/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/verifythis/elimination_max_rec_onepoint.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:29:57,193 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:29:57,197 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:29:57,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:29:57,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:29:57,225 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:29:57,227 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:29:57,229 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:29:57,231 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:29:57,232 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:29:57,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:29:57,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:29:57,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:29:57,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:29:57,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:29:57,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:29:57,239 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:29:57,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:29:57,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:29:57,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:29:57,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:29:57,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:29:57,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:29:57,250 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:29:57,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:29:57,253 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:29:57,253 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:29:57,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:29:57,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:29:57,256 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:29:57,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:29:57,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:29:57,258 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:29:57,259 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:29:57,260 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:29:57,260 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:29:57,261 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:29:57,261 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:29:57,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:29:57,263 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:29:57,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:29:57,264 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 05:29:57,298 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:29:57,299 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:29:57,300 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:29:57,300 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:29:57,300 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:29:57,300 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:29:57,301 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:29:57,301 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:29:57,301 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:29:57,301 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:29:57,301 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:29:57,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:29:57,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:29:57,302 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:29:57,302 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:29:57,302 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:29:57,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:29:57,303 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:29:57,303 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:29:57,303 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:29:57,304 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:29:57,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:29:57,304 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:29:57,304 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:29:57,304 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:29:57,305 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:29:57,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:29:57,305 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:29:57,305 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:29:57,305 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:29:57,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:29:57,803 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:29:57,810 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:29:57,812 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:29:57,812 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:29:57,814 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/verifythis/elimination_max_rec_onepoint.c [2020-09-25 05:29:57,904 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ff8e1ccbc/51648916fc5e4f1ba76f64847130ee0a/FLAG148a370a6 [2020-09-25 05:29:58,476 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:29:58,477 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/verifythis/elimination_max_rec_onepoint.c [2020-09-25 05:29:58,487 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ff8e1ccbc/51648916fc5e4f1ba76f64847130ee0a/FLAG148a370a6 [2020-09-25 05:29:58,872 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ff8e1ccbc/51648916fc5e4f1ba76f64847130ee0a [2020-09-25 05:29:58,885 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:29:58,892 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:29:58,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:29:58,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:29:58,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:29:58,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:29:58" (1/1) ... [2020-09-25 05:29:58,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bb9461a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:29:58, skipping insertion in model container [2020-09-25 05:29:58,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:29:58" (1/1) ... [2020-09-25 05:29:58,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:29:58,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:29:59,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:29:59,187 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:29:59,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:29:59,231 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:29:59,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:29:59 WrapperNode [2020-09-25 05:29:59,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:29:59,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:29:59,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:29:59,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:29:59,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:29:59" (1/1) ... [2020-09-25 05:29:59,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:29:59" (1/1) ... [2020-09-25 05:29:59,364 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:29:59" (1/1) ... [2020-09-25 05:29:59,365 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:29:59" (1/1) ... [2020-09-25 05:29:59,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:29:59" (1/1) ... [2020-09-25 05:29:59,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:29:59" (1/1) ... [2020-09-25 05:29:59,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:29:59" (1/1) ... [2020-09-25 05:29:59,388 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:29:59,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:29:59,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:29:59,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:29:59,390 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:29:59" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:29:59,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:29:59,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:29:59,461 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 05:29:59,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 05:29:59,461 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-09-25 05:29:59,461 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:29:59,461 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-25 05:29:59,461 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 05:29:59,462 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:29:59,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:29:59,462 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 05:29:59,462 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 05:29:59,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 05:29:59,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:29:59,463 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-09-25 05:29:59,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:29:59,463 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:29:59,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:29:59,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-25 05:29:59,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:29:59,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:29:59,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:29:59,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:29:59,825 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:29:59,826 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 05:29:59,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:29:59 BoogieIcfgContainer [2020-09-25 05:29:59,832 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:29:59,834 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:29:59,834 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:29:59,838 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:29:59,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:29:58" (1/3) ... [2020-09-25 05:29:59,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4790f75e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:29:59, skipping insertion in model container [2020-09-25 05:29:59,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:29:59" (2/3) ... [2020-09-25 05:29:59,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4790f75e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:29:59, skipping insertion in model container [2020-09-25 05:29:59,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:29:59" (3/3) ... [2020-09-25 05:29:59,842 INFO L109 eAbstractionObserver]: Analyzing ICFG