/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/eca-rers2012/Problem01_label14.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 19:03:38,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 19:03:38,073 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 19:03:38,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 19:03:38,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 19:03:38,099 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 19:03:38,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 19:03:38,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 19:03:38,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 19:03:38,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 19:03:38,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 19:03:38,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 19:03:38,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 19:03:38,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 19:03:38,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 19:03:38,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 19:03:38,110 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 19:03:38,111 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 19:03:38,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 19:03:38,114 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 19:03:38,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 19:03:38,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 19:03:38,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 19:03:38,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 19:03:38,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 19:03:38,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 19:03:38,123 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 19:03:38,123 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 19:03:38,124 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 19:03:38,124 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 19:03:38,125 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 19:03:38,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 19:03:38,130 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 19:03:38,131 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 19:03:38,133 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 19:03:38,133 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 19:03:38,134 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 19:03:38,134 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 19:03:38,135 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 19:03:38,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 19:03:38,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 19:03:38,137 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 [2020-10-14 19:03:38,184 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 19:03:38,184 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 19:03:38,189 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 19:03:38,189 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 19:03:38,189 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 19:03:38,189 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 19:03:38,190 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 19:03:38,190 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 19:03:38,190 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 19:03:38,190 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 19:03:38,190 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 19:03:38,190 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 19:03:38,191 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 19:03:38,191 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 19:03:38,192 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 19:03:38,192 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 19:03:38,192 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 19:03:38,192 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 19:03:38,192 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 19:03:38,193 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 19:03:38,193 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 19:03:38,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 19:03:38,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 19:03:38,193 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 19:03:38,193 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 19:03:38,194 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 19:03:38,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 19:03:38,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 19:03:38,198 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 19:03:38,198 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; [2020-10-14 19:03:38,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 19:03:38,487 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 19:03:38,491 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 19:03:38,492 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 19:03:38,493 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 19:03:38,493 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label14.c [2020-10-14 19:03:38,554 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/29430b1bc/3dfa37e7b5804b1299bb3739f520d6d0/FLAGaabf9a032 [2020-10-14 19:03:39,118 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 19:03:39,119 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label14.c [2020-10-14 19:03:39,130 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/29430b1bc/3dfa37e7b5804b1299bb3739f520d6d0/FLAGaabf9a032 [2020-10-14 19:03:39,408 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/29430b1bc/3dfa37e7b5804b1299bb3739f520d6d0 [2020-10-14 19:03:39,416 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 19:03:39,417 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 19:03:39,418 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 19:03:39,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 19:03:39,422 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 19:03:39,423 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:03:39" (1/1) ... [2020-10-14 19:03:39,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d8d836f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:39, skipping insertion in model container [2020-10-14 19:03:39,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:03:39" (1/1) ... [2020-10-14 19:03:39,434 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 19:03:39,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 19:03:40,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 19:03:40,151 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 19:03:40,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 19:03:40,273 INFO L208 MainTranslator]: Completed translation [2020-10-14 19:03:40,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:40 WrapperNode [2020-10-14 19:03:40,274 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 19:03:40,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 19:03:40,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 19:03:40,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 19:03:40,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:40" (1/1) ... [2020-10-14 19:03:40,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:40" (1/1) ... [2020-10-14 19:03:40,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:40" (1/1) ... [2020-10-14 19:03:40,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:40" (1/1) ... [2020-10-14 19:03:40,342 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:40" (1/1) ... [2020-10-14 19:03:40,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:40" (1/1) ... [2020-10-14 19:03:40,362 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:40" (1/1) ... [2020-10-14 19:03:40,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 19:03:40,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 19:03:40,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 19:03:40,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 19:03:40,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:40" (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 [2020-10-14 19:03:40,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 19:03:40,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 19:03:40,478 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 19:03:40,478 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 19:03:40,478 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 19:03:40,478 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 19:03:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 19:03:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 19:03:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 19:03:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 19:03:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 19:03:41,541 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 19:03:41,541 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 19:03:41,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:03:41 BoogieIcfgContainer [2020-10-14 19:03:41,547 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 19:03:41,549 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 19:03:41,549 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 19:03:41,552 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 19:03:41,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:03:39" (1/3) ... [2020-10-14 