFO L268 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-09-25 12:18:43,329 INFO L268 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-09-25 12:18:43,329 INFO L268 CegarLoopResult]: For program point L91-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 12:18:43,329 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-25 12:18:43,329 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-09-25 12:18:43,329 INFO L268 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-09-25 12:18:43,329 INFO L268 CegarLoopResult]: For program point L75-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 12:18:43,330 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-09-25 12:18:43,330 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-09-25 12:18:43,330 INFO L268 CegarLoopResult]: For program point L9-2(line 9) no Hoare annotation was computed. [2020-09-25 12:18:43,330 INFO L268 CegarLoopResult]: For program point L67-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 12:18:43,330 INFO L268 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-09-25 12:18:43,330 INFO L268 CegarLoopResult]: For program point L59-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 12:18:43,330 INFO L271 CegarLoopResult]: At program point L117(lines 5 121) the Hoare annotation is: true [2020-09-25 12:18:43,330 INFO L268 CegarLoopResult]: For program point L51(lines 51 53) no Hoare annotation was computed. [2020-09-25 12:18:43,331 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 12:18:43,331 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-25 12:18:43,331 INFO L268 CegarLoopResult]: For program point L51-2(lines 30 116) no Hoare annotation was computed. [2020-09-25 12:18:43,331 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-09-25 12:18:43,331 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-09-25 12:18:43,331 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-09-25 12:18:43,331 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 12:18:43,332 INFO L268 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-09-25 12:18:43,332 INFO L268 CegarLoopResult]: For program point L101-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 12:18:43,332 INFO L268 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-09-25 12:18:43,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:18:43 BoogieIcfgContainer [2020-09-25 12:18:43,348 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 12:18:43,351 INFO L168 Benchmark]: Toolchain (without parser) took 4580.25 ms. Allocated memory was 138.9 MB in the beginning and 298.8 MB in the end (delta: 159.9 MB). Free memory was 100.7 MB in the beginning and 253.3 MB in the end (delta: -152.6 MB). Peak memory consumption was 7.3 MB. Max. memory is 7.1 GB. [2020-09-25 12:18:43,352 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 118.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 12:18:43,353 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.08 ms. Allocated memory is still 138.9 MB. Free memory was 100.1 MB in the beginning and 89.8 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-09-25 12:18:43,354 INFO L168 Benchmark]: Boogie Preprocessor took 119.12 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 89.8 MB in the beginning and 181.0 MB in the end (delta: -91.2 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2020-09-25 12:18:43,354 INFO L168 Benchmark]: RCFGBuilder took 443.00 ms. Allocated memory is still 202.4 MB. Free memory was 181.0 MB in the beginning and 160.0 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. [2020-09-25 12:18:43,355 INFO L168 Benchmark]: TraceAbstraction took 3656.95 ms. Allocated memory was 202.4 MB in the beginning and 298.8 MB in the end (delta: 96.5 MB). Free memory was 160.0 MB in the beginning and 253.3 MB in the end (delta: -93.3 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2020-09-25 12:18:43,359 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 118.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 351.08 ms. Allocated memory is still 138.9 MB. Free memory was 100.1 MB in the beginning and 89.8 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.12 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 89.8 MB in the beginning and 181.0 MB in the end (delta: -91.2 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 443.00 ms. Allocated memory is still 202.4 MB. Free memory was 181.0 MB in the beginning and 160.0 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3656.95 ms. Allocated memory was 202.4 MB in the beginning and 298.8 MB in the end (delta: 96.5 MB). Free memory was 160.0 MB in the beginning and 253.3 MB in the end (delta: -93.3 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 119]: 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: 30]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 88 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.5s, OverallIterations: 14, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1813 SDtfs, 648 SDslu, 1281 SDs, 0 SdLazy, 69 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3635occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 14 MinimizatonAttempts, 1022 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 137 NumberOfFragments, 7 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 819 NumberOfCodeBlocks, 819 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 805 ConstructedInterpolants, 0 QuantifiedInterpolants, 58429 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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...