elimination_max_rec_onepoint.c [2020-09-25 05:29:59,854 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:29:59,864 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:29:59,886 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:29:59,915 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:29:59,915 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:29:59,915 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:29:59,916 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:29:59,916 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:29:59,916 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:29:59,916 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:29:59,916 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:29:59,942 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2020-09-25 05:29:59,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 05:29:59,951 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:29:59,952 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 05:29:59,953 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:29:59,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:29:59,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1228919024, now seen corresponding path program 1 times [2020-09-25 05:29:59,970 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:29:59,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1495228694] [2020-09-25 05:29:59,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:00,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:00,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:00,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-25 05:30:00,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:00,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 627 [2020-09-25 05:30:00,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:00,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:00,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:30:00,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-25 05:30:00,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 05:30:00,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 05:30:00,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:00,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:00,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:00,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:00,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:30:00,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:00,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:30:00,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:00,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:00,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:00,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:00,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:00,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:00,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 05:30:00,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:00,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:00,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:00,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:30:00,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:00,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:30:00,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:00,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:00,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:00,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:00,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:00,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:00,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-25 05:30:00,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:00,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:00,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:00,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:30:00,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:00,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:30:00,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:00,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:00,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:00,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:00,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:00,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:01,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 05:30:01,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:01,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:01,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:01,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:30:01,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:01,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:30:01,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:01,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:01,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:01,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:01,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:01,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:01,044 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 05:30:01,045 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1495228694] [2020-09-25 05:30:01,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:01,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 05:30:01,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618977781] [2020-09-25 05:30:01,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 05:30:01,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:01,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 05:30:01,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-09-25 05:30:01,075 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 10 states. [2020-09-25 05:30:02,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:02,141 INFO L93 Difference]: Finished difference Result 221 states and 257 transitions. [2020-09-25 05:30:02,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 05:30:02,143 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 40 [2020-09-25 05:30:02,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:02,166 INFO L225 Difference]: With dead ends: 221 [2020-09-25 05:30:02,167 INFO L226 Difference]: Without dead ends: 138 [2020-09-25 05:30:02,179 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 05:30:02,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-09-25 05:30:02,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 122. [2020-09-25 05:30:02,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-09-25 05:30:02,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 132 transitions. [2020-09-25 05:30:02,277 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 132 transitions. Word has length 40 [2020-09-25 05:30:02,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:02,278 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 132 transitions. [2020-09-25 05:30:02,278 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 05:30:02,278 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 132 transitions. [2020-09-25 05:30:02,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-25 05:30:02,282 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:02,282 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 05:30:02,282 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:30:02,283 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:02,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:02,283 INFO L82 PathProgramCache]: Analyzing trace with hash -2013393660, now seen corresponding path program 1 times [2020-09-25 05:30:02,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:02,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [628712129] [2020-09-25 05:30:02,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:02,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:02,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:04,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:04,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 05:30:04,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:30:04,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2312 [2020-09-25 05:30:04,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:04,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:04,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 05:30:04,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 05:30:04,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 05:30:04,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:30:04,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:04,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:04,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:04,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:30:04,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:04,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:30:04,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:04,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:04,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:04,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:04,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:04,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:04,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 05:30:04,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:04,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:04,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:04,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:30:04,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:04,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:30:04,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:04,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:04,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:04,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:04,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:04,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:04,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-25 05:30:04,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:04,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:04,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:04,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:30:04,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:04,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:30:04,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:04,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:04,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:04,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:04,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:04,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:04,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 