/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/Problem02_label53.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 19:07:41,323 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 19:07:41,326 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 19:07:41,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 19:07:41,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 19:07:41,382 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 19:07:41,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 19:07:41,387 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 19:07:41,389 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 19:07:41,391 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 19:07:41,391 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 19:07:41,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 19:07:41,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 19:07:41,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 19:07:41,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 19:07:41,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 19:07:41,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 19:07:41,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 19:07:41,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 19:07:41,406 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 19:07:41,411 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 19:07:41,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 19:07:41,413 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 19:07:41,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 19:07:41,420 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 19:07:41,420 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 19:07:41,420 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 19:07:41,421 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 19:07:41,422 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 19:07:41,422 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 19:07:41,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 19:07:41,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 19:07:41,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 19:07:41,426 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 19:07:41,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 19:07:41,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 19:07:41,427 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 19:07:41,428 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 19:07:41,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 19:07:41,430 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 19:07:41,432 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 19:07:41,433 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 19:07:41,477 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 19:07:41,477 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 19:07:41,479 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 19:07:41,479 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 19:07:41,479 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 19:07:41,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 19:07:41,480 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 19:07:41,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 19:07:41,480 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 19:07:41,480 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 19:07:41,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 19:07:41,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 19:07:41,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 19:07:41,482 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 19:07:41,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 19:07:41,482 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 19:07:41,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 19:07:41,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 19:07:41,483 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 19:07:41,483 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 19:07:41,483 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 19:07:41,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 19:07:41,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 19:07:41,484 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 19:07:41,484 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 19:07:41,484 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 19:07:41,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 19:07:41,484 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 19:07:41,485 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 19:07:41,485 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 19:07:41,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 19:07:41,776 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 19:07:41,780 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 19:07:41,782 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 19:07:41,782 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 19:07:41,783 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label53.c [2020-10-14 19:07:41,852 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e90c57a95/b6602ac226ca4c3096d180e077e03261/FLAGb53cdaf4f [2020-10-14 19:07:42,408 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 19:07:42,409 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label53.c [2020-10-14 19:07:42,424 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e90c57a95/b6602ac226ca4c3096d180e077e03261/FLAGb53cdaf4f [2020-10-14 19:07:42,671 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e90c57a95/b6602ac226ca4c3096d180e077e03261 [2020-10-14 19:07:42,681 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 19:07:42,683 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 19:07:42,684 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 19:07:42,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 19:07:42,688 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 19:07:42,689 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:07:42" (1/1) ... [2020-10-14 19:07:42,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@336c4a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:07:42, skipping insertion in model container [2020-10-14 19:07:42,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:07:42" (1/1) ... [2020-10-14 19:07:42,699 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 19:07:42,751 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 19:07:43,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 19:07:43,206 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 19:07:43,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 19:07:43,496 INFO L208 MainTranslator]: Completed translation [2020-10-14 19:07:43,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:07:43 WrapperNode [2020-10-14 19:07:43,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 19:07:43,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 19:07:43,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 19:07:43,499 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 19:07:43,513 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:07:43" (1/1) ... [2020-10-14 19:07:43,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:07:43" (1/1) ... [2020-10-14 19:07:43,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:07:43" (1/1) ... [2020-10-14 19:07:43,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:07:43" (1/1) ... [2020-10-14 19:07:43,584 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:07:43" (1/1) ... [2020-10-14 19:07:43,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:07:43" (1/1) ... [2020-10-14 19:07:43,605 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:07:43" (1/1) ... [2020-10-14 19:07:43,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 19:07:43,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 19:07:43,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 19:07:43,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 19:07:43,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:07:43" (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 19:07:43,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 19:07:43,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 19:07:43,681 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 19:07:43,681 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 19:07:43,681 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 19:07:43,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 19:07:43,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 19:07:43,681 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 19:07:43,681 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 19:07:43,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 19:07:43,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 19:07:44,693 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 19:07:44,694 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 19:07:44,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:07:44 BoogieIcfgContainer [2020-10-14 19:07:44,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 19:07:44,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 19:07:44,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 19:07:44,705 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 19:07:44,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:07:42" (1/3) ... [2020-10-14 19:07:44,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77a625d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:07:44, skipping insertion in model container [2020-10-14 19:07:44,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:07:43" (2/3) ... [2020-10-14 19:07:44,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77a625d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:07:44, skipping insertion in model container [2020-10-14 19:07:44,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:07:44" (3/3) ... [2020-10-14 19:07:44,708 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label53.c [2020-10-14 