/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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/psyco/psyco_accelerometer_1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 01:57:37,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 01:57:37,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 01:57:37,815 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 01:57:37,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 01:57:37,823 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 01:57:37,825 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 01:57:37,829 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 01:57:37,831 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 01:57:37,835 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 01:57:37,836 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 01:57:37,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 01:57:37,837 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 01:57:37,839 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 01:57:37,842 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 01:57:37,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 01:57:37,845 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 01:57:37,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 01:57:37,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 01:57:37,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 01:57:37,857 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 01:57:37,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 01:57:37,859 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 01:57:37,859 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 01:57:37,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 01:57:37,872 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 01:57:37,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 01:57:37,877 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 01:57:37,877 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 01:57:37,881 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 01:57:37,881 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 01:57:37,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 01:57:37,883 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 01:57:37,884 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 01:57:37,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 01:57:37,885 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 01:57:37,885 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 01:57:37,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 01:57:37,886 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 01:57:37,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 01:57:37,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 01:57:37,892 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 01:57:37,916 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 01:57:37,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 01:57:37,918 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 01:57:37,918 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 01:57:37,918 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 01:57:37,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 01:57:37,919 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 01:57:37,919 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 01:57:37,919 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 01:57:37,919 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 01:57:37,920 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 01:57:37,920 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 01:57:37,920 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 01:57:37,920 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 01:57:37,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 01:57:37,920 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 01:57:37,921 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 01:57:37,921 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 01:57:37,921 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 01:57:37,921 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 01:57:37,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 01:57:37,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 01:57:37,922 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 01:57:37,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 01:57:37,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 01:57:37,922 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 01:57:37,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 01:57:37,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 01:57:37,923 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 01:57:37,923 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 -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 01:57:38,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 01:57:38,228 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 01:57:38,234 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 01:57:38,236 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 01:57:38,237 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 01:57:38,238 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/psyco/psyco_accelerometer_1.c [2020-10-15 01:57:38,298 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b41e1bd8/56881f0221ab4df28f9b11abc96d4704/FLAG480c3da67 [2020-10-15 01:57:39,069 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 01:57:39,070 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/psyco/psyco_accelerometer_1.c [2020-10-15 01:57:39,096 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b41e1bd8/56881f0221ab4df28f9b11abc96d4704/FLAG480c3da67 [2020-10-15 01:57:39,149 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b41e1bd8/56881f0221ab4df28f9b11abc96d4704 [2020-10-15 01:57:39,160 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 01:57:39,162 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 01:57:39,163 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 01:57:39,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 01:57:39,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 01:57:39,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:57:39" (1/1) ... [2020-10-15 01:57:39,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@244669af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:57:39, skipping insertion in model container [2020-10-15 01:57:39,172 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:57:39" (1/1) ... [2020-10-15 01:57:39,180 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 01:57:39,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 01:57:40,105 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 01:57:40,112 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 01:57:40,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 01:57:40,457 INFO L208 MainTranslator]: Completed translation [2020-10-15 01:57:40,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:57:40 WrapperNode [2020-10-15 01:57:40,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 01:57:40,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 01:57:40,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 01:57:40,460 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 01:57:40,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:57:40" (1/1) ... [2020-10-15 01:57:40,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:57:40" (1/1) ... [2020-10-15 01:57:40,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:57:40" (1/1) ... [2020-10-15 01:57:40,534 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:57:40" (1/1) ... [2020-10-15 01:57:40,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:57:40" (1/1) ... [2020-10-15 01:57:40,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:57:40" (1/1) ... [2020-10-15 01:57:40,665 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:57:40" (1/1) ... [2020-10-15 01:57:40,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 01:57:40,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 01:57:40,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 01:57:40,695 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 01:57:40,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:57:40" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 01:57:40,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 01:57:40,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 01:57:40,773 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 01:57:40,773 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-15 01:57:40,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 01:57:40,774 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 01:57:40,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 01:57:40,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 01:57:42,466 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 01:57:42,466 INFO L295 CfgBuilder]: Removed 21 assume(true) statements. [2020-10-15 01:57:42,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:57:42 BoogieIcfgContainer [2020-10-15 01:57:42,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 01:57:42,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 01:57:42,474 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 01:57:42,478 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 01:57:42,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:57:39" (1/3) ... [2020-10-15 01:57:42,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b42948 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:57:42, skipping insertion in model container [2020-10-15 01:57:42,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:57:40" (2/3) ... [2020-10-15 01:57:42,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b42948 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:57:42, skipping insertion in model container [2020-10-15 01:57:42,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:57:42" (3/3) ... [2020-10-15 01:57:42,482 INFO L109 eAbstractionObserver]: Analyzing ICFG psyco_accelerometer_1.c [2020-10-15 01:57:42,492 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 01:57:42,501 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 01:57:42,516 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 01:57:42,544 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 01:57:42,544 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 01:57:42,544 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 01:57:42,544 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 01:57:42,544 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 01:57:42,545 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 01:57:42,545 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 01:57:42,545 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 01:57:42,571 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states. [2020-10-15 01:57:42,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 01:57:42,578 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:57:42,579 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 01:57:42,580 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:57:42,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:57:42,587 INFO L82 PathProgramCache]: Analyzing trace with hash -358841446, now seen corresponding path program 1 times [2020-10-15 01:57:42,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:57:42,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [920025864] [2020-10-15 01:57:42,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:57:42,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:57:42,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:57:42,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:57:42,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 01:57:42,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:57:42,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-15 01:57:42,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:57:42,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:57:42,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:57:42,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-15 01:57:42,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:57:42,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-15 