05:30:04,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:04,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:04,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:04,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:30:04,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:04,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:30:04,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:04,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:04,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 05:30:04,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:04,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:30:04,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:04,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 05:30:04,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:04,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:04,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:04,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:30:04,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:04,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 05:30:04,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:04,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:04,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:04,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:04,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 05:30:04,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:04,881 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 05:30:04,881 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [628712129] [2020-09-25 05:30:04,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:04,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 05:30:04,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712013318] [2020-09-25 05:30:04,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 05:30:04,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:04,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 05:30:04,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-09-25 05:30:04,886 INFO L87 Difference]: Start difference. First operand 122 states and 132 transitions. Second operand 13 states. [2020-09-25 05:30:05,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:05,873 INFO L93 Difference]: Finished difference Result 128 states and 137 transitions. [2020-09-25 05:30:05,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 05:30:05,875 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 52 [2020-09-25 05:30:05,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:05,880 INFO L225 Difference]: With dead ends: 128 [2020-09-25 05:30:05,880 INFO L226 Difference]: Without dead ends: 108 [2020-09-25 05:30:05,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=494, Unknown=0, NotChecked=0, Total=600 [2020-09-25 05:30:05,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-09-25 05:30:05,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-09-25 05:30:05,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-09-25 05:30:05,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 116 transitions. [2020-09-25 05:30:05,905 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 116 transitions. Word has length 52 [2020-09-25 05:30:05,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:05,906 INFO L479 AbstractCegarLoop]: Abstraction has 108 states and 116 transitions. [2020-09-25 05:30:05,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 05:30:05,906 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 116 transitions. [2020-09-25 05:30:05,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-25 05:30:05,908 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:05,908 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-09-25 05:30:05,909 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:30:05,909 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:05,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:05,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1709597342, now seen corresponding path program 1 times [2020-09-25 05:30:05,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:05,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [876182705] [2020-09-25 05:30:05,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:05,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:05,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:06,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:08,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:08,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 05:30:08,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:30:09,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3065 [2020-09-25 05:30:09,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:09,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:09,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 05:30:09,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-25 05:30:09,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 05:30:09,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:09,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:09,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:09,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:09,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:09,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:30:09,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:09,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:30:09,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:09,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:09,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:09,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:09,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:09,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:09,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 05:30:09,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:09,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:09,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:09,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:30:09,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:09,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:30:09,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:09,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:09,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:09,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:09,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:09,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:09,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-25 05:30:09,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:09,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:09,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:09,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:30:09,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:09,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:30:09,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:09,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:09,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:09,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:09,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:09,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:09,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 05:30:09,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:09,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:09,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:09,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:30:09,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:09,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:30:09,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:09,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:09,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:09,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:09,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:09,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:09,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-25 05:30:09,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:09,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:09,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:09,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:30:09,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:09,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 05:30:09,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:09,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:09,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:09,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:09,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:30:09,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 05:30:09,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-25 05:30:09,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:09,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:09,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:09,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:30:09,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:09,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 05:30:09,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:09,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:09,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:09,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:09,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:30:09,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:09,435 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 05:30:09,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [876182705] [2020-09-25 05:30:09,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:30:09,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 05:30:09,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317606061] [2020-09-25 05:30:09,439 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 05:30:09,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:09,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 05:30:09,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-09-25 05:30:09,440 INFO L87 Difference]: Start difference. First operand 108 states and 116 transitions. Second operand 15 states. [2020-09-25 05:30:10,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:10,934 INFO L93 Difference]: Finished difference Result 179 states and 194 transitions. [2020-09-25 05:30:10,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 05:30:10,935 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 67 [2020-09-25 05:30:10,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:10,940 INFO L225 Difference]: With dead ends: 179 [2020-09-25 05:30:10,941 INFO L226 Difference]: Without dead ends: 177 [2020-09-25 05:30:10,942 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=160, Invalid=710, Unknown=0, NotChecked=0, Total=870 [2020-09-25 05:30:10,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-09-25 05:30:10,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 151. [2020-09-25 05:30:10,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-09-25 05:30:10,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 164 transitions. [2020-09-25 05:30:10,984 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 164 transitions. Word has length 67 [2020-09-25 05:30:10,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:10,984 INFO L479 AbstractCegarLoop]: Abstraction has 151 states and 164 transitions. [2020-09-25 05:30:10,985 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 05:30:10,985 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 164 transitions. [2020-09-25 05:30:10,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-25 05:30:10,992 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:10,992 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-09-25 05:30:10,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:30:10,993 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:10,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:10,993 INFO L82 PathProgramCache]: Analyzing trace with hash 587834366, now seen corresponding path program 1 times [2020-09-25 05:30:10,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:10,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1444363533] [2020-09-25 05:30:10,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:11,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:11,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:11,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:11,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:16,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:16,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 05:30:16,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:30:16,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 05:30:16,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:16,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:16,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:30:16,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 05:30:16,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 05:30:16,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:16,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:16,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:16,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:16,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:16,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:30:16,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:16,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:30:16,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:16,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:16,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:16,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:16,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:16,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:16,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 05:30:16,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:16,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:16,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:16,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:30:16,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:16,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:30:16,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:16,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:16,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:16,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:16,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:16,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:16,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-25 05:30:16,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:16,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:16,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:16,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:30:16,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:16,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:30:16,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:16,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:16,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:16,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:16,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:16,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:16,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 05:30:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:16,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:16,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:16,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:30:16,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:16,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 05:30:16,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:16,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:16,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 05:30:16,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:16,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:30:16,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:30:16,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-25 05:30:16,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:16,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:16,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:16,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:30:16,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:16,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 05:30:16,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:16,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:16,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:16,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:16,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:30:16,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:16,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-25 05:30:16,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:16,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:16,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:16,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:30:16,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:16,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:30:16,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:16,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:16,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:16,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:16,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:30:16,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:16,260 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 05:30:16,261 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1444363533] [2020-09-25 05:30:16,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:16,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 05:30:16,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737700189] [2020-09-25 05:30:16,264 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 05:30:16,264 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:16,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 05:30:16,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:30:16,265 INFO L87 Difference]: Start difference. First operand 151 states and 164 transitions. Second operand 11 states. [2020-09-25 05:30:16,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:16,735 INFO L93 Difference]: Finished difference Result 218 states and 238 transitions. [2020-09-25 05:30:16,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 05:30:16,736 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 67 [2020-09-25 05:30:16,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:16,738 INFO L225 Difference]: With dead ends: 218 [2020-09-25 05:30:16,738 INFO L226 Difference]: Without dead ends: 135 [2020-09-25 05:30:16,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-09-25 05:30:16,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-09-25 05:30:16,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2020-09-25 05:30:16,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-09-25 05:30:16,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 144 transitions. [2020-09-25 05:30:16,779 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 144 transitions. Word has length 67 [2020-09-25 05:30:16,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:16,780 INFO L479 AbstractCegarLoop]: Abstraction has 135 states and 144 transitions. [2020-09-25 05:30:16,780 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 05:30:16,780 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 144 transitions. [2020-09-25 05:30:16,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-25 05:30:16,785 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:16,785 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-09-25 05:30:16,785 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:30:16,785 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:16,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:16,786 INFO L82 PathProgramCache]: Analyzing trace with hash 687369648, now seen corresponding path program 1 times [2020-09-25 05:30:16,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:16,786 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1729763995] [2020-09-25 05:30:16,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:16,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:16,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:17,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:17,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:21,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:21,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-09-25 05:30:21,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:30:21,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 