19:07:44,718 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 19:07:44,726 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 19:07:44,742 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 19:07:44,770 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 19:07:44,770 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 19:07:44,770 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 19:07:44,770 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 19:07:44,771 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 19:07:44,771 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 19:07:44,771 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 19:07:44,771 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 19:07:44,795 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-10-14 19:07:44,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-14 19:07:44,810 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:07:44,811 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:07:44,812 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:07:44,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:07:44,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1422395146, now seen corresponding path program 1 times [2020-10-14 19:07:44,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:07:44,827 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1432797458] [2020-10-14 19:07:44,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:07:45,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:45,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:45,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:46,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:46,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-14 19:07:46,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:07:46,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1404 [2020-10-14 19:07:46,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:46,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:46,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:07:46,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:07:46,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-14 19:07:46,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 19:07:46,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:07:46,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:46,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:46,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:46,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:07:46,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:07:46,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 19:07:46,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:46,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:46,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:07:46,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:07:46,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:07:46,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:07:46,788 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 19:07:46,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1432797458] [2020-10-14 19:07:46,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 19:07:46,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 19:07:46,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796729841] [2020-10-14 19:07:46,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 19:07:46,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:07:46,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 19:07:46,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 19:07:46,818 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 4 states. [2020-10-14 19:07:48,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:07:48,214 INFO L93 Difference]: Finished difference Result 631 states and 1079 transitions. [2020-10-14 19:07:48,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:07:48,215 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 144 [2020-10-14 19:07:48,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:07:48,236 INFO L225 Difference]: With dead ends: 631 [2020-10-14 19:07:48,236 INFO L226 Difference]: Without dead ends: 331 [2020-10-14 19:07:48,243 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:07:48,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2020-10-14 19:07:48,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 325. [2020-10-14 19:07:48,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2020-10-14 19:07:48,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 427 transitions. [2020-10-14 19:07:48,341 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 427 transitions. Word has length 144 [2020-10-14 19:07:48,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:07:48,345 INFO L479 AbstractCegarLoop]: Abstraction has 325 states and 427 transitions. [2020-10-14 19:07:48,345 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 19:07:48,345 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 427 transitions. [2020-10-14 19:07:48,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-14 19:07:48,355 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:07:48,356 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:07:48,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 19:07:48,356 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:07:48,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:07:48,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1282323431, now seen corresponding path program 1 times [2020-10-14 19:07:48,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:07:48,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [508879363] [2020-10-14 19:07:48,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:07:48,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:48,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:48,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:48,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:49,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:49,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 19:07:49,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:07:49,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1586 [2020-10-14 19:07:49,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:49,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:49,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:07:49,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 19:07:49,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 19:07:49,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:07:50,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:07:50,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:50,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:50,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:50,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:07:50,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:07:50,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:07:50,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:50,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:50,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:07:50,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:07:50,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:07:50,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:07:50,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:07:50,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:50,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:50,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:50,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 19:07:50,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:07:50,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 19:07:50,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:50,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:50,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:07:50,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:07:50,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 19:07:50,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:07:50,147 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:07:50,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [508879363] [2020-10-14 19:07:50,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:07:50,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:07:50,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989600892] [2020-10-14 19:07:50,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:07:50,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:07:50,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:07:50,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:07:50,151 INFO L87 Difference]: Start difference. First operand 325 states and 427 transitions. Second operand 5 states. [2020-10-14 19:07:51,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:07:51,235 INFO L93 Difference]: Finished difference Result 950 states and 1274 transitions. [2020-10-14 19:07:51,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:07:51,236 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 153 [2020-10-14 19:07:51,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:07:51,242 INFO L225 Difference]: With dead ends: 950 [2020-10-14 19:07:51,243 INFO L226 Difference]: Without dead ends: 631 [2020-10-14 19:07:51,244 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 19:07:51,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2020-10-14 19:07:51,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 621. [2020-10-14 19:07:51,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 621 states. [2020-10-14 19:07:51,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 808 transitions. [2020-10-14 19:07:51,314 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 808 transitions. Word has length 153 [2020-10-14 19:07:51,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:07:51,315 INFO L479 AbstractCegarLoop]: Abstraction has 621 states and 808 transitions. [2020-10-14 19:07:51,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:07:51,315 