01:57:42,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:57:42,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:57:42,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:57:42,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:57:42,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:57:42,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:57:42,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 01:57:42,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:57:42,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:57:42,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:57:42,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:57:42,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:57:42,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:57:42,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 01:57:42,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [920025864] [2020-10-15 01:57:42,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:57:42,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 01:57:42,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137884740] [2020-10-15 01:57:42,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 01:57:42,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:57:42,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 01:57:42,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 01:57:42,996 INFO L87 Difference]: Start difference. First operand 242 states. Second operand 3 states. [2020-10-15 01:57:43,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:57:43,076 INFO L93 Difference]: Finished difference Result 469 states and 916 transitions. [2020-10-15 01:57:43,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 01:57:43,078 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-15 01:57:43,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:57:43,093 INFO L225 Difference]: With dead ends: 469 [2020-10-15 01:57:43,094 INFO L226 Difference]: Without dead ends: 228 [2020-10-15 01:57:43,099 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 01:57:43,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-10-15 01:57:43,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2020-10-15 01:57:43,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-10-15 01:57:43,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 397 transitions. [2020-10-15 01:57:43,164 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 397 transitions. Word has length 13 [2020-10-15 01:57:43,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:57:43,164 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 397 transitions. [2020-10-15 01:57:43,165 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 01:57:43,165 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 397 transitions. [2020-10-15 01:57:43,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 01:57:43,166 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:57:43,166 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 01:57:43,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 01:57:43,167 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:57:43,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:57:43,167 INFO L82 PathProgramCache]: Analyzing trace with hash -2001683715, now seen corresponding path program 1 times [2020-10-15 01:57:43,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:57:43,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [236863912] [2020-10-15 01:57:43,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:57:43,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:57:43,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:57:43,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:57:43,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:57:43,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:57:43,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-15 01:57:43,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 01:57:43,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-15 01:57:43,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:57:43,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:57:43,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:57:43,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 01:57:43,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 01:57:43,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:57:43,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:57:43,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:57:43,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:57:43,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:57:43,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:57:43,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:57:43,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 01:57:43,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:57:43,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:57:43,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:57:43,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:57:43,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:57:43,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:57:43,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 01:57:43,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [236863912] [2020-10-15 01:57:43,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:57:43,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 01:57:43,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261224710] [2020-10-15 01:57:43,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 01:57:43,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:57:43,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 01:57:43,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 01:57:43,540 INFO L87 Difference]: Start difference. First operand 228 states and 397 transitions. Second operand 4 states. [2020-10-15 01:57:44,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:57:44,726 INFO L93 Difference]: Finished difference Result 666 states and 1173 transitions. [2020-10-15 01:57:44,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 01:57:44,727 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-15 01:57:44,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:57:44,731 INFO L225 Difference]: With dead ends: 666 [2020-10-15 01:57:44,731 INFO L226 Difference]: Without dead ends: 436 [2020-10-15 01:57:44,734 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 01:57:44,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2020-10-15 01:57:44,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 422. [2020-10-15 01:57:44,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2020-10-15 01:57:44,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 753 transitions. [2020-10-15 01:57:44,764 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 753 transitions. Word has length 14 [2020-10-15 01:57:44,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:57:44,764 INFO L479 AbstractCegarLoop]: Abstraction has 422 states and 753 transitions. [2020-10-15 01:57:44,764 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 01:57:44,765 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 753 transitions. [2020-10-15 01:57:44,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 01:57:44,766 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:57:44,766 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 01:57:44,766 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 01:57:44,766 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:57:44,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:57:44,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1911236393, now seen corresponding path program 1 times [2020-10-15 01:57:44,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:57:44,767 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1938504240] [2020-10-15 01:57:44,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:57:44,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:57:44,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:57:44,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:57:44,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:57:44,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-15 01:57:44,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 01:57:44,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-15 01:57:44,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:57:44,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:57:44,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:57:44,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 01:57:44,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:57:44,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:57:44,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:57:44,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:57:44,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:57:44,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:57:44,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:57:44,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:57:44,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:57:44,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:57:44,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:57:44,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:57:44,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:57:44,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:57:44,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:57:44,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 01:57:44,933 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1938504240] [2020-10-15 01:57:44,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:57:44,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 01:57:44,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404336084] [2020-10-15 01:57:44,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 01:57:44,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:57:44,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 01:57:44,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 01:57:44,935 INFO L87 Difference]: Start difference. First operand 422 states and 753 transitions. Second operand 4 states. [2020-10-15 01:57:45,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:57:45,847 INFO L93 Difference]: Finished difference Result 843 states and 1507 transitions. [2020-10-15 01:57:45,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 01:57:45,848 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-15 01:57:45,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:57:45,855 INFO L225 Difference]: With dead ends: 843 [2020-10-15 01:57:45,855 INFO L226 Difference]: Without dead ends: 427 [2020-10-15 01:57:45,858 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 01:57:45,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-10-15 01:57:45,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 424. [2020-10-15 01:57:45,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424 states. [2020-10-15 01:57:45,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 754 transitions. [2020-10-15 01:57:45,905 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 754 transitions. Word has length 15 [2020-10-15 01:57:45,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:57:45,905 INFO L479 AbstractCegarLoop]: Abstraction has 424 states and 754 transitions. [2020-10-15 01:57:45,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 01:57:45,905 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 754 transitions. [2020-10-15 01:57:45,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-15 01:57:45,906 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:57:45,906 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 01:57:45,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 01:57:45,907 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:57:45,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:57:45,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1773715145, now seen corresponding path program 1 times [2020-10-15 01:57:45,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:57:45,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1870526441] [2020-10-15 