05:30:21,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:21,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:21,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 05:30:21,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 05:30:21,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 05:30:21,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:22,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:22,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:22,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:22,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:30:22,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:22,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:30:22,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:22,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:22,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:22,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:22,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:22,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:22,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 05:30:22,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:22,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:22,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:22,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:30:22,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:22,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:30:22,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:22,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:22,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:22,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:22,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:22,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:22,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-25 05:30:22,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:22,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:22,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:22,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:30:22,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:22,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:30:22,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:22,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:22,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:22,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:22,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:22,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:22,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 05:30:22,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:22,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:22,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:22,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:30:22,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:22,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:30:22,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:22,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:22,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 05:30:22,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:22,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:30:22,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:22,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-25 05:30:22,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:22,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:22,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:22,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:30:22,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:22,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:30:22,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:22,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:22,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:22,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:22,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:30:22,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:22,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-25 05:30:22,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:22,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:22,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:22,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:30:22,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:22,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:30:22,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:22,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:22,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:22,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:22,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:30:22,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:22,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-25 05:30:22,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:22,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:22,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:22,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:30:22,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:22,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 05:30:22,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:22,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:22,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:22,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:22,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 05:30:22,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:22,162 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 05:30:22,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1729763995] [2020-09-25 05:30:22,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:30:22,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 05:30:22,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417001339] [2020-09-25 05:30:22,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 05:30:22,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:22,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 05:30:22,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2020-09-25 05:30:22,165 INFO L87 Difference]: Start difference. First operand 135 states and 144 transitions. Second operand 15 states. [2020-09-25 05:30:23,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:23,016 INFO L93 Difference]: Finished difference Result 145 states and 154 transitions. [2020-09-25 05:30:23,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 05:30:23,017 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 79 [2020-09-25 05:30:23,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:23,018 INFO L225 Difference]: With dead ends: 145 [2020-09-25 05:30:23,018 INFO L226 Difference]: Without dead ends: 97 [2020-09-25 05:30:23,020 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=148, Invalid=664, Unknown=0, NotChecked=0, Total=812 [2020-09-25 05:30:23,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-09-25 05:30:23,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 85. [2020-09-25 05:30:23,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-25 05:30:23,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 88 transitions. [2020-09-25 05:30:23,029 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 88 transitions. Word has length 79 [2020-09-25 05:30:23,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:23,029 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 88 transitions. [2020-09-25 05:30:23,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 05:30:23,030 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 88 transitions. [2020-09-25 05:30:23,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-09-25 05:30:23,031 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:23,031 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-25 05:30:23,032 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:30:23,032 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:23,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:23,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1486199216, now seen corresponding path program 2 times [2020-09-25 05:30:23,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:23,033 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1506852282] [2020-09-25 05:30:23,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:23,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:23,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:23,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:23,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:28,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:28,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-09-25 05:30:28,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:30:28,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 05:30:28,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:28,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:28,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 05:30:28,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-09-25 05:30:28,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 05:30:28,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:28,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:28,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:28,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:28,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:28,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:30:28,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:28,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:30:28,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:28,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:28,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:28,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:28,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:28,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:28,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 05:30:28,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:28,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:28,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:28,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:30:28,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:28,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:30:28,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:28,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:28,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:28,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:28,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:28,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:28,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-25 