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 808 transitions. [2020-10-14 19:07:51,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-14 19:07:51,321 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:07:51,321 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:07:51,322 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 19:07:51,324 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:07:51,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:07:51,324 INFO L82 PathProgramCache]: Analyzing trace with hash -777086369, now seen corresponding path program 1 times [2020-10-14 19:07:51,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:07:51,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [78347009] [2020-10-14 19:07:51,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:07:51,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:51,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:51,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:51,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:52,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:52,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-14 19:07:52,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:07:52,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1407 [2020-10-14 19:07:52,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:52,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:52,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:07:52,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-14 19:07:52,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 19:07:52,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:07:52,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:07:52,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:52,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:52,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:52,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:07:52,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:07:52,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:07:52,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:52,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:52,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:07:52,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:07:52,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:07:52,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:07:52,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:07:52,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:52,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:52,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:52,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 19:07:52,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:07:52,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 19:07:52,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:52,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:52,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:07:52,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:07:52,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 19:07:52,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:07:52,955 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:07:52,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [78347009] [2020-10-14 19:07:52,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:07:52,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:07:52,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20111287] [2020-10-14 19:07:52,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:07:52,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:07:52,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:07:52,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:07:52,959 INFO L87 Difference]: Start difference. First operand 621 states and 808 transitions. Second operand 5 states. [2020-10-14 19:07:54,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:07:54,135 INFO L93 Difference]: Finished difference Result 1535 states and 2085 transitions. [2020-10-14 19:07:54,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:07:54,137 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2020-10-14 19:07:54,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:07:54,143 INFO L225 Difference]: With dead ends: 1535 [2020-10-14 19:07:54,143 INFO L226 Difference]: Without dead ends: 920 [2020-10-14 19:07:54,145 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 19:07:54,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2020-10-14 19:07:54,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 913. [2020-10-14 19:07:54,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 913 states. [2020-10-14 19:07:54,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1145 transitions. [2020-10-14 19:07:54,179 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1145 transitions. Word has length 157 [2020-10-14 19:07:54,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:07:54,179 INFO L479 AbstractCegarLoop]: Abstraction has 913 states and 1145 transitions. [2020-10-14 19:07:54,180 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:07:54,180 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1145 transitions. [2020-10-14 19:07:54,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-14 19:07:54,183 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:07:54,183 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2020-10-14 19:07:54,184 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 19:07:54,184 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:07:54,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:07:54,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1820781058, now seen corresponding path program 1 times [2020-10-14 19:07:54,184 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:07:54,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1655288575] [2020-10-14 19:07:54,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:07:54,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:54,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:54,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:54,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:54,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:55,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:55,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:55,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-14 19:07:55,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 19:07:55,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1353 [2020-10-14 19:07:55,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:55,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:55,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:07:55,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 19:07:55,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 19:07:55,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:07:55,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:07:55,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:55,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:55,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:55,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:07:55,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:07:55,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 19:07:55,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:55,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:55,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:07:55,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:07:55,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:07:55,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:07:55,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:07:55,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:55,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:55,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:55,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 19:07:55,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:07:55,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:07:55,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:55,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:55,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:07:55,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:07:55,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:07:55,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:07:55,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-14 19:07:55,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:55,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:55,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:55,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 19:07:55,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:07:55,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:07:55,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:55,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:55,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:07:55,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:07:55,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 19:07:55,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:07:55,796 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 19:07:55,798 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1655288575] [2020-10-14 19:07:55,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:07:55,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:07:55,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577216901] [2020-10-14 19:07:55,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:07:55,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:07:55,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:07:55,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:07:55,805 INFO L87 Difference]: Start difference. First operand 913 states and 1145 transitions. Second operand 5 states. [2020-10-14 19:07:57,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:07:57,548 INFO L93 Difference]: Finished