01:57:45,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:57:45,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:57:45,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:57:46,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:57:46,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 01:57:46,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:57:46,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-15 01:57:46,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:57:46,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:57:46,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:57:46,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-15 01:57:46,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:57:46,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:57:46,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:57:46,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:57:46,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:57:46,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:57:46,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:57:46,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:57:46,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 01:57:46,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:57:46,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:57:46,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:57:46,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:57:46,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:57:46,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:57:46,124 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 01:57:46,125 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1870526441] [2020-10-15 01:57:46,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:57:46,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 01:57:46,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206055312] [2020-10-15 01:57:46,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 01:57:46,126 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:57:46,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 01:57:46,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 01:57:46,128 INFO L87 Difference]: Start difference. First operand 424 states and 754 transitions. Second operand 4 states. [2020-10-15 01:57:46,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:57:46,356 INFO L93 Difference]: Finished difference Result 821 states and 1473 transitions. [2020-10-15 01:57:46,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 01:57:46,358 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-15 01:57:46,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:57:46,361 INFO L225 Difference]: With dead ends: 821 [2020-10-15 01:57:46,361 INFO L226 Difference]: Without dead ends: 404 [2020-10-15 01:57:46,363 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 01:57:46,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2020-10-15 01:57:46,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2020-10-15 01:57:46,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 404 states. [2020-10-15 01:57:46,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 722 transitions. [2020-10-15 01:57:46,377 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 722 transitions. Word has length 20 [2020-10-15 01:57:46,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:57:46,377 INFO L479 AbstractCegarLoop]: Abstraction has 404 states and 722 transitions. [2020-10-15 01:57:46,377 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 01:57:46,377 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 722 transitions. [2020-10-15 01:57:46,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 01:57:46,379 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:57:46,379 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 01:57:46,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 01:57:46,379 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:57:46,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:57:46,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1582631867, now seen corresponding path program 1 times [2020-10-15 01:57:46,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:57:46,380 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1112105993] [2020-10-15 01:57:46,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:57:46,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:57:46,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:57:46,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:57:46,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:57:46,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-15 01:57:46,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 01:57:46,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-15 01:57:46,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:57:46,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:57:46,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:57:46,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-15 01:57:46,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 01:57:46,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:57:46,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:57:46,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:57:46,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:57:46,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:57:46,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:57:46,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:57:46,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:57:46,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:57:46,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:57:46,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:57:46,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:57:46,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:57:46,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:57:46,517 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 01:57:46,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1112105993] [2020-10-15 01:57:46,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:57:46,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 01:57:46,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493354486] [2020-10-15 01:57:46,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 01:57:46,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:57:46,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 01:57:46,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 01:57:46,519 INFO L87 Difference]: Start difference. First operand 404 states and 722 transitions. Second operand 4 states. [2020-10-15 01:57:47,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:57:47,291 INFO L93 Difference]: Finished difference Result 646 states and 1144 transitions. [2020-10-15 01:57:47,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 01:57:47,291 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-10-15 01:57:47,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:57:47,296 INFO L225 Difference]: With dead ends: 646 [2020-10-15 01:57:47,296 INFO L226 Difference]: Without dead ends: 254 [2020-10-15 01:57:47,297 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 01:57:47,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-10-15 01:57:47,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 252. [2020-10-15 01:57:47,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-10-15 01:57:47,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 430 transitions. [2020-10-15 01:57:47,307 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 430 transitions. Word has length 23 [2020-10-15 01:57:47,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:57:47,308 INFO L479 AbstractCegarLoop]: Abstraction has 252 states and 430 transitions. [2020-10-15 01:57:47,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 01:57:47,308 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 430 transitions. [2020-10-15 01:57:47,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 01:57:47,309 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:57:47,309 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 01:57:47,309 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 01:57:47,310 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:57:47,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:57:47,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1006681014, now seen corresponding path program 1 times [2020-10-15 01:57:47,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:57:47,311 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1162049941] [2020-10-15 01:57:47,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:57:47,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:57:47,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:57:47,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:57:47,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-15 01:57:47,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:57:47,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-15 01:57:47,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:57:47,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:57:47,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:57:47,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-15 01:57:47,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 01:57:47,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:57:47,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:57:47,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:57:47,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:57:47,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:57:47,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:57:47,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:57:47,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:57:47,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:57:47,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:57:47,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:57:47,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:57:47,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:57:47,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:57:47,456 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 01:57:47,456 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1162049941] [2020-10-15 01:57:47,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:57:47,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 01:57:47,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358272532] [2020-10-15 01:57:47,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 01:57:47,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:57:47,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 01:57:47,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 01:57:47,459 INFO L87 Difference]: Start difference. First operand 252 states and 430 transitions. Second operand 4 states. [2020-10-15 01:57:47,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:57:47,679 INFO L93 Difference]: Finished difference Result 254 states and 431 transitions. [2020-10-15 01:57:47,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 01:57:47,685 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-10-15 01:57:47,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:57:47,689 INFO L225 Difference]: With dead ends: 254 [2020-10-15 01:57:47,689 INFO L226 Difference]: Without dead ends: 252 [2020-10-15 01:57:47,690 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 01:57:47,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-10-15 01:57:47,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2020-10-15 01:57:47,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-10-15 01:57:47,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 422 transitions. [2020-10-15 01:57:47,744 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 422 transitions. Word has length 23 [2020-10-15 01:57:47,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:57:47,745 INFO L479 AbstractCegarLoop]: Abstraction has 252 states and 422 transitions. [2020-10-15 01:57:47,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 01:57:47,745 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 422 transitions. [2020-10-15 01:57:47,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-15 