19:03:41,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aa62d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:03:41, skipping insertion in model container [2020-10-14 19:03:41,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:40" (2/3) ... [2020-10-14 19:03:41,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aa62d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:03:41, skipping insertion in model container [2020-10-14 19:03:41,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:03:41" (3/3) ... [2020-10-14 19:03:41,556 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label14.c [2020-10-14 19:03:41,566 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 19:03:41,574 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 19:03:41,587 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 19:03:41,612 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 19:03:41,613 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 19:03:41,613 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 19:03:41,613 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 19:03:41,613 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 19:03:41,613 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 19:03:41,614 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 19:03:41,614 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 19:03:41,636 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-14 19:03:41,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-10-14 19:03:41,650 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:03:41,652 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:03:41,652 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:03:41,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:03:41,659 INFO L82 PathProgramCache]: Analyzing trace with hash -2085422569, now seen corresponding path program 1 times [2020-10-14 19:03:41,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:03:41,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [67264351] [2020-10-14 19:03:41,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:03:41,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:03:42,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:03:42,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:03:43,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:03:43,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 19:03:43,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:03:43,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1456 [2020-10-14 19:03:43,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:03:43,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:03:43,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:03:43,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:03:43,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 19:03:43,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 19:03:43,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:03:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:03:43,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:03:43,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:03:43,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:03:43,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:03:43,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 19:03:43,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:03:43,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:03:43,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:03:43,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:03:43,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:03:43,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:03:43,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:03:43,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [67264351] [2020-10-14 19:03:43,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 19:03:43,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 19:03:43,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742512887] [2020-10-14 19:03:43,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 19:03:43,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:03:43,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 19:03:43,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 19:03:43,675 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 4 states. [2020-10-14 19:03:45,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:03:45,058 INFO L93 Difference]: Finished difference Result 582 states and 980 transitions. [2020-10-14 19:03:45,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:03:45,060 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 137 [2020-10-14 19:03:45,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:03:45,076 INFO L225 Difference]: With dead ends: 582 [2020-10-14 19:03:45,076 INFO L226 Difference]: Without dead ends: 286 [2020-10-14 19:03:45,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:03:45,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-10-14 19:03:45,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 282. [2020-10-14 19:03:45,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-10-14 19:03:45,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 398 transitions. [2020-10-14 19:03:45,162 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 398 transitions. Word has length 137 [2020-10-14 19:03:45,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:03:45,163 INFO L479 AbstractCegarLoop]: Abstraction has 282 states and 398 transitions. [2020-10-14 19:03:45,164 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 19:03:45,164 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 398 transitions. [2020-10-14 19:03:45,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-14 19:03:45,169 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:03:45,169 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:03:45,170 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 19:03:45,170 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:03:45,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:03:45,171 INFO L82 PathProgramCache]: Analyzing trace with hash -168887712, now seen corresponding path program 1 times [2020-10-14 19:03:45,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:03:45,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [566890735] [2020-10-14 19:03:45,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:03:45,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:03:45,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:03:45,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:03:45,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:03:46,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:03:46,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:03:46,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-14 19:03:46,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 19:03:46,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1706 [2020-10-14 19:03:46,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:03:46,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:03:46,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:03:46,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-14 19:03:46,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-14 19:03:46,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:03:47,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:03:47,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:03:47,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:03:47,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:03:47,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:03:47,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:03:47,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:03:47,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:03:47,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:03:47,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:03:47,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:03:47,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:03:47,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:03:47,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:03:47,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:03:47,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:03:47,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:03:47,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 19:03:47,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:03:47,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 19:03:47,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:03:47,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:03:47,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:03:47,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:03:47,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 19:03:47,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:03:47,093 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:03:47,094 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [566890735] [2020-10-14 19:03:47,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:03:47,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:03:47,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210430586] [2020-10-14 19:03:47,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:03:47,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:03:47,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:03:47,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:03:47,098 