difference Result 2567 states and 3310 transitions. [2020-10-14 19:07:57,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:07:57,549 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-10-14 19:07:57,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:07:57,563 INFO L225 Difference]: With dead ends: 2567 [2020-10-14 19:07:57,563 INFO L226 Difference]: Without dead ends: 1660 [2020-10-14 19:07:57,567 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 19:07:57,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2020-10-14 19:07:57,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 1646. [2020-10-14 19:07:57,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1646 states. [2020-10-14 19:07:57,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2042 transitions. [2020-10-14 19:07:57,659 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2042 transitions. Word has length 161 [2020-10-14 19:07:57,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:07:57,660 INFO L479 AbstractCegarLoop]: Abstraction has 1646 states and 2042 transitions. [2020-10-14 19:07:57,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:07:57,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2042 transitions. [2020-10-14 19:07:57,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-14 19:07:57,677 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:07:57,677 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:07:57,677 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 19:07:57,678 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:07:57,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:07:57,678 INFO L82 PathProgramCache]: Analyzing trace with hash -255514577, now seen corresponding path program 1 times [2020-10-14 19:07:57,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:07:57,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1337204466] [2020-10-14 19:07:57,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:07:57,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:57,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:57,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:58,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:59,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:59,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:59,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:00,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:08:00,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-14 19:08:00,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 19:08:00,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2460 [2020-10-14 19:08:00,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:08:00,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:08:00,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:08:00,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 19:08:00,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-14 19:08:00,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:08:00,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:08:00,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:08:00,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:00,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:08:00,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:08:00,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:08:00,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:08:00,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:08:00,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:08:00,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:08:00,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:08:00,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:08:00,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:08:00,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:08:00,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:08:00,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:00,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:08:00,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 19:08:00,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:08:00,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 19:08:00,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:08:00,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:08:00,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:08:00,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:08:00,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 19:08:00,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:08:00,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-14 19:08:00,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:08:00,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:00,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:00,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:08:00,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 19:08:00,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:08:00,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 19:08:00,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:08:00,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:08:00,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:08:00,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:08:00,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 19:08:00,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:08:00,473 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 27 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 19:08:00,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1337204466] [2020-10-14 19:08:00,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:08:00,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 19:08:00,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975626120] [2020-10-14 19:08:00,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:08:00,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:08:00,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:08:00,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:08:00,476 INFO L87 Difference]: Start difference. First operand 1646 states and 2042 transitions. Second operand 7 states. [2020-10-14 19:08:02,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:08:02,160 INFO L93 Difference]: Finished difference Result 4327 states and 5774 transitions. [2020-10-14 19:08:02,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 19:08:02,161 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 183 [2020-10-14 19:08:02,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:08:02,176 INFO L225 Difference]: With dead ends: 4327 [2020-10-14 19:08:02,176 INFO L226 Difference]: Without dead ends: 2687 [2020-10-14 19:08:02,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-14 19:08:02,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states. [2020-10-14 19:08:02,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 2682. [2020-10-14 19:08:02,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2682 states. [2020-10-14 19:08:02,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2682 states to 2682 states and 3447 transitions. [2020-10-14 19:08:02,277 INFO L78 Accepts]: Start accepts. Automaton has 2682 states and 3447 transitions. Word has length 183 [2020-10-14 19:08:02,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:08:02,277 INFO L479 AbstractCegarLoop]: Abstraction has 2682 states and 3447 transitions. [2020-10-14 19:08:02,277 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:08:02,277 INFO L276 IsEmpty]: Start isEmpty. Operand 2682 states and 3447 transitions. [2020-10-14 19:08:02,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-10-14 19:08:02,287 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:08:02,287 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:08:02,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 19:08:02,288 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:08:02,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:08:02,288 INFO L82 PathProgramCache]: Analyzing trace with hash -622700683, now seen corresponding path program 1 times [2020-10-14 19:08:02,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:08:02,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [129319480] [2020-10-14 19:08:02,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:08:02,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:08:02,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:02,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:02,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:03,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:04,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:04,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:08:04,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-10-14 19:08:04,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 19:08:04,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2097 [2020-10-14 19:08:04,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:08:04,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:08:04,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:08:04,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 19:08:04,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-14 19:08:04,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:08:04,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:08:04,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:08:04,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:04,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:08:04,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:08:04,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:08:04,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 19:08:04,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:08:04,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:08:04,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:08:04,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:08:04,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:08:04,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:08:04,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:08:04,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:08:04,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:04,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:08:04,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 