01:57:47,746 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:57:47,746 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 01:57:47,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 01:57:47,747 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:57:47,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:57:47,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1124944987, now seen corresponding path program 1 times [2020-10-15 01:57:47,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:57:47,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1381196552] [2020-10-15 01:57:47,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:57:47,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:57:47,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:57:47,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:57:47,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 01:57:47,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:57:47,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-15 01:57:47,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:57:47,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:57:47,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:57:47,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-15 01:57:47,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 01:57:47,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:57:47,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:57:47,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:57:47,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:57:47,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:57:47,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:57:47,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:57:47,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:57:47,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:57:47,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:57:47,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:57:47,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:57:47,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:57:47,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:57:47,896 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 01:57:47,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1381196552] [2020-10-15 01:57:47,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:57:47,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 01:57:47,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063624747] [2020-10-15 01:57:47,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 01:57:47,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:57:47,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 01:57:47,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 01:57:47,898 INFO L87 Difference]: Start difference. First operand 252 states and 422 transitions. Second operand 4 states. [2020-10-15 01:57:48,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:57:48,920 INFO L93 Difference]: Finished difference Result 668 states and 1128 transitions. [2020-10-15 01:57:48,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 01:57:48,922 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-10-15 01:57:48,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:57:48,927 INFO L225 Difference]: With dead ends: 668 [2020-10-15 01:57:48,928 INFO L226 Difference]: Without dead ends: 424 [2020-10-15 01:57:48,931 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 01:57:48,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-10-15 01:57:48,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 411. [2020-10-15 01:57:48,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2020-10-15 01:57:48,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 626 transitions. [2020-10-15 01:57:48,948 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 626 transitions. Word has length 26 [2020-10-15 01:57:48,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:57:48,948 INFO L479 AbstractCegarLoop]: Abstraction has 411 states and 626 transitions. [2020-10-15 01:57:48,949 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 01:57:48,949 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 626 transitions. [2020-10-15 01:57:48,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-15 01:57:48,950 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:57:48,951 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 01:57:48,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 01:57:48,951 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:57:48,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:57:48,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1803598039, now seen corresponding path program 1 times [2020-10-15 01:57:48,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:57:48,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [393713975] [2020-10-15 01:57:48,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:57:48,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:57:48,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:57:49,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:57:49,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-15 01:57:49,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:57:49,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-15 01:57:49,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:57:49,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:57:49,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:57:49,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-15 01:57:49,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:57:49,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:57:49,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:57:49,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:57:49,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:57:49,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:57:49,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:57:49,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:57:49,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:57:49,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:57:49,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:57:49,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:57:49,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:57:49,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:57:49,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:57:49,139 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 01:57:49,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [393713975] [2020-10-15 01:57:49,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:57:49,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 01:57:49,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164527914] [2020-10-15 01:57:49,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 01:57:49,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:57:49,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 01:57:49,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 01:57:49,142 INFO L87 Difference]: Start difference. First operand 411 states and 626 transitions. Second operand 4 states. [2020-10-15 01:57:49,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:57:49,309 INFO L93 Difference]: Finished difference Result 745 states and 1145 transitions. [2020-10-15 01:57:49,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 01:57:49,309 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2020-10-15 01:57:49,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:57:49,314 INFO L225 Difference]: With dead ends: 745 [2020-10-15 01:57:49,314 INFO L226 Difference]: Without dead ends: 346 [2020-10-15 01:57:49,316 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 01:57:49,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-15 01:57:49,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-10-15 01:57:49,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-15 01:57:49,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 530 transitions. [2020-10-15 01:57:49,335 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 530 transitions. Word has length 36 [2020-10-15 01:57:49,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:57:49,336 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 530 transitions. [2020-10-15 01:57:49,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 01:57:49,337 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 530 transitions. [2020-10-15 01:57:49,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-15 01:57:49,348 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:57:49,348 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 01:57:49,348 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 01:57:49,348 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:57:49,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:57:49,349 INFO L82 PathProgramCache]: Analyzing trace with hash -1771198676, now seen corresponding path program 1 times [2020-10-15 01:57:49,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:57:49,350 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [186095139] [2020-10-15 01:57:49,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:57:49,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:57:49,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:57:49,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:57:49,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-15 01:57:49,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:57:49,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-15 01:57:49,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:57:49,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:57:49,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:57:49,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-15 01:57:49,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 01:57:49,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:57:49,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:57:49,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:57:49,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:57:49,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:57:49,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:57:49,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:57:49,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 01:57:49,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:57:49,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:57:49,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:57:49,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:57:49,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:57:49,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:57:49,574 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 01:57:49,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [186095139] [2020-10-15 01:57:49,581 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:57:49,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 01:57:49,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970869590] [2020-10-15 01:57:49,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 01:57:49,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:57:49,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 01:57:49,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 01:57:49,582 INFO L87 Difference]: Start difference. First operand 346 states and 530 transitions. Second operand 4 states. [2020-10-15 01:57:49,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:57:49,743 INFO L93 Difference]: Finished difference Result 674 states and 1041 transitions. [2020-10-15 01:57:49,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 01:57:49,744 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2020-10-15 01:57:49,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:57:49,746 INFO L225 Difference]: With dead ends: 674 [2020-10-15 01:57:49,746 INFO L226 Difference]: Without dead ends: 340 [2020-10-15 01:57:49,748 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 01:57:49,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-10-15 01:57:49,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2020-10-15 01:57:49,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2020-10-15 