INFO L87 Difference]: Start difference. First operand 282 states and 398 transitions. Second operand 5 states. [2020-10-14 19:03:48,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:03:48,191 INFO L93 Difference]: Finished difference Result 836 states and 1203 transitions. [2020-10-14 19:03:48,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:03:48,193 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 147 [2020-10-14 19:03:48,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:03:48,205 INFO L225 Difference]: With dead ends: 836 [2020-10-14 19:03:48,205 INFO L226 Difference]: Without dead ends: 560 [2020-10-14 19:03:48,207 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:03:48,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-10-14 19:03:48,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 556. [2020-10-14 19:03:48,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-10-14 19:03:48,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 712 transitions. [2020-10-14 19:03:48,269 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 712 transitions. Word has length 147 [2020-10-14 19:03:48,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:03:48,269 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 712 transitions. [2020-10-14 19:03:48,269 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:03:48,270 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 712 transitions. [2020-10-14 19:03:48,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-14 19:03:48,279 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:03:48,280 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:03:48,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 19:03:48,280 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:03:48,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:03:48,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1795048451, now seen corresponding path program 1 times [2020-10-14 19:03:48,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:03:48,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [752958462] [2020-10-14 19:03:48,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:03:48,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:03:48,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:03:48,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:03:48,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:03:48,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:03:51,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:03:52,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:03:52,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-14 19:03:52,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 19:03:52,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4254 [2020-10-14 19:03:52,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:03:52,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:03:52,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:03:52,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-14 19:03:52,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-14 19:03:52,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:03:52,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:03:52,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:03:52,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:03:52,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:03:52,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:03:52,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:03:52,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:03:52,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:03:52,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:03:52,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:03:52,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:03:52,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:03:52,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:03:52,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:03:52,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:03:52,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:03:52,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:03:52,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 19:03:52,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:03:52,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 19:03:52,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:03:52,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:03:52,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:03:52,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:03:52,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:03:52,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:03:52,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 19:03:52,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:03:52,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:03:52,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:03:52,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 19:03:52,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:03:52,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 19:03:52,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:03:52,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:03:52,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:03:52,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:03:52,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 19:03:52,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:03:52,836 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-14 19:03:52,836 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [752958462] [2020-10-14 19:03:52,837 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:03:52,837 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:03:52,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248015133] [2020-10-14 19:03:52,838 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:03:52,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:03:52,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:03:52,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:03:52,840 INFO L87 Difference]: Start difference. First operand 556 states and 712 transitions. Second operand 5 states. [2020-10-14 19:03:54,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:03:54,029 INFO L93 Difference]: Finished difference Result 1664 states and 2169 transitions. [2020-10-14 19:03:54,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:03:54,031 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-10-14 19:03:54,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:03:54,039 INFO L225 Difference]: With dead ends: 1664 [2020-10-14 19:03:54,039 INFO L226 Difference]: Without dead ends: 1114 [2020-10-14 19:03:54,040 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:03:54,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2020-10-14 19:03:54,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 971. [2020-10-14 19:03:54,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 971 states. [2020-10-14 19:03:54,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 1243 transitions. [2020-10-14 19:03:54,078 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 1243 transitions. Word has length 167 [2020-10-14 19:03:54,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:03:54,079 INFO L479 AbstractCegarLoop]: Abstraction has 971 states and 1243 transitions. [2020-10-14 19:03:54,079 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:03:54,079 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 1243 transitions. [2020-10-14 19:03:54,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-14 19:03:54,083 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:03:54,084 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:03:54,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 19:03:54,084 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:03:54,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:03:54,085 INFO L82 PathProgramCache]: Analyzing trace with hash -1945054320, now seen corresponding path program 1 times [2020-10-14 19:03:54,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:03:54,085 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2074847710] [2020-10-14 19:03:54,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:03:54,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:03:54,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:03:54,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:03:54,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:03:55,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:03:55,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-14 19:03:55,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:03:55,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1718 [2020-10-14 19:03:55,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:03:55,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:03:55,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:03:55,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-14 19:03:55,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-14 