19:08:04,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:08:04,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 19:08:04,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:08:04,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:08:04,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:08:04,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:08:04,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 19:08:04,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:08:04,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 19:08:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:08:04,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:04,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:04,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:08:04,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 19:08:04,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:08:04,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 19:08:04,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:08:04,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:08:04,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:08:04,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:08:04,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 19:08:04,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:08:04,794 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 56 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 19:08:04,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [129319480] [2020-10-14 19:08:04,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:08:04,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 19:08:04,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422800195] [2020-10-14 19:08:04,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:08:04,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:08:04,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:08:04,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:08:04,799 INFO L87 Difference]: Start difference. First operand 2682 states and 3447 transitions. Second operand 7 states. [2020-10-14 19:08:06,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:08:06,008 INFO L93 Difference]: Finished difference Result 6689 states and 8872 transitions. [2020-10-14 19:08:06,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 19:08:06,009 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 198 [2020-10-14 19:08:06,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:08:06,029 INFO L225 Difference]: With dead ends: 6689 [2020-10-14 19:08:06,029 INFO L226 Difference]: Without dead ends: 4013 [2020-10-14 19:08:06,037 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-14 19:08:06,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4013 states. [2020-10-14 19:08:06,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4013 to 3577. [2020-10-14 19:08:06,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3577 states. [2020-10-14 19:08:06,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3577 states to 3577 states and 4699 transitions. [2020-10-14 19:08:06,151 INFO L78 Accepts]: Start accepts. Automaton has 3577 states and 4699 transitions. Word has length 198 [2020-10-14 19:08:06,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:08:06,152 INFO L479 AbstractCegarLoop]: Abstraction has 3577 states and 4699 transitions. [2020-10-14 19:08:06,152 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:08:06,152 INFO L276 IsEmpty]: Start isEmpty. Operand 3577 states and 4699 transitions. [2020-10-14 19:08:06,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-10-14 19:08:06,163 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:08:06,164 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:08:06,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 19:08:06,164 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:08:06,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:08:06,165 INFO L82 PathProgramCache]: Analyzing trace with hash -2029090892, now seen corresponding path program 1 times [2020-10-14 19:08:06,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:08:06,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [381461533] [2020-10-14 19:08:06,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:08:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:08:06,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:06,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:06,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:06,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:08,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:10,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:11,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:08:11,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-14 19:08:11,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 19:08:11,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 19:08:11,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:08:11,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:08:11,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:08:11,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-14 19:08:11,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 19:08:11,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:08:11,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:08:11,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:08:11,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:11,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:08:11,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:08:11,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:08:11,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:08:11,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:08:11,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:08:11,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:08:11,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:08:11,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:08:11,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:08:11,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:08:11,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:08:11,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:11,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:08:11,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 19:08:11,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:08:11,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 19:08:11,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:08:11,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:08:11,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:08:11,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:08:11,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:08:11,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:08:11,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 19:08:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:08:11,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:11,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:08:11,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 19:08:11,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:08:11,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 19:08:11,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:08:11,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:08:11,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:08:11,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:08:11,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:08:11,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:08:11,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 19:08:11,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:08:11,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:11,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:08:11,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 19:08:11,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:08:11,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 19:08:11,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:08:11,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:08:11,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:08:11,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:08:11,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 19:08:11,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:08:11,507 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 51 proven. 