01:57:49,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 510 transitions. [2020-10-15 01:57:49,760 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 510 transitions. Word has length 37 [2020-10-15 01:57:49,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:57:49,761 INFO L479 AbstractCegarLoop]: Abstraction has 340 states and 510 transitions. [2020-10-15 01:57:49,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 01:57:49,761 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 510 transitions. [2020-10-15 01:57:49,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-15 01:57:49,764 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:57:49,764 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 01:57:49,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 01:57:49,765 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:57:49,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:57:49,766 INFO L82 PathProgramCache]: Analyzing trace with hash -2025838196, now seen corresponding path program 1 times [2020-10-15 01:57:49,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:57:49,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [903096351] [2020-10-15 01:57:49,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:57:49,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:57:49,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:57:49,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:57:49,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-15 01:57:49,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:57:49,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-15 01:57:49,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:57:49,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:57:49,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:57:49,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-15 01:57:49,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 01:57:49,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 01:57:49,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:57:49,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:57:49,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:57:50,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:57:50,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:57:50,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:57:50,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 01:57:50,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:57:50,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:57:50,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:57:50,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:57:50,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:57:50,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:57:50,012 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 01:57:50,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [903096351] [2020-10-15 01:57:50,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:57:50,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 01:57:50,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274238429] [2020-10-15 01:57:50,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 01:57:50,014 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:57:50,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 01:57:50,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 01:57:50,015 INFO L87 Difference]: Start difference. First operand 340 states and 510 transitions. Second operand 4 states. [2020-10-15 01:57:50,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:57:50,852 INFO L93 Difference]: Finished difference Result 383 states and 551 transitions. [2020-10-15 01:57:50,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 01:57:50,853 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-10-15 01:57:50,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:57:50,857 INFO L225 Difference]: With dead ends: 383 [2020-10-15 01:57:50,857 INFO L226 Difference]: Without dead ends: 346 [2020-10-15 01:57:50,858 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 01:57:50,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-15 01:57:50,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 340. [2020-10-15 01:57:50,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2020-10-15 01:57:50,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 474 transitions. [2020-10-15 01:57:50,918 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 474 transitions. Word has length 41 [2020-10-15 01:57:50,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:57:50,919 INFO L479 AbstractCegarLoop]: Abstraction has 340 states and 474 transitions. [2020-10-15 01:57:50,919 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 01:57:50,919 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 474 transitions. [2020-10-15 01:57:50,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-15 01:57:50,921 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:57:50,921 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 01:57:50,922 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 01:57:50,922 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:57:50,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:57:50,922 INFO L82 PathProgramCache]: Analyzing trace with hash -197451388, now seen corresponding path program 1 times [2020-10-15 01:57:50,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:57:50,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [708505956] [2020-10-15 01:57:50,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:57:50,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:57:50,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:57:50,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:57:51,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:57:51,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 01:57:51,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 01:57:51,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-10-15 01:57:51,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:57:51,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:57:51,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:57:51,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-15 01:57:51,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 01:57:51,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:57:51,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:57:51,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:57:51,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:57:51,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:57:51,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:57:51,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:57:51,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 01:57:51,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:57:51,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:57:51,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:57:51,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:57:51,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:57:51,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:57:51,232 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 01:57:51,232 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [708505956] [2020-10-15 01:57:51,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:57:51,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 01:57:51,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474944734] [2020-10-15 01:57:51,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 01:57:51,236 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:57:51,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 01:57:51,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 01:57:51,237 INFO L87 Difference]: Start difference. First operand 340 states and 474 transitions. Second operand 4 states. [2020-10-15 01:57:51,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:57:51,391 INFO L93 Difference]: Finished difference Result 649 states and 906 transitions. [2020-10-15 01:57:51,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 01:57:51,392 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2020-10-15 01:57:51,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:57:51,395 INFO L225 Difference]: With dead ends: 649 [2020-10-15 01:57:51,396 INFO L226 Difference]: Without dead ends: 321 [2020-10-15 01:57:51,397 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 01:57:51,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-10-15 01:57:51,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2020-10-15 01:57:51,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-10-15 01:57:51,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 443 transitions. [2020-10-15 01:57:51,407 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 443 transitions. Word has length 42 [2020-10-15 01:57:51,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:57:51,408 INFO L479 AbstractCegarLoop]: Abstraction has 321 states and 443 transitions. [2020-10-15 01:57:51,408 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 01:57:51,408 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 443 transitions. [2020-10-15 01:57:51,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-15 01:57:51,409 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:57:51,410 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 01:57:51,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 01:57:51,410 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:57:51,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:57:51,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1099613084, now seen corresponding path program 1 times [2020-10-15 01:57:51,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:57:51,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [520435688] [2020-10-15 01:57:51,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:57:51,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:57:51,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:57:51,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:57:51,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 01:57:51,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:57:51,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-15 01:57:51,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:57:51,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:57:51,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:57:51,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-15 01:57:51,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 01:57:51,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:57:51,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:57:51,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:57:51,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:57:51,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:57:51,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:57:51,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:57:51,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:57:51,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:57:51,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:57:51,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:57:51,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:57:51,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:57:51,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:57:51,540 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 01:57:51,541 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [520435688] [2020-10-15 01:57:51,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:57:51,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 01:57:51,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477990093] [2020-10-15 01:57:51,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 01:57:51,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:57:51,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 01:57:51,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 01:57:51,543 INFO L87 Difference]: Start difference. First operand 321 states and 443 transitions. Second operand 4 states. [2020-10-15 01:57:51,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:57:51,970 INFO L93 Difference]: Finished difference