19:03:55,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:03:55,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:03:55,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:03:55,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:03:55,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:03:55,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:03:55,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:03:55,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:03:55,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:03:55,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:03:55,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:03:55,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:03:55,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:03:55,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:03:55,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:03:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:03:56,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:03:56,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:03:56,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 19:03:56,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:03:56,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 19:03:56,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:03:56,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:03:56,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:03:56,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:03:56,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 19:03:56,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:03:56,101 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:03:56,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2074847710] [2020-10-14 19:03:56,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:03:56,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:03:56,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981898354] [2020-10-14 19:03:56,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:03:56,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:03:56,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:03:56,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:03:56,103 INFO L87 Difference]: Start difference. First operand 971 states and 1243 transitions. Second operand 5 states. [2020-10-14 19:03:57,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:03:57,099 INFO L93 Difference]: Finished difference Result 2629 states and 3491 transitions. [2020-10-14 19:03:57,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:03:57,099 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 171 [2020-10-14 19:03:57,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:03:57,117 INFO L225 Difference]: With dead ends: 2629 [2020-10-14 19:03:57,117 INFO L226 Difference]: Without dead ends: 1664 [2020-10-14 19:03:57,121 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:03:57,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2020-10-14 19:03:57,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1660. [2020-10-14 19:03:57,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1660 states. [2020-10-14 19:03:57,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1660 states to 1660 states and 2095 transitions. [2020-10-14 19:03:57,193 INFO L78 Accepts]: Start accepts. Automaton has 1660 states and 2095 transitions. Word has length 171 [2020-10-14 19:03:57,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:03:57,194 INFO L479 AbstractCegarLoop]: Abstraction has 1660 states and 2095 transitions. [2020-10-14 19:03:57,194 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:03:57,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1660 states and 2095 transitions. [2020-10-14 19:03:57,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-14 19:03:57,201 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:03:57,201 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:03:57,202 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 19:03:57,202 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:03:57,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:03:57,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1394771978, now seen corresponding path program 1 times [2020-10-14 19:03:57,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:03:57,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [248893323] [2020-10-14 19:03:57,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:03:57,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:03:57,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:03:57,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:03:57,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:03:58,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:01,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:02,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:02,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 19:04:02,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 19:04:02,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-14 19:04:02,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:02,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:02,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 19:04:02,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-14 19:04:02,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 19:04:02,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:04:02,841 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2020-10-14 19:04:03,012 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2020-10-14 19:04:03,284 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 49 [2020-10-14 19:04:03,578 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 45 [2020-10-14 19:04:03,794 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 42 [2020-10-14 19:04:03,957 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 39 [2020-10-14 19:04:04,124 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 33 [2020-10-14 19:04:04,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:04:04,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:04,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:04,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:04,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:04:04,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:04,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:04:04,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:04,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:04,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:04:04,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:04,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:04:04,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:04:04,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:04:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:04,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:04,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:04,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 19:04:04,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:04,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:04:04,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:04,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:04,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:04:04,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:04,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:04:04,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:04:04,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 19:04:04,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:04,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:04,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:04,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 19:04:04,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:04,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 19:04:04,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:04,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:04,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:04:04,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:04,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:04:04,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:04:04,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 19:04:04,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:04,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:04,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:04,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 19:04:04,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:04,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 19:04:04,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:04,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:04,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:04:04,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:04,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 19:04:04,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:04:04,576 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 44 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-10-14 19:04:04,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [248893323] [2020-10-14 19:04:04,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:04:04,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 19:04:04,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789288878] [2020-10-14 19:04:04,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 19:04:04,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:04:04,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 19:04:04,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-14 19:04:04,580 INFO L87 Difference]: Start difference. First operand 1660 states and 