3 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-10-14 19:08:11,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [381461533] [2020-10-14 19:08:11,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:08:11,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:08:11,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938761692] [2020-10-14 19:08:11,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:08:11,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:08:11,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:08:11,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:08:11,511 INFO L87 Difference]: Start difference. First operand 3577 states and 4699 transitions. Second operand 5 states. [2020-10-14 19:08:12,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:08:12,507 INFO L93 Difference]: Finished difference Result 8310 states and 10993 transitions. [2020-10-14 19:08:12,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:08:12,507 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 203 [2020-10-14 19:08:12,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:08:12,523 INFO L225 Difference]: With dead ends: 8310 [2020-10-14 19:08:12,523 INFO L226 Difference]: Without dead ends: 3123 [2020-10-14 19:08:12,536 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:08:12,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3123 states. [2020-10-14 19:08:12,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3123 to 3119. [2020-10-14 19:08:12,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3119 states. [2020-10-14 19:08:12,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 3946 transitions. [2020-10-14 19:08:12,603 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 3946 transitions. Word has length 203 [2020-10-14 19:08:12,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:08:12,604 INFO L479 AbstractCegarLoop]: Abstraction has 3119 states and 3946 transitions. [2020-10-14 19:08:12,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:08:12,604 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 3946 transitions. [2020-10-14 19:08:12,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-10-14 19:08:12,614 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:08:12,615 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 19:08:12,615 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 19:08:12,615 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:08:12,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:08:12,616 INFO L82 PathProgramCache]: Analyzing trace with hash -472768924, now seen corresponding path program 1 times [2020-10-14 19:08:12,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:08:12,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1987188839] [2020-10-14 19:08:12,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:08:12,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:08:12,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:12,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:12,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:12,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:12,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:14,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:15,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:17,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:08:17,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 19:08:17,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 19:08:17,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-14 19:08:17,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:08:17,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:08:17,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:08:17,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-14 19:08:17,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 19:08:17,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:08:17,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:08:17,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:08:17,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:17,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:08:17,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:08:17,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:08:17,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 19:08:17,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:08:17,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:08:17,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:08:17,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:08:17,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:08:17,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:08:17,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:08:17,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:08:17,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:17,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:08:17,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 19:08:17,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:08:17,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:08:17,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:08:17,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:08:17,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:08:17,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:08:17,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:08:17,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:08:17,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 19:08:17,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:08:17,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:17,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:08:17,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 19:08:17,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:08:17,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 19:08:17,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:08:17,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:08:17,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:08:17,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:08:17,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 19:08:17,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:08:17,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 19:08:17,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:08:17,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:17,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:17,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:08:17,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 19:08:17,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:08:17,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 19:08:17,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:08:17,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:08:17,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:08:17,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:08:17,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 19:08:17,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:08:17,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 19:08:17,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:08:17,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:17,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:08:17,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 19:08:17,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:08:17,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 19:08:17,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:08:17,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:08:17,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:08:17,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:08:17,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 19:08:17,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:08:17,924 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 135 proven. 4 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-10-14 19:08:17,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1987188839] [2020-10-14 19:08:17,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:08:17,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 19:08:17,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703847841] [2020-10-14 19:08:17,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:08:17,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:08:17,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:08:17,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:08:17,926 INFO L87 Difference]: Start difference. First operand 3119 states and 3946 transitions. Second operand 7 states. [2020-10-14 19:08:19,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:08:19,261 INFO L93 Difference]: Finished difference Result 6098 states and 7697 transitions. [2020-10-14 19:08:19,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 19:08:19,262 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 235 [2020-10-14 19:08:19,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:08:19,262 INFO L225 Difference]: With dead ends: 6098 [2020-10-14 19:08:19,263 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 19:08:19,280 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-14 19:08:19,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 19:08:19,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 19:08:19,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 19:08:19,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 19:08:19,282 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 235 [2020-10-14 19:08:19,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:08:19,282 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 19:08:19,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:08:19,283 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 19:08:19,283 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 19:08:19,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 19:08:19,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 19:08:19,725 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 69 [2020-10-14 19:08:20,493 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 46 [2020-10-14 19:08:20,631 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-14 19:08:20,631 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|)) [2020-10-14 19:08:20,632 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-14 19:08:20,632 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,633 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,633 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,633 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,633 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,634 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-10-14 19:08:20,634 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-10-14 19:08:20,634 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-14 19:08:20,635 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-14 19:08:20,635 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-14 19:08:20,635 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-14 19:08:20,635 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-14 19:08:20,636 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-10-14 19:08:20,636 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-10-14 19:08:20,636 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-10-14 19:08:20,636 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-10-14 