Result 490 states and 686 transitions. [2020-10-15 01:57:51,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 01:57:51,971 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2020-10-15 01:57:51,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:57:51,971 INFO L225 Difference]: With dead ends: 490 [2020-10-15 01:57:51,971 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 01:57:51,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 01:57:51,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 01:57:51,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 01:57:51,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 01:57:51,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 01:57:51,974 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2020-10-15 01:57:51,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:57:51,974 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 01:57:51,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 01:57:51,975 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 01:57:51,975 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 01:57:51,975 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 01:57:51,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-15 01:57:52,312 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 25 [2020-10-15 01:57:52,550 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 25 [2020-10-15 01:57:52,555 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-15 01:57:52,555 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~m_connect_2~0 |old(~m_connect_2~0)|) (= ~m_getValueX~0 |old(~m_getValueX~0)|) (= ~m_update~0 |old(~m_update~0)|) (= ~m_connect_1~0 |old(~m_connect_1~0)|) (= ~m_dataReceived~0 |old(~m_dataReceived~0)|) (= ~m_getValueY~0 |old(~m_getValueY~0)|) (= ~m_init~0 |old(~m_init~0)|) (= ~m_Accelerometer~0 |old(~m_Accelerometer~0)|) (= ~m_disconnect~0 |old(~m_disconnect~0)|)) [2020-10-15 01:57:52,556 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-15 01:57:52,556 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-15 01:57:52,556 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-15 01:57:52,556 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-15 01:57:52,556 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-15 01:57:52,556 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 16 1255) no Hoare annotation was computed. [2020-10-15 01:57:52,556 INFO L268 CegarLoopResult]: For program point L895(lines 895 897) no Hoare annotation was computed. [2020-10-15 01:57:52,557 INFO L268 CegarLoopResult]: For program point L763(lines 763 774) no Hoare annotation was computed. [2020-10-15 01:57:52,557 INFO L268 CegarLoopResult]: For program point L697(lines 697 712) no Hoare annotation was computed. [2020-10-15 01:57:52,557 INFO L268 CegarLoopResult]: For program point L367(lines 367 369) no Hoare annotation was computed. [2020-10-15 01:57:52,557 INFO L268 CegarLoopResult]: For program point L235(lines 235 237) no Hoare annotation was computed. [2020-10-15 01:57:52,557 INFO L268 CegarLoopResult]: For program point L103(lines 103 105) no Hoare annotation was computed. [2020-10-15 01:57:52,557 INFO L268 CegarLoopResult]: For program point L831(lines 831 833) no Hoare annotation was computed. [2020-10-15 01:57:52,557 INFO L268 CegarLoopResult]: For program point L699(lines 699 710) no Hoare annotation was computed. [2020-10-15 01:57:52,557 INFO L268 CegarLoopResult]: For program point L633(lines 633 648) no Hoare annotation was computed. [2020-10-15 01:57:52,558 INFO L268 CegarLoopResult]: For program point L171(lines 171 173) no Hoare annotation was computed. [2020-10-15 01:57:52,558 INFO L268 CegarLoopResult]: For program point L1229(lines 1229 1244) no Hoare annotation was computed. [2020-10-15 01:57:52,558 INFO L268 CegarLoopResult]: For program point L767(lines 767 769) no Hoare annotation was computed. [2020-10-15 01:57:52,558 INFO L268 CegarLoopResult]: For program point L635(lines 635 646) no Hoare annotation was computed. [2020-10-15 01:57:52,558 INFO L268 CegarLoopResult]: For program point L569(lines 569 584) no Hoare annotation was computed. [2020-10-15 01:57:52,558 INFO L268 CegarLoopResult]: For program point L1231(lines 1231 1242) no Hoare annotation was computed. [2020-10-15 01:57:52,558 INFO L268 CegarLoopResult]: For program point L1165(lines 1165 1180) no Hoare annotation was computed. [2020-10-15 01:57:52,559 INFO L268 CegarLoopResult]: For program point L1033(lines 1033 1048) no Hoare annotation was computed. [2020-10-15 01:57:52,559 INFO L268 CegarLoopResult]: For program point L703(lines 703 705) no Hoare annotation was computed. [2020-10-15 01:57:52,559 INFO L268 CegarLoopResult]: For program point L571(lines 571 582) no Hoare annotation was computed. [2020-10-15 01:57:52,559 INFO L268 CegarLoopResult]: For program point L505(lines 505 520) no Hoare annotation was computed. [2020-10-15 01:57:52,559 INFO L268 CegarLoopResult]: For program point L1167(lines 1167 1178) no Hoare annotation was computed. [2020-10-15 01:57:52,559 INFO L268 CegarLoopResult]: For program point L1101(lines 1101 1116) no Hoare annotation was computed. [2020-10-15 01:57:52,559 INFO L268 CegarLoopResult]: For program point L44(lines 44 63) no Hoare annotation was computed. [2020-10-15 01:57:52,560 INFO L268 CegarLoopResult]: For program point L1035(lines 1035 1046) no Hoare annotation was computed. [2020-10-15 01:57:52,560 INFO L268 CegarLoopResult]: For program point L969(lines 969 984) no Hoare annotation was computed. [2020-10-15 01:57:52,560 INFO L268 CegarLoopResult]: For program point L639(lines 639 641) no Hoare annotation was computed. [2020-10-15 01:57:52,560 INFO L268 CegarLoopResult]: For program point L507(lines 507 518) no Hoare annotation was computed. [2020-10-15 01:57:52,560 INFO L268 CegarLoopResult]: For program point L441(lines 441 456) no Hoare annotation was computed. [2020-10-15 01:57:52,560 INFO L268 CegarLoopResult]: For program point L309(lines 309 324) no Hoare annotation was computed. [2020-10-15 01:57:52,560 INFO L268 CegarLoopResult]: For program point L45(lines 45 60) no Hoare annotation was computed. [2020-10-15 01:57:52,560 INFO L268 CegarLoopResult]: For program point L1235(lines 1235 1237) no Hoare annotation was computed. [2020-10-15 01:57:52,561 INFO L268 CegarLoopResult]: For program point L1103(lines 1103 1114) no Hoare annotation was computed. [2020-10-15 01:57:52,561 INFO L268 CegarLoopResult]: For program point L971(lines 971 982) no Hoare annotation was computed. [2020-10-15 01:57:52,561 INFO L268 CegarLoopResult]: For program point L905(lines 905 920) no Hoare annotation was computed. [2020-10-15 01:57:52,561 INFO L268 CegarLoopResult]: For program point L575(lines 575 577) no Hoare annotation was computed. [2020-10-15 01:57:52,561 INFO L268 CegarLoopResult]: For program point L443(lines 443 454) no Hoare annotation was computed. [2020-10-15 01:57:52,561 INFO L268 CegarLoopResult]: For program point L377(lines 377 392) no Hoare annotation was computed. [2020-10-15 01:57:52,561 INFO L268 CegarLoopResult]: For program point L311(lines 311 322) no Hoare annotation was computed. [2020-10-15 01:57:52,561 INFO L268 CegarLoopResult]: For program point L245(lines 245 260) no Hoare annotation was computed. [2020-10-15 01:57:52,562 INFO L264 CegarLoopResult]: At program point L1236(lines 16 1255) the Hoare annotation is: false [2020-10-15 01:57:52,562 INFO L268 CegarLoopResult]: For program point L113(lines 113 128) no Hoare annotation was computed. [2020-10-15 01:57:52,562 INFO L268 CegarLoopResult]: For program point L47(lines 47 58) no Hoare annotation was computed. [2020-10-15 01:57:52,562 INFO L268 CegarLoopResult]: For program point L1171(lines 1171 1173) no Hoare annotation was computed. [2020-10-15 01:57:52,562 INFO L268 CegarLoopResult]: For program point L1039(lines 1039 1041) no Hoare annotation was computed. [2020-10-15 01:57:52,562 INFO L268 CegarLoopResult]: For program point L907(lines 907 918) no Hoare annotation was computed. [2020-10-15 01:57:52,562 INFO L268 CegarLoopResult]: For program point L841(lines 841 856) no Hoare annotation was computed. [2020-10-15 01:57:52,562 INFO L268 CegarLoopResult]: For program point L511(lines 511 513) no Hoare annotation was computed. [2020-10-15 01:57:52,563 INFO L268 CegarLoopResult]: For program point L379(lines 379 390) no Hoare annotation was computed. [2020-10-15 01:57:52,563 INFO L268 CegarLoopResult]: For program point L247(lines 247 258) no Hoare annotation was computed. [2020-10-15 01:57:52,563 INFO L268 CegarLoopResult]: For program point L181(lines 181 196) no Hoare annotation was computed. [2020-10-15 01:57:52,563 INFO L268 CegarLoopResult]: For program point L115(lines 115 126) no Hoare annotation was computed. [2020-10-15 01:57:52,563 INFO L268 CegarLoopResult]: For program point L1107(lines 1107 1109) no Hoare annotation was computed. [2020-10-15 01:57:52,563 INFO L268 CegarLoopResult]: For program point L975(lines 975 977) no Hoare annotation was computed. [2020-10-15 01:57:52,563 INFO L268 CegarLoopResult]: For program point L843(lines 843 854) no Hoare annotation was computed. [2020-10-15 01:57:52,563 INFO L268 CegarLoopResult]: For program point L777(lines 777 792) no Hoare annotation was computed. [2020-10-15 01:57:52,564 INFO L268 CegarLoopResult]: For program point L447(lines 447 449) no Hoare annotation was computed. [2020-10-15 01:57:52,564 INFO L268 CegarLoopResult]: For program point L315(lines 315 317) no Hoare annotation was computed. [2020-10-15 01:57:52,564 INFO L268 CegarLoopResult]: For program point L183(lines 183 194) no Hoare annotation was computed. [2020-10-15 01:57:52,564 INFO L268 CegarLoopResult]: For program point L51(lines 51 53) no Hoare annotation was computed. [2020-10-15 01:57:52,564 INFO L268 CegarLoopResult]: For program point L911(lines 911 913) no Hoare annotation was computed. [2020-10-15 01:57:52,564 INFO L268 CegarLoopResult]: For program point L779(lines 779 790) no Hoare annotation was computed. [2020-10-15 01:57:52,564 INFO L268 CegarLoopResult]: For program point L713(lines 713 728) no Hoare annotation was computed. [2020-10-15 01:57:52,564 INFO L268 CegarLoopResult]: For program point L383(lines 383 385) no Hoare annotation was computed. [2020-10-15 01:57:52,565 INFO L268 CegarLoopResult]: For program point L251(lines 251 253) no Hoare annotation was computed. [2020-10-15 01:57:52,565 INFO L268 CegarLoopResult]: For program point L119(lines 119 121) no Hoare annotation was computed. [2020-10-15 01:57:52,565 INFO L268 CegarLoopResult]: For program point L847(lines 847 849) no Hoare annotation was computed. [2020-10-15 01:57:52,565 INFO L268 CegarLoopResult]: For program point L715(lines 715 726) no Hoare annotation was computed. [2020-10-15 01:57:52,565 INFO L268 CegarLoopResult]: For program point L649(lines 649 664) no Hoare annotation was computed. [2020-10-15 01:57:52,565 INFO L268 CegarLoopResult]: For program point L187(lines 187 189) no Hoare annotation was computed. [2020-10-15 01:57:52,565 INFO L268 CegarLoopResult]: For program point L783(lines 783 785) no Hoare annotation was computed. [2020-10-15 01:57:52,566 INFO L268 CegarLoopResult]: For program point L651(lines 651 662) no Hoare annotation was computed. [2020-10-15 01:57:52,566 INFO L268 CegarLoopResult]: For program point L585(lines 585 600) no Hoare annotation was computed. [2020-10-15 01:57:52,566 INFO L264 CegarLoopResult]: At program point L1246(lines 32 1250) the Hoare annotation is: (let ((.cse0 (<= 1 main_~this_m_delta~0)) (.cse2 (<= 1 main_~this_m_conn~0)) (.cse1 (= main_~this_m_conn_data_listener~0 0))) (or (and (<= 2 main_~q~0) (= main_~this_m_conn~0 0) .cse0 .cse1 (<= main_~q~0 2)) (and (= main_~q~0 0) .cse0 .cse1) (and (<= 1 main_~this_m_conn_data_listener~0) (<= 3 main_~q~0) .cse0 .cse2 (<= main_~q~0 3)) (and (<= 4 main_~q~0) .cse0 .cse2 .cse1))) [2020-10-15 01:57:52,566 INFO L268 CegarLoopResult]: For program point L1181(lines 1181 1196) no Hoare annotation was computed. [2020-10-15 01:57:52,566 INFO L268 CegarLoopResult]: For program point L1049(lines 1049 1064) no Hoare annotation was computed. [2020-10-15 01:57:52,567 INFO L268 CegarLoopResult]: For program point L719(lines 719 721) no Hoare annotation was computed. [2020-10-15 01:57:52,567 INFO L268 CegarLoopResult]: For program point