2095 transitions. Second operand 13 states. [2020-10-14 19:04:05,061 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-14 19:04:05,662 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 114 [2020-10-14 19:04:05,862 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 40 [2020-10-14 19:04:06,435 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 111 [2020-10-14 19:04:06,750 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 108 [2020-10-14 19:04:07,087 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 105 [2020-10-14 19:04:07,635 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 100 [2020-10-14 19:04:08,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:04:08,042 INFO L93 Difference]: Finished difference Result 3446 states and 4447 transitions. [2020-10-14 19:04:08,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 19:04:08,043 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 187 [2020-10-14 19:04:08,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:04:08,054 INFO L225 Difference]: With dead ends: 3446 [2020-10-14 19:04:08,054 INFO L226 Difference]: Without dead ends: 1792 [2020-10-14 19:04:08,060 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-14 19:04:08,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1792 states. [2020-10-14 19:04:08,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1792 to 1767. [2020-10-14 19:04:08,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1767 states. [2020-10-14 19:04:08,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 2225 transitions. [2020-10-14 19:04:08,124 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 2225 transitions. Word has length 187 [2020-10-14 19:04:08,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:04:08,125 INFO L479 AbstractCegarLoop]: Abstraction has 1767 states and 2225 transitions. [2020-10-14 19:04:08,125 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 19:04:08,125 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 2225 transitions. [2020-10-14 19:04:08,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-10-14 19:04:08,132 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:04:08,132 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:04:08,132 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 19:04:08,133 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:04:08,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:04:08,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1586212480, now seen corresponding path program 1 times [2020-10-14 19:04:08,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:04:08,133 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2054245719] [2020-10-14 19:04:08,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:04:08,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:08,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:08,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:08,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:10,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:10,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:13,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:13,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-10-14 19:04:13,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 19:04:13,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-14 19:04:13,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:13,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:13,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:04:13,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 19:04:13,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 19:04:13,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:04:13,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:04:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:13,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:13,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:13,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:04:13,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:13,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 19:04:13,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:13,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:13,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:04:13,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:13,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:04:13,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:04:13,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:04:13,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:13,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:13,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:13,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 19:04:13,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:13,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 19:04:13,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:13,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:13,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:04:13,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:13,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 19:04:13,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:04:13,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 19:04:13,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:13,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:13,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:13,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:13,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 19:04:13,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:04:13,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 19:04:13,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:13,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:13,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:04:13,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:04:13,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 19:04:13,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:04:13,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 19:04:13,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:13,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:13,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:13,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 19:04:13,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:13,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 19:04:13,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:13,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:13,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:04:13,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:04:13,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 19:04:13,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:04:13,516 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 89 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-14 19:04:13,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2054245719] [2020-10-14 19:04:13,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:04:13,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 19:04:13,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494720144] [2020-10-14 19:04:13,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 19:04:13,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:04:13,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 19:04:13,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 19:04:13,518 INFO L87 Difference]: Start difference. First operand 1767 states and 2225 transitions. Second operand 8 states. [2020-10-14 19:04:15,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:04:15,389 INFO L93 Difference]: Finished difference Result 4105 states and 5149 transitions. [2020-10-14 19:04:15,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 19:04:15,390 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 201 [2020-10-14 19:04:15,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:04:15,391 INFO L225 Difference]: With dead ends: 4105 [2020-10-14 19:04:15,391 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 19:04:15,401 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-14 19:04:15,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 19:04:15,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 19:04:15,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 19:04:15,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 19:04:15,402 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 201 [2020-10-14 19:04:15,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:04:15,403 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 19:04:15,404 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 19:04:15,404 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 19:04:15,404 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 19:04:15,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 19:04:15,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 19:04:16,296 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 40 [2020-10-14 19:04:16,450 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-14 19:04:16,450 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-14 19:04:16,450 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-14 19:04:16,451 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-10-14 19:04:16,451 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-10-14 19:04:16,451 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,451 