19:08:20,636 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-10-14 19:08:20,636 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-10-14 19:08:20,636 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,636 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,637 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,637 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,637 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-10-14 19:08:20,637 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,637 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-10-14 19:08:20,637 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-14 19:08:20,637 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-14 19:08:20,637 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-14 19:08:20,637 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-14 19:08:20,637 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-14 19:08:20,638 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-10-14 19:08:20,638 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-10-14 19:08:20,638 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-10-14 19:08:20,638 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-10-14 19:08:20,638 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-10-14 19:08:20,638 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-10-14 19:08:20,638 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-10-14 19:08:20,638 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-10-14 19:08:20,639 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-10-14 19:08:20,639 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,639 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,639 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,641 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,641 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,641 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 586) no Hoare annotation was computed. [2020-10-14 19:08:20,641 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-10-14 19:08:20,641 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-10-14 19:08:20,642 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-10-14 19:08:20,642 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-14 19:08:20,642 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-14 19:08:20,642 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-14 19:08:20,642 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-14 19:08:20,642 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-14 19:08:20,642 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-10-14 19:08:20,642 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-10-14 19:08:20,642 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-10-14 19:08:20,642 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,643 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,643 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,643 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,643 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,643 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-10-14 19:08:20,643 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-10-14 19:08:20,643 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-10-14 19:08:20,643 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-14 19:08:20,643 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-14 19:08:20,643 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-14 19:08:20,643 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-14 19:08:20,644 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-14 19:08:20,644 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-10-14 19:08:20,644 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-10-14 19:08:20,644 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-10-14 19:08:20,644 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-10-14 19:08:20,645 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-10-14 19:08:20,645 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,645 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,645 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,646 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,646 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,646 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-10-14 19:08:20,646 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-10-14 19:08:20,646 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-14 19:08:20,646 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-14 19:08:20,646 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-14 19:08:20,646 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-14 19:08:20,646 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-10-14 19:08:20,647 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-10-14 19:08:20,647 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-10-14 19:08:20,647 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-10-14 19:08:20,647 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-10-14 19:08:20,647 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-10-14 19:08:20,647 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-10-14 19:08:20,647 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-10-14 19:08:20,647 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-10-14 19:08:20,647 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-10-14 19:08:20,648 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,648 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,648 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,648 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,648 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-10-14 19:08:20,648 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,648 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-10-14 19:08:20,648 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,648 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-10-14 19:08:20,648 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-10-14 19:08:20,649 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-10-14 19:08:20,649 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,649 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,649 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-10-14 19:08:20,650 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-14 19:08:20,650 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-14 19:08:20,650 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-14 19:08:20,650 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-14 19:08:20,650 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-14 19:08:20,650 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-10-14 19:08:20,650 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-10-14 19:08:20,650 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-10-14 19:08:20,650 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-10-14 19:08:20,651 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-10-14 19:08:20,651 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,651 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,651 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,651 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,651 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,651 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,651 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-10-14 19:08:20,651 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-10-14 19:08:20,651 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-14 19:08:20,652 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-14 19:08:20,652 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-14 19:08:20,652 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-14 19:08:20,652 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-14 19:08:20,652 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-10-14 19:08:20,652 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-10-14 19:08:20,652 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-10-14 19:08:20,652 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-10-14 19:08:20,652 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,653 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,653 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,653 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,653 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,653 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,653 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-10-14 19:08:20,653 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-10-14 19:08:20,653 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-10-14 19:08:20,653 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-10-14 19:08:20,654 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-14 19:08:20,654 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-14 19:08:20,654 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-14 19:08:20,654 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-14 19:08:20,654 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-14 19:08:20,654 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-10-14 19:08:20,654 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-10-14 19:08:20,654 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-10-14 19:08:20,654 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-10-14 19:08:20,655 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-10-14 19:08:20,655 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,655 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,655 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,656 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse0 (= ~a28~0 |old(~a28~0)|)) (.cse6 (= ~a17~0 |old(~a17~0)|)) (.cse1 (= ~a11~0 |old(~a11~0)|)) (.cse2 (= ~a25~0 |old(~a25~0)|)) (.cse3 (= ~a19~0 |old(~a19~0)|))) (let ((.cse5 (= |old(~a25~0)| 1)) (.cse4 (and .cse0 .cse6 .cse1 .cse2 .cse3))) (and (or (not (= 7 |old(~a17~0)|)) (and .cse0 (= 7 ~a17~0) .cse1 .cse2 .cse3)) (or (not (<= |old(~a28~0)| 7)) .cse4 .cse5) (or .cse4 .cse5 (not (<= 10 |old(~a28~0)|))) (or (not (= |old(~a19~0)| |old(~a25~0)|)) (and .cse0 .cse6 .cse1 (= ~a25~0 ~a19~0) .cse3)) (or (and .cse6 .cse1 .cse2 (= ~a28~0 9) .cse3) .cse5 (not (= 9 |old(~a28~0)|))) (or .cse4 (= |old(~a11~0)| 1))))) [2020-10-14 19:08:20,656 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,656 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,656 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,656 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-10-14 19:08:20,656 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-10-14 19:08:20,656 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-10-14 19:08:20,656 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-14 19:08:20,657 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-14 19:08:20,657 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-14 19:08:20,657 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-14 19:08:20,657 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-14 19:08:20,657 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-14 19:08:20,657 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-10-14 19:08:20,657 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-10-14 19:08:20,657 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-10-14 19:08:20,657 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-10-14 19:08:20,658 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,658 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,658 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,658 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,658 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,658 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,658 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-10-14 19:08:20,658 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-10-14 19:08:20,659 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-10-14 19:08:20,659 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-14 19:08:20,659 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-14 19:08:20,659 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-14 19:08:20,659 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-14 19:08:20,659 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-14 19:08:20,659 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-10-14 19:08:20,659 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-10-14 19:08:20,659 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-10-14 19:08:20,660 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-10-14 19:08:20,660 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-10-14 19:08:20,660 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-10-14 19:08:20,660 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-10-14 19:08:20,660 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-10-14 19:08:20,660 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,660 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,660 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,660 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,660 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:08:20,661 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-10-14 19:08:20,661 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-10-14 19:08:20,661 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-10-14 19:08:20,661 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-10-14 19:08:20,661 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-10-14 19:08:20,661 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-14 19:08:20,661 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-14 19:08:20,661 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-14 19:08:20,661 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-14 19:08:20,661 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-14 19:08:20,662 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-10-14 19:08:20,662 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-10-14 19:08:20,662 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-10-14 19:08:20,662 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-10-14 19:08:20,662 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-10-14 19:08:20,662 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-10-14 19:08:20,662 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-10-14 19:08:20,662 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-10-14 19:08:20,662 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-10-14 19:08:20,662 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-14 19:08:20,663 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (not (= ~a11~0 1)) (<= ~a28~0 7) (not (= ~a25~0 1))) [2020-10-14 19:08:20,663 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-14 19:08:20,663 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-14 19:08:20,663 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) (= ~a19~0 |old(~a19~0)|)) (= |old(~a25~0)| 1) (= |old(~a11~0)| 1)) [2020-10-14 19:08:20,663 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (not (= ~a25~0 1)))) (or (not (<= |old(~a28~0)| 7)) (= 7 ~a17~0) (and (<= 10 ~a28~0) .cse0) (and (<= ~a28~0 7) .cse0) (= |old(~a25~0)| 1) (= |old(~a11~0)| 1) (not (= ~a11~0 1)) (= ~a25~0 ~a19~0) (and (= ~a28~0 9) .cse0))) [2020-10-14 19:08:20,663 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-10-14 19:08:20,663 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-10-14 19:08:20,664 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse0 (not (= ~a25~0 1)))) (or (not (<= |old(~a28~0)| 7)) (= 7 ~a17~0) (and (<= 10 ~a28~0) .cse0) (and (<= ~a28~0 7) .cse0) (= |old(~a25~0)| 1) (= |old(~a11~0)| 1) (not (= ~a11~0 1)) (= ~a25~0 ~a19~0) (and (= ~a28~0 9) .cse0))) [2020-10-14 19:08:20,664 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-10-14 19:08:20,664 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-10-14 19:08:20,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:08:20 BoogieIcfgContainer [2020-10-14 19:08:20,686 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 19:08:20,694 INFO L168 Benchmark]: Toolchain (without parser) took 38005.34 ms. Allocated memory was 148.9 MB in the beginning and 803.7 MB in the end (delta: 654.8 MB). Free memory was 103.5 MB in the beginning and 112.8 MB in the end (delta: -9.3 MB). Peak memory consumption was 645.5 MB. Max. memory is 7.1 GB. [2020-10-14 19:08:20,695 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 148.9 MB. Free memory was 123.4 MB in the beginning and 123.0 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. [2020-10-14 19:08:20,697 INFO L168 Benchmark]: CACSL2BoogieTranslator took 814.85 ms. Allocated memory was 148.9 MB in the beginning and 209.7 MB in the end (delta: 60.8 MB). Free memory was 103.0 MB in the beginning and 176.8 MB in the end (delta: -73.7 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. [2020-10-14 19:08:20,697 INFO L168 Benchmark]: Boogie Preprocessor took 111.91 ms. Allocated memory is still 209.7 MB. Free memory was 176.8 MB in the beginning and 171.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-10-14 19:08:20,701 INFO L168 Benchmark]: RCFGBuilder took 1088.78 ms. Allocated memory was 209.7 MB in the beginning and 231.7 MB in the end (delta: 22.0 MB). Free memory was 171.9 MB in the beginning and 170.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 77.8 MB. Max. memory is 7.1 GB. [2020-10-14 19:08:20,702 INFO L168 Benchmark]: TraceAbstraction took 35985.16 ms. Allocated memory was 231.7 MB in the beginning and 803.7 MB in the end (delta: 572.0 MB). Free memory was 170.8 MB in the beginning and 112.8 MB in the end (delta: 58.0 MB). Peak memory consumption was 630.0 MB. Max. memory is 7.1 GB. [2020-10-14 19:08:20,715 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 148.9 MB. Free memory was 123.4 MB in the beginning and 123.0 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 814.85 ms. Allocated memory was 148.9 MB in the beginning and 209.7 MB in the end (delta: 60.8 MB). Free memory was 103.0 MB in the beginning and 176.8 MB in the end (delta: -73.7 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.91 ms. Allocated memory is still 209.7 MB. Free memory was 176.8 MB in the beginning and 171.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1088.78 ms. Allocated memory was 209.7 MB in the beginning and 231.7 MB in the end (delta: 22.0 MB). Free memory was 171.9 MB in the beginning and 170.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 77.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 35985.16 ms. Allocated memory was 231.7 MB in the beginning and 803.7 MB in the end (delta: 572.0 MB). Free memory was 170.8 MB in the beginning and 112.8 MB in the end (delta: 58.0 MB). Peak memory consumption was 630.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 586]: 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: 606]: Loop Invariant Derived loop invariant: (((((((!(\old(a28) <= 7) || 7 == a17) || (10 <= a28 && !(a25 == 1))) || (a28 <= 7 && !(a25 == 1))) || \old(a25) == 1) || \old(a11) == 1) || !(a11 == 1)) || a25 == a19) || (a28 == 9 && !(a25 == 1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 34.5s, OverallIterations: 8, TraceHistogramMax: 5, AutomataDifference: 10.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 315 SDtfs, 2670 SDslu, 370 SDs, 0 SdLazy, 6713 SolverSat, 900 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3577occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 482 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 125 PreInvPairs, 189 NumberOfFragments, 317 HoareAnnotationTreeSize, 125 FomulaSimplifications, 35487 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2419 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 22.0s InterpolantComputationTime, 1434 NumberOfCodeBlocks, 1434 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1426 ConstructedInterpolants, 0 QuantifiedInterpolants, 874042 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 1 PerfectInterpolantSequences, 351/393 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...