L587(lines 587 598) no Hoare annotation was computed. [2020-10-15 01:57:52,567 INFO L268 CegarLoopResult]: For program point L521(lines 521 536) no Hoare annotation was computed. [2020-10-15 01:57:52,567 INFO L268 CegarLoopResult]: For program point L1183(lines 1183 1194) no Hoare annotation was computed. [2020-10-15 01:57:52,567 INFO L268 CegarLoopResult]: For program point L1117(lines 1117 1132) no Hoare annotation was computed. [2020-10-15 01:57:52,567 INFO L268 CegarLoopResult]: For program point L1051(lines 1051 1062) no Hoare annotation was computed. [2020-10-15 01:57:52,567 INFO L268 CegarLoopResult]: For program point L985(lines 985 1000) no Hoare annotation was computed. [2020-10-15 01:57:52,567 INFO L268 CegarLoopResult]: For program point L655(lines 655 657) no Hoare annotation was computed. [2020-10-15 01:57:52,568 INFO L268 CegarLoopResult]: For program point L523(lines 523 534) no Hoare annotation was computed. [2020-10-15 01:57:52,568 INFO L268 CegarLoopResult]: For program point L457(lines 457 472) no Hoare annotation was computed. [2020-10-15 01:57:52,568 INFO L268 CegarLoopResult]: For program point L1119(lines 1119 1130) no Hoare annotation was computed. [2020-10-15 01:57:52,568 INFO L268 CegarLoopResult]: For program point L987(lines 987 998) no Hoare annotation was computed. [2020-10-15 01:57:52,568 INFO L268 CegarLoopResult]: For program point L921(lines 921 936) no Hoare annotation was computed. [2020-10-15 01:57:52,568 INFO L268 CegarLoopResult]: For program point L591(lines 591 593) no Hoare annotation was computed. [2020-10-15 01:57:52,568 INFO L268 CegarLoopResult]: For program point L459(lines 459 470) no Hoare annotation was computed. [2020-10-15 01:57:52,568 INFO L268 CegarLoopResult]: For program point L393(lines 393 408) no Hoare annotation was computed. [2020-10-15 01:57:52,569 INFO L268 CegarLoopResult]: For program point L261(lines 261 276) no Hoare annotation was computed. [2020-10-15 01:57:52,569 INFO L268 CegarLoopResult]: For program point L129(lines 129 144) no Hoare annotation was computed. [2020-10-15 01:57:52,569 INFO L268 CegarLoopResult]: For program point L328(lines 328 1067) no Hoare annotation was computed. [2020-10-15 01:57:52,569 INFO L268 CegarLoopResult]: For program point L1187(lines 1187 1189) no Hoare annotation was computed. [2020-10-15 01:57:52,569 INFO L268 CegarLoopResult]: For program point L64(lines 64 147) no Hoare annotation was computed. [2020-10-15 01:57:52,569 INFO L268 CegarLoopResult]: For program point L1055(lines 1055 1057) no Hoare annotation was computed. [2020-10-15 01:57:52,569 INFO L268 CegarLoopResult]: For program point L923(lines 923 934) no Hoare annotation was computed. [2020-10-15 01:57:52,569 INFO L268 CegarLoopResult]: For program point L857(lines 857 872) no Hoare annotation was computed. [2020-10-15 01:57:52,569 INFO L268 CegarLoopResult]: For program point L527(lines 527 529) no Hoare annotation was computed. [2020-10-15 01:57:52,569 INFO L268 CegarLoopResult]: For program point L395(lines 395 406) no Hoare annotation was computed. [2020-10-15 01:57:52,570 INFO L268 CegarLoopResult]: For program point L329(lines 329 344) no Hoare annotation was computed. [2020-10-15 01:57:52,570 INFO L268 CegarLoopResult]: For program point L263(lines 263 274) no Hoare annotation was computed. [2020-10-15 01:57:52,570 INFO L268 CegarLoopResult]: For program point L197(lines 197 212) no Hoare annotation was computed. [2020-10-15 01:57:52,570 INFO L268 CegarLoopResult]: For program point L131(lines 131 142) no Hoare annotation was computed. [2020-10-15 01:57:52,570 INFO L268 CegarLoopResult]: For program point L65(lines 65 80) no Hoare annotation was computed. [2020-10-15 01:57:52,570 INFO L268 CegarLoopResult]: For program point L1123(lines 1123 1125) no Hoare annotation was computed. [2020-10-15 01:57:52,570 INFO L268 CegarLoopResult]: For program point L991(lines 991 993) no Hoare annotation was computed. [2020-10-15 01:57:52,570 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-10-15 01:57:52,570 INFO L268 CegarLoopResult]: For program point L793(lines 793 808) no Hoare annotation was computed. [2020-10-15 01:57:52,570 INFO L268 CegarLoopResult]: For program point L463(lines 463 465) no Hoare annotation was computed. [2020-10-15 01:57:52,571 INFO L268 CegarLoopResult]: For program point L331(lines 331 342) no Hoare annotation was computed. [2020-10-15 01:57:52,571 INFO L268 CegarLoopResult]: For program point L199(lines 199 210) no Hoare annotation was computed. [2020-10-15 01:57:52,571 INFO L268 CegarLoopResult]: For program point L67(lines 67 78) no Hoare annotation was computed. [2020-10-15 01:57:52,571 INFO L268 CegarLoopResult]: For program point L927(lines 927 929) no Hoare annotation was computed. [2020-10-15 01:57:52,571 INFO L268 CegarLoopResult]: For program point L795(lines 795 806) no Hoare annotation was computed. [2020-10-15 01:57:52,571 INFO L268 CegarLoopResult]: For program point L729(lines 729 744) no Hoare annotation was computed. [2020-10-15 01:57:52,571 INFO L268 CegarLoopResult]: For program point L399(lines 399 401) no Hoare annotation was computed. [2020-10-15 01:57:52,571 INFO L268 CegarLoopResult]: For program point L267(lines 267 269) no Hoare annotation was computed. [2020-10-15 01:57:52,571 INFO L268 CegarLoopResult]: For program point L135(lines 135 137) no Hoare annotation was computed. [2020-10-15 01:57:52,571 INFO L268 CegarLoopResult]: For program point L863(lines 863 865) no Hoare annotation was computed. [2020-10-15 01:57:52,572 INFO L268 CegarLoopResult]: For program point L731(lines 731 742) no Hoare annotation was computed. [2020-10-15 01:57:52,572 INFO L268 CegarLoopResult]: For program point L665(lines 665 680) no Hoare annotation was computed. [2020-10-15 01:57:52,572 INFO L268 CegarLoopResult]: For program point L335(lines 335 337) no Hoare annotation was computed. [2020-10-15 01:57:52,572 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 16 1255) no Hoare annotation was computed. [2020-10-15 01:57:52,572 INFO L268 CegarLoopResult]: For program point L203(lines 203 205) no Hoare annotation was computed. [2020-10-15 01:57:52,572 INFO L268 CegarLoopResult]: For program point L71(lines 71 73) no Hoare annotation was computed. [2020-10-15 01:57:52,572 INFO L268 CegarLoopResult]: For program point L799(lines 799 801) no Hoare annotation was computed. [2020-10-15 01:57:52,572 INFO L268 CegarLoopResult]: For program point L667(lines 667 678) no Hoare annotation was computed. [2020-10-15 01:57:52,572 INFO L268 CegarLoopResult]: For program point L601(lines 601 616) no Hoare annotation was computed. [2020-10-15 01:57:52,572 INFO L268 CegarLoopResult]: For program point L1197(lines 1197 1212) no Hoare annotation was computed. [2020-10-15 01:57:52,573 INFO L268 CegarLoopResult]: For program point L735(lines 735 737) no Hoare annotation was computed. [2020-10-15 01:57:52,573 INFO L268 CegarLoopResult]: For program point L603(lines 603 614) no Hoare annotation was computed. [2020-10-15 01:57:52,573 INFO L268 CegarLoopResult]: For program point L537(lines 537 552) no Hoare annotation was computed. [2020-10-15 01:57:52,573 INFO L268 CegarLoopResult]: For program point L1199(lines 1199 1210) no Hoare annotation was computed. [2020-10-15 01:57:52,573 INFO L268 CegarLoopResult]: For program point L1133(lines 1133 1148) no Hoare annotation was computed. [2020-10-15 01:57:52,573 INFO L268 CegarLoopResult]: For program point L1001(lines 1001 1016) no Hoare annotation was computed. [2020-10-15 01:57:52,573 INFO L268 CegarLoopResult]: For program point L671(lines 671 673) no Hoare annotation was computed. [2020-10-15 01:57:52,573 INFO L268 CegarLoopResult]: For program point L539(lines 539 550) no Hoare annotation was computed. [2020-10-15 01:57:52,573 INFO L268 CegarLoopResult]: For program point L473(lines 473 488) no Hoare annotation was computed. [2020-10-15 01:57:52,574 INFO L268 CegarLoopResult]: For program point L1068(lines 1068 1247) no Hoare annotation was computed. [2020-10-15 01:57:52,574 INFO L268 CegarLoopResult]: For program point L1135(lines 1135 1146) no Hoare annotation was computed. [2020-10-15 01:57:52,574 INFO L268 CegarLoopResult]: For program point L1069(lines 1069 1084) no Hoare annotation was computed. [2020-10-15 01:57:52,574 INFO L268 CegarLoopResult]: For program point L1003(lines 1003 1014) no Hoare annotation was computed. [2020-10-15 01:57:52,574 INFO L268 CegarLoopResult]: For program point L937(lines 937 952) no Hoare annotation was computed. [2020-10-15 01:57:52,574 INFO L268 CegarLoopResult]: For program point L607(lines 607 609) no Hoare annotation was computed. [2020-10-15 01:57:52,574 INFO L268 CegarLoopResult]: For program point L475(lines 475 486) no Hoare annotation was computed. [2020-10-15 01:57:52,574 INFO L268 CegarLoopResult]: For program point L409(lines 409 424) no Hoare annotation was computed. [2020-10-15 01:57:52,574 INFO L268 CegarLoopResult]: For program point L277(lines 277 292) no Hoare annotation was computed. [2020-10-15 01:57:52,575 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1254) no Hoare annotation was computed. [2020-10-15 01:57:52,575 INFO L268 CegarLoopResult]: For program point L1203(lines 1203 1205) no Hoare annotation was computed. [2020-10-15 01:57:52,575 INFO L268 CegarLoopResult]: For program point L1071(lines 1071 1082) no Hoare annotation was computed. [2020-10-15 01:57:52,575 INFO L268 CegarLoopResult]: For program point L939(lines 939 950) no Hoare annotation was computed. [2020-10-15 01:57:52,575 INFO L268 CegarLoopResult]: For program point L873(lines 873 888) no Hoare annotation was computed. [2020-10-15 01:57:52,575 INFO L268 CegarLoopResult]: For program point L543(lines 543 545) no Hoare annotation was computed. [2020-10-15 01:57:52,575 INFO L268 CegarLoopResult]: For program point L411(lines 411 422) no Hoare annotation was computed. [2020-10-15 01:57:52,575 INFO L268 CegarLoopResult]: For program point L345(lines 345 360) no Hoare annotation was computed. [2020-10-15 01:57:52,575 INFO L268 CegarLoopResult]: For program point L279(lines 279 290) no Hoare annotation was computed. [2020-10-15 01:57:52,576 INFO L268 CegarLoopResult]: For program point L213(lines 213 228) no Hoare annotation was computed. [2020-10-15 01:57:52,576 INFO L268 CegarLoopResult]: For program point L81(lines 81 96) no Hoare annotation was computed. [2020-10-15 01:57:52,576 INFO L268 CegarLoopResult]: For program point L148(lines 148 327) no Hoare annotation was computed. [2020-10-15 01:57:52,576 INFO L268 CegarLoopResult]: For program point L1139(lines 1139 1141) no Hoare annotation was computed. [2020-10-15 01:57:52,576 INFO L268 CegarLoopResult]: For program point L1007(lines 1007 1009) no Hoare annotation was computed. [2020-10-15 01:57:52,576 INFO L268 CegarLoopResult]: For program point L875(lines 875 886) no Hoare annotation was computed. [2020-10-15 01:57:52,576 INFO L268 CegarLoopResult]: For program point L809(lines 809 824) no Hoare annotation was computed. [2020-10-15 01:57:52,576 INFO L268 CegarLoopResult]: For program point L479(lines 479 481) no Hoare annotation was computed. [2020-10-15 01:57:52,576 INFO L268 CegarLoopResult]: For program point L347(lines 347 358) no Hoare annotation was computed. [2020-10-15 01:57:52,576 INFO L268 CegarLoopResult]: For program point L215(lines 215 226) no Hoare annotation was computed. [2020-10-15 01:57:52,577 INFO L268 CegarLoopResult]: For program point L149(lines 149 164) no Hoare annotation was computed. [2020-10-15 01:57:52,577 INFO L268 CegarLoopResult]: For program point L83(lines 83 94) no Hoare annotation was computed. [2020-10-15 01:57:52,577 INFO L268 CegarLoopResult]: For program point L1075(lines 1075 1077) no Hoare annotation was computed. [2020-10-15 01:57:52,577 INFO L268 CegarLoopResult]: For program point L943(lines 943 945) no Hoare annotation was computed. [2020-10-15 01:57:52,577 INFO L268 CegarLoopResult]: For program point L811(lines 811 822) no Hoare annotation was computed. [2020-10-15 01:57:52,577 INFO L268 CegarLoopResult]: For program point L745(lines 745 760) no Hoare annotation was computed. [2020-10-15 01:57:52,577 INFO L268 CegarLoopResult]: For program point L415(lines 415 417) no Hoare annotation was computed. [2020-10-15 01:57:52,577 INFO L268 CegarLoopResult]: For