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,452 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,452 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,452 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,452 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,452 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-10-14 19:04:16,452 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-10-14 19:04:16,453 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-10-14 19:04:16,453 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-10-14 19:04:16,454 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-10-14 19:04:16,454 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-10-14 19:04:16,455 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-10-14 19:04:16,455 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-10-14 19:04:16,455 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-10-14 19:04:16,455 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-10-14 19:04:16,455 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,455 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,456 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,456 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,456 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,456 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,456 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-10-14 19:04:16,457 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-10-14 19:04:16,457 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-10-14 19:04:16,457 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-10-14 19:04:16,457 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-10-14 19:04:16,457 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-10-14 19:04:16,457 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-10-14 19:04:16,457 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-10-14 19:04:16,458 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-10-14 19:04:16,458 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-10-14 19:04:16,458 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-10-14 19:04:16,458 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 569) no Hoare annotation was computed. [2020-10-14 19:04:16,458 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-10-14 19:04:16,458 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-10-14 19:04:16,458 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-10-14 19:04:16,459 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-10-14 19:04:16,459 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,459 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,459 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,460 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,460 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,460 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-10-14 19:04:16,460 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-10-14 19:04:16,460 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-10-14 19:04:16,461 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-10-14 19:04:16,461 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-10-14 19:04:16,461 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-10-14 19:04:16,461 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-10-14 19:04:16,461 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-10-14 19:04:16,461 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-10-14 19:04:16,461 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,461 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,462 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,463 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,465 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,465 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-10-14 19:04:16,465 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-10-14 19:04:16,465 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-10-14 19:04:16,465 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-10-14 19:04:16,465 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-10-14 19:04:16,465 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-10-14 19:04:16,466 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-10-14 19:04:16,466 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-10-14 19:04:16,466 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-10-14 19:04:16,466 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-10-14 19:04:16,466 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-10-14 19:04:16,466 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-10-14 19:04:16,466 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-10-14 19:04:16,466 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,466 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,467 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,467 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,467 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,467 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-10-14 19:04:16,467 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-10-14 19:04:16,467 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-10-14 19:04:16,467 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-10-14 19:04:16,467 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-10-14 19:04:16,467 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-10-14 19:04:16,468 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-10-14 19:04:16,468 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-10-14 19:04:16,468 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-10-14 19:04:16,468 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,468 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,468 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,468 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,468 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,469 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,469 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-10-14 19:04:16,469 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,469 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-10-14 19:04:16,469 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-10-14 19:04:16,469 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-10-14 19:04:16,469 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-10-14 19:04:16,469 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-10-14 19:04:16,469 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-10-14 19:04:16,470 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-10-14 19:04:16,470 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-10-14 19:04:16,470 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-10-14 19:04:16,470 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-10-14 19:04:16,470 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-10-14 19:04:16,470 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-10-14 19:04:16,470 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-10-14 19:04:16,470 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,471 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,471 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,471 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,471 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,471 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-10-14 19:04:16,471 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-10-14 19:04:16,472 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-10-14 19:04:16,472 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-10-14 19:04:16,472 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-10-14 19:04:16,472 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-10-14 19:04:16,472 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-10-14 19:04:16,472 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-10-14 19:04:16,472 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,474 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,474 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,474 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,474 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,474 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-10-14 19:04:16,474 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-10-14 19:04:16,474 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-10-14 19:04:16,474 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-10-14 19:04:16,474 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-10-14 19:04:16,475 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-10-14 19:04:16,475 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-10-14 19:04:16,475 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-10-14 19:04:16,475 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-10-14 19:04:16,475 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-10-14 19:04:16,477 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse2 (= ~a17~0 |old(~a17~0)|)) (.cse3 (= ~a7~0 |old(~a7~0)|)) (.cse4 (= ~a21~0 |old(~a21~0)|)) (.cse5 (= ~a20~0 |old(~a20~0)|)) (.cse6 (= ~a8~0 |old(~a8~0)|))) (let ((.cse0 (not (= |old(~a7~0)| 1))) (.cse1 (and .cse2 .cse3 .cse4 .cse5 (= ~a16~0 |old(~a16~0)|) .cse6))) (and (or .cse0 (not (<= |old(~a8~0)| 13)) .cse1) (or .cse0 .cse1 (not (= 0 |old(~a20~0)|))) (or .cse0 (and .cse2 .cse3 .cse4 .cse5 .cse6 (= 5 ~a16~0)) (not (= 5 |old(~a16~0)|))) (or .cse1 (not (= |old(~a7~0)| 0)))))) [2020-10-14 19:04:16,477 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-10-14 19:04:16,477 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,477 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,477 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,477 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,477 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-10-14 19:04:16,478 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,478 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,478 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-10-14 19:04:16,478 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-10-14 19:04:16,478 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-10-14 19:04:16,478 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-10-14 19:04:16,478 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-10-14 19:04:16,478 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-10-14 19:04:16,478 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-10-14 19:04:16,479 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-10-14 19:04:16,479 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-10-14 19:04:16,479 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-10-14 19:04:16,479 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-10-14 19:04:16,479 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-10-14 19:04:16,479 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,479 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,479 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,479 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,479 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,480 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-10-14 19:04:16,480 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,480 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-10-14 19:04:16,480 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-10-14 19:04:16,480 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-10-14 19:04:16,480 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-10-14 19:04:16,480 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-10-14 19:04:16,480 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-10-14 19:04:16,481 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-10-14 19:04:16,481 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-10-14 19:04:16,481 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-10-14 19:04:16,481 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-10-14 19:04:16,481 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-10-14 19:04:16,481 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-10-14 19:04:16,481 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-10-14 19:04:16,481 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-10-14 19:04:16,481 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,482 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,482 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,482 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,482 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,482 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 19:04:16,482 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-10-14 19:04:16,482 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-10-14 19:04:16,482 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-10-14 19:04:16,482 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-10-14 19:04:16,483 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-10-14 19:04:16,483 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-10-14 19:04:16,483 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-10-14 19:04:16,483 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-10-14 19:04:16,483 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-10-14 19:04:16,483 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-10-14 19:04:16,483 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-14 19:04:16,483 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 5 ~a16~0) (= ~a7~0 0)) [2020-10-14 19:04:16,484 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-14 19:04:16,484 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-14 19:04:16,484 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (= ~a17~0 |old(~a17~0)|) (= ~a7~0 |old(~a7~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 |old(~a8~0)|) (= 5 ~a16~0)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a7~0)| 0))) [2020-10-14 19:04:16,484 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-10-14 19:04:16,484 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (= ~a7~0 1))) (or (and (= ~a20~0 0) .cse0) (and .cse0 (= 5 ~a16~0)) (and .cse0 (<= ~a8~0 13)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a7~0)| 0)) (= ~a7~0 0))) [2020-10-14 19:04:16,484 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-10-14 19:04:16,485 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-14 19:04:16,485 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (= ~a7~0 1))) (or (and (= ~a20~0 0) .cse0) (and .cse0 (= 5 ~a16~0)) (and .cse0 (<= ~a8~0 13)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a7~0)| 0)) (= ~a7~0 0))) [2020-10-14 19:04:16,485 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-10-14 19:04:16,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:04:16 BoogieIcfgContainer [2020-10-14 19:04:16,522 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 19:04:16,525 INFO L168 Benchmark]: Toolchain (without parser) took 37106.58 ms. Allocated memory was 148.4 MB in the beginning and 673.2 MB in the end (delta: 524.8 MB). Free memory was 101.4 MB in the beginning and 374.9 MB in the end (delta: -273.5 MB). Peak memory consumption was 251.3 MB. Max. memory is 7.1 GB. [2020-10-14 19:04:16,530 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 148.4 MB. Free memory was 121.7 MB in the beginning and 121.2 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-14 19:04:16,531 INFO L168 Benchmark]: CACSL2BoogieTranslator took 856.11 ms. Allocated memory was 148.4 MB in the beginning and 210.8 MB in the end (delta: 62.4 MB). Free memory was 101.4 MB in the beginning and 176.6 MB in the end (delta: -75.2 MB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. [2020-10-14 19:04:16,532 INFO L168 Benchmark]: Boogie Preprocessor took 93.92 ms. Allocated memory is still 210.8 MB. Free memory was 176.6 MB in the beginning and 171.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-10-14 19:04:16,533 INFO L168 Benchmark]: RCFGBuilder took 1178.50 ms. Allocated memory was 210.8 MB in the beginning and 233.3 MB in the end (delta: 22.5 MB). Free memory was 171.7 MB in the beginning and 171.2 MB in the end (delta: 508.0 kB). Peak memory consumption was 78.5 MB. Max. memory is 7.1 GB. [2020-10-14 19:04:16,536 INFO L168 Benchmark]: TraceAbstraction took 34973.27 ms. Allocated memory was 233.3 MB in the beginning and 673.2 MB in the end (delta: 439.9 MB). Free memory was 171.2 MB in the beginning and 374.9 MB in the end (delta: -203.7 MB). Peak memory consumption was 236.2 MB. Max. memory is 7.1 GB. [2020-10-14 19:04:16,547 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 148.4 MB. Free memory was 121.7 MB in the beginning and 121.2 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 856.11 ms. Allocated memory was 148.4 MB in the beginning and 210.8 MB in the end (delta: 62.4 MB). Free memory was 101.4 MB in the beginning and 176.6 MB in the end (delta: -75.2 MB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 93.92 ms. Allocated memory is still 210.8 MB. Free memory was 176.6 MB in the beginning and 171.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1178.50 ms. Allocated memory was 210.8 MB in the beginning and 233.3 MB in the end (delta: 22.5 MB). Free memory was 171.7 MB in the beginning and 171.2 MB in the end (delta: 508.0 kB). Peak memory consumption was 78.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 34973.27 ms. Allocated memory was 233.3 MB in the beginning and 673.2 MB in the end (delta: 439.9 MB). Free memory was 171.2 MB in the beginning and 374.9 MB in the end (delta: -203.7 MB). Peak memory consumption was 236.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 569]: 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: 583]: Loop Invariant Derived loop invariant: (((((a20 == 0 && a7 == 1) || (a7 == 1 && 5 == a16)) || (a7 == 1 && a8 <= 13)) || !(5 == \old(a16))) || !(\old(a7) == 0)) || a7 == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 33.7s, OverallIterations: 6, TraceHistogramMax: 4, AutomataDifference: 10.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 168 SDtfs, 1743 SDslu, 184 SDs, 0 SdLazy, 5257 SolverSat, 558 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 48 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1767occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 180 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 66 PreInvPairs, 106 NumberOfFragments, 269 HoareAnnotationTreeSize, 66 FomulaSimplifications, 22844 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1860 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 22.2s InterpolantComputationTime, 1010 NumberOfCodeBlocks, 1010 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1004 ConstructedInterpolants, 0 QuantifiedInterpolants, 1084480 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 243/256 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...