program point L283(lines 283 285) no Hoare annotation was computed. [2020-10-15 01:57:52,577 INFO L268 CegarLoopResult]: For program point L151(lines 151 162) no Hoare annotation was computed. [2020-10-15 01:57:52,577 INFO L268 CegarLoopResult]: For program point L879(lines 879 881) no Hoare annotation was computed. [2020-10-15 01:57:52,577 INFO L268 CegarLoopResult]: For program point L747(lines 747 758) no Hoare annotation was computed. [2020-10-15 01:57:52,578 INFO L268 CegarLoopResult]: For program point L681(lines 681 696) no Hoare annotation was computed. [2020-10-15 01:57:52,578 INFO L268 CegarLoopResult]: For program point L351(lines 351 353) no Hoare annotation was computed. [2020-10-15 01:57:52,578 INFO L268 CegarLoopResult]: For program point L219(lines 219 221) no Hoare annotation was computed. [2020-10-15 01:57:52,578 INFO L268 CegarLoopResult]: For program point L87(lines 87 89) no Hoare annotation was computed. [2020-10-15 01:57:52,578 INFO L268 CegarLoopResult]: For program point L815(lines 815 817) no Hoare annotation was computed. [2020-10-15 01:57:52,578 INFO L268 CegarLoopResult]: For program point L683(lines 683 694) no Hoare annotation was computed. [2020-10-15 01:57:52,578 INFO L268 CegarLoopResult]: For program point L617(lines 617 632) no Hoare annotation was computed. [2020-10-15 01:57:52,578 INFO L268 CegarLoopResult]: For program point L155(lines 155 157) no Hoare annotation was computed. [2020-10-15 01:57:52,578 INFO L268 CegarLoopResult]: For program point L1213(lines 1213 1228) no Hoare annotation was computed. [2020-10-15 01:57:52,578 INFO L268 CegarLoopResult]: For program point L751(lines 751 753) no Hoare annotation was computed. [2020-10-15 01:57:52,579 INFO L268 CegarLoopResult]: For program point L619(lines 619 630) no Hoare annotation was computed. [2020-10-15 01:57:52,579 INFO L268 CegarLoopResult]: For program point L553(lines 553 568) no Hoare annotation was computed. [2020-10-15 01:57:52,579 INFO L268 CegarLoopResult]: For program point L1215(lines 1215 1226) no Hoare annotation was computed. [2020-10-15 01:57:52,579 INFO L268 CegarLoopResult]: For program point L1149(lines 1149 1164) no Hoare annotation was computed. [2020-10-15 01:57:52,579 INFO L268 CegarLoopResult]: For program point L1017(lines 1017 1032) no Hoare annotation was computed. [2020-10-15 01:57:52,579 INFO L268 CegarLoopResult]: For program point L687(lines 687 689) no Hoare annotation was computed. [2020-10-15 01:57:52,579 INFO L268 CegarLoopResult]: For program point L555(lines 555 566) no Hoare annotation was computed. [2020-10-15 01:57:52,579 INFO L268 CegarLoopResult]: For program point L489(lines 489 504) no Hoare annotation was computed. [2020-10-15 01:57:52,579 INFO L268 CegarLoopResult]: For program point L1151(lines 1151 1162) no Hoare annotation was computed. [2020-10-15 01:57:52,580 INFO L268 CegarLoopResult]: For program point L1085(lines 1085 1100) no Hoare annotation was computed. [2020-10-15 01:57:52,580 INFO L268 CegarLoopResult]: For program point L1019(lines 1019 1030) no Hoare annotation was computed. [2020-10-15 01:57:52,580 INFO L268 CegarLoopResult]: For program point L953(lines 953 968) no Hoare annotation was computed. [2020-10-15 01:57:52,580 INFO L268 CegarLoopResult]: For program point L623(lines 623 625) no Hoare annotation was computed. [2020-10-15 01:57:52,580 INFO L268 CegarLoopResult]: For program point L491(lines 491 502) no Hoare annotation was computed. [2020-10-15 01:57:52,580 INFO L268 CegarLoopResult]: For program point L425(lines 425 440) no Hoare annotation was computed. [2020-10-15 01:57:52,580 INFO L268 CegarLoopResult]: For program point L293(lines 293 308) no Hoare annotation was computed. [2020-10-15 01:57:52,580 INFO L268 CegarLoopResult]: For program point L1219(lines 1219 1221) no Hoare annotation was computed. [2020-10-15 01:57:52,580 INFO L268 CegarLoopResult]: For program point L1087(lines 1087 1098) no Hoare annotation was computed. [2020-10-15 01:57:52,581 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 16 1255) the Hoare annotation is: true [2020-10-15 01:57:52,581 INFO L268 CegarLoopResult]: For program point L955(lines 955 966) no Hoare annotation was computed. [2020-10-15 01:57:52,581 INFO L268 CegarLoopResult]: For program point L889(lines 889 904) no Hoare annotation was computed. [2020-10-15 01:57:52,581 INFO L268 CegarLoopResult]: For program point L559(lines 559 561) no Hoare annotation was computed. [2020-10-15 01:57:52,581 INFO L268 CegarLoopResult]: For program point L427(lines 427 438) no Hoare annotation was computed. [2020-10-15 01:57:52,581 INFO L268 CegarLoopResult]: For program point L361(lines 361 376) no Hoare annotation was computed. [2020-10-15 01:57:52,581 INFO L268 CegarLoopResult]: For program point L295(lines 295 306) no Hoare annotation was computed. [2020-10-15 01:57:52,581 INFO L268 CegarLoopResult]: For program point L229(lines 229 244) no Hoare annotation was computed. [2020-10-15 01:57:52,581 INFO L268 CegarLoopResult]: For program point L97(lines 97 112) no Hoare annotation was computed. [2020-10-15 01:57:52,581 INFO L268 CegarLoopResult]: For program point L1155(lines 1155 1157) no Hoare annotation was computed. [2020-10-15 01:57:52,582 INFO L268 CegarLoopResult]: For program point L1023(lines 1023 1025) no Hoare annotation was computed. [2020-10-15 01:57:52,582 INFO L264 CegarLoopResult]: At program point L32-2(lines 32 1250) the Hoare annotation is: (let ((.cse0 (= main_~this_m_conn~0 0)) (.cse2 (= main_~this_m_conn_data_listener~0 0)) (.cse1 (<= 1 main_~this_m_delta~0)) (.cse3 (<= 1 main_~this_m_conn~0))) (or (and (<= 2 main_~q~0) .cse0 .cse1 .cse2 (<= main_~q~0 2)) (and (= main_~q~0 0) .cse0 .cse1 .cse2) (and (<= 4 main_~q~0) .cse1 .cse3 .cse2) (and (<= 1 main_~this_m_conn_data_listener~0) (<= 3 main_~q~0) .cse1 .cse3 (<= main_~q~0 3)))) [2020-10-15 01:57:52,582 INFO L268 CegarLoopResult]: For program point L32-3(lines 32 1250) no Hoare annotation was computed. [2020-10-15 01:57:52,582 INFO L268 CegarLoopResult]: For program point L891(lines 891 902) no Hoare annotation was computed. [2020-10-15 01:57:52,582 INFO L268 CegarLoopResult]: For program point L825(lines 825 840) no Hoare annotation was computed. [2020-10-15 01:57:52,582 INFO L268 CegarLoopResult]: For program point L495(lines 495 497) no Hoare annotation was computed. [2020-10-15 01:57:52,582 INFO L268 CegarLoopResult]: For program point L363(lines 363 374) no Hoare annotation was computed. [2020-10-15 01:57:52,583 INFO L268 CegarLoopResult]: For program point L231(lines 231 242) no Hoare annotation was computed. [2020-10-15 01:57:52,583 INFO L268 CegarLoopResult]: For program point L165(lines 165 180) no Hoare annotation was computed. [2020-10-15 01:57:52,583 INFO L268 CegarLoopResult]: For program point L99(lines 99 110) no Hoare annotation was computed. [2020-10-15 01:57:52,583 INFO L268 CegarLoopResult]: For program point L1091(lines 1091 1093) no Hoare annotation was computed. [2020-10-15 01:57:52,583 INFO L268 CegarLoopResult]: For program point L959(lines 959 961) no Hoare annotation was computed. [2020-10-15 01:57:52,583 INFO L268 CegarLoopResult]: For program point L827(lines 827 838) no Hoare annotation was computed. [2020-10-15 01:57:52,583 INFO L268 CegarLoopResult]: For program point L761(lines 761 776) no Hoare annotation was computed. [2020-10-15 01:57:52,583 INFO L268 CegarLoopResult]: For program point L431(lines 431 433) no Hoare annotation was computed. [2020-10-15 01:57:52,583 INFO L268 CegarLoopResult]: For program point L299(lines 299 301) no Hoare annotation was computed. [2020-10-15 01:57:52,584 INFO L268 CegarLoopResult]: For program point L167(lines 167 178) no Hoare annotation was computed. [2020-10-15 01:57:52,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:57:52 BoogieIcfgContainer [2020-10-15 01:57:52,607 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 01:57:52,609 INFO L168 Benchmark]: Toolchain (without parser) took 13447.33 ms. Allocated memory was 147.8 MB in the beginning and 458.8 MB in the end (delta: 310.9 MB). Free memory was 94.3 MB in the beginning and 385.9 MB in the end (delta: -291.7 MB). Peak memory consumption was 255.7 MB. Max. memory is 7.1 GB. [2020-10-15 01:57:52,610 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-10-15 01:57:52,611 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1295.75 ms. Allocated memory was 147.8 MB in the beginning and 237.5 MB in the end (delta: 89.7 MB). Free memory was 94.3 MB in the beginning and 122.6 MB in the end (delta: -28.3 MB). Peak memory consumption was 76.6 MB. Max. memory is 7.1 GB. [2020-10-15 01:57:52,611 INFO L168 Benchmark]: Boogie Preprocessor took 235.33 ms. Allocated memory is still 237.5 MB. Free memory was 122.6 MB in the beginning and 109.3 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. [2020-10-15 01:57:52,612 INFO L168 Benchmark]: RCFGBuilder took 1778.28 ms. Allocated memory was 237.5 MB in the beginning and 255.9 MB in the end (delta: 18.4 MB). Free memory was 107.9 MB in the beginning and 147.4 MB in the end (delta: -39.6 MB). Peak memory consumption was 40.6 MB. Max. memory is 7.1 GB. [2020-10-15 01:57:52,613 INFO L168 Benchmark]: TraceAbstraction took 10132.64 ms. Allocated memory was 255.9 MB in the beginning and 458.8 MB in the end (delta: 202.9 MB). Free memory was 145.4 MB in the beginning and 385.9 MB in the end (delta: -240.6 MB). Peak memory consumption was 198.7 MB. Max. memory is 7.1 GB. [2020-10-15 01:57:52,617 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1295.75 ms. Allocated memory was 147.8 MB in the beginning and 237.5 MB in the end (delta: 89.7 MB). Free memory was 94.3 MB in the beginning and 122.6 MB in the end (delta: -28.3 MB). Peak memory consumption was 76.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 235.33 ms. Allocated memory is still 237.5 MB. Free memory was 122.6 MB in the beginning and 109.3 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1778.28 ms. Allocated memory was 237.5 MB in the beginning and 255.9 MB in the end (delta: 18.4 MB). Free memory was 107.9 MB in the beginning and 147.4 MB in the end (delta: -39.6 MB). Peak memory consumption was 40.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10132.64 ms. Allocated memory was 255.9 MB in the beginning and 458.8 MB in the end (delta: 202.9 MB). Free memory was 145.4 MB in the beginning and 385.9 MB in the end (delta: -240.6 MB). Peak memory consumption was 198.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1254]: 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: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((2 <= q && this_m_conn == 0) && 1 <= this_m_delta) && this_m_conn_data_listener == 0) && q <= 2) || ((q == 0 && 1 <= this_m_delta) && this_m_conn_data_listener == 0)) || ((((1 <= this_m_conn_data_listener && 3 <= q) && 1 <= this_m_delta) && 1 <= this_m_conn) && q <= 3)) || (((4 <= q && 1 <= this_m_delta) && 1 <= this_m_conn) && this_m_conn_data_listener == 0) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((2 <= q && this_m_conn == 0) && 1 <= this_m_delta) && this_m_conn_data_listener == 0) && q <= 2) || (((q == 0 && this_m_conn == 0) && 1 <= this_m_delta) && this_m_conn_data_listener == 0)) || (((4 <= q && 1 <= this_m_delta) && 1 <= this_m_conn) && this_m_conn_data_listener == 0)) || ((((1 <= this_m_conn_data_listener && 3 <= q) && 1 <= this_m_delta) && 1 <= this_m_conn) && q <= 3) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 242 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.4s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 6.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4099 SDtfs, 6744 SDslu, 80 SDs, 0 SdLazy, 2264 SolverSat, 546 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=424occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 38 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 15 NumberOfFragments, 147 HoareAnnotationTreeSize, 7 FomulaSimplifications, 63 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 279 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 333 NumberOfCodeBlocks, 333 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 321 ConstructedInterpolants, 0 QuantifiedInterpolants, 23418 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 51/51 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...