05:30:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:28,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:28,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:28,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:30:28,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:28,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:30:28,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:28,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:28,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:28,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:28,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:28,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:28,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 05:30:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:28,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:28,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:28,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:30:28,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:28,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:30:28,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:28,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:28,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:28,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:28,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:28,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:28,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-25 05:30:28,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:28,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:28,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:28,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:30:28,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:28,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:30:28,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:28,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:28,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:28,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:28,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:28,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:28,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-25 05:30:28,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:28,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:28,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:28,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:30:28,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:28,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:30:28,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:28,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:28,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:28,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:28,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:28,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:28,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-09-25 05:30:28,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:28,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:28,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:28,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:30:28,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:28,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:30:28,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:28,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:28,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:30:28,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:28,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:30:28,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:28,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-09-25 05:30:28,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:28,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:28,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:28,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:30:28,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:28,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 05:30:28,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:28,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:28,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:28,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:28,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:30:28,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:28,393 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 32 proven. 1 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-09-25 05:30:28,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1506852282] [2020-09-25 05:30:28,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:30:28,394 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 05:30:28,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824831172] [2020-09-25 05:30:28,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 05:30:28,395 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:28,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 05:30:28,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2020-09-25 05:30:28,396 INFO L87 Difference]: Start difference. First operand 85 states and 88 transitions. Second operand 13 states. [2020-09-25 05:30:29,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:29,156 INFO L93 Difference]: Finished difference Result 85 states and 88 transitions. [2020-09-25 05:30:29,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 05:30:29,157 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 94 [2020-09-25 05:30:29,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:29,158 INFO L225 Difference]: With dead ends: 85 [2020-09-25 05:30:29,158 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 05:30:29,159 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=509, Unknown=0, NotChecked=0, Total=650 [2020-09-25 05:30:29,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 05:30:29,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 05:30:29,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 05:30:29,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 05:30:29,161 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 94 [2020-09-25 05:30:29,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:29,162 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 05:30:29,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 05:30:29,163 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 05:30:29,163 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 05:30:29,163 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 05:30:29,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 05:30:29,996 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2020-09-25 05:30:30,001 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-25 05:30:30,001 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-25 05:30:30,001 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-25 05:30:30,002 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-25 05:30:30,002 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 05:30:30,002 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 05:30:30,002 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 05:30:30,002 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 05:30:30,002 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 05:30:30,003 INFO L271 CegarLoopResult]: At program point assume_abort_if_notENTRY(lines 5 7) the Hoare annotation is: true [2020-09-25 05:30:30,003 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-25 05:30:30,003 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-25 05:30:30,003 INFO L268 CegarLoopResult]: For program point L6-3(lines 5 7) no Hoare annotation was computed. [2020-09-25 05:30:30,003 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 5 7) no Hoare annotation was computed. [2020-09-25 05:30:30,003 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 38 52) no Hoare annotation was computed. [2020-09-25 05:30:30,003 INFO L268 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-09-25 05:30:30,004 INFO L264 CegarLoopResult]: At program point L48(line 48) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= main_~ai~1 main_~ax~1) (= main_~ai~1 0) (= (select |#memory_int| |main_#t~malloc10.base|) .cse0))) [2020-09-25 05:30:30,004 INFO L268 CegarLoopResult]: For program point L48-1(line 48) no Hoare annotation was computed. [2020-09-25 05:30:30,004 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-25 05:30:30,004 INFO L268 CegarLoopResult]: For program point L46-1(line 46) no Hoare annotation was computed. [2020-09-25 05:30:30,004 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 38 52) no Hoare annotation was computed. [2020-09-25 05:30:30,005 INFO L264 CegarLoopResult]: At program point L44(line 44) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2020-09-25 05:30:30,005 INFO L268 CegarLoopResult]: For program point L46-2(line 46) no Hoare annotation was computed. [2020-09-25 05:30:30,005 INFO L268 CegarLoopResult]: For program point L44-1(line 44) no Hoare annotation was computed. [2020-09-25 05:30:30,005 INFO L264 CegarLoopResult]: At program point L40(line 40) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2020-09-25 05:30:30,005 INFO L268 CegarLoopResult]: For program point L40-1(line 40) no Hoare annotation was computed. [2020-09-25 05:30:30,005 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 38 52) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2020-09-25 05:30:30,005 INFO L268 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-09-25 05:30:30,006 INFO L268 CegarLoopResult]: For program point L47-1(line 47) no Hoare annotation was computed. [2020-09-25 05:30:30,006 INFO L264 CegarLoopResult]: At program point L45(line 45) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= (select |#memory_int| |main_#t~malloc10.base|) .cse0))) [2020-09-25 05:30:30,006 INFO L268 CegarLoopResult]: For program point L47-2(line 47) no Hoare annotation was computed. [2020-09-25 05:30:30,006 INFO L268 CegarLoopResult]: For program point L45-1(line 45) no Hoare annotation was computed. [2020-09-25 05:30:30,006 INFO L264 CegarLoopResult]: At program point L43(line 43) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2020-09-25 05:30:30,006 INFO L268 CegarLoopResult]: For program point L45-2(line 45) no Hoare annotation was computed. [2020-09-25 05:30:30,007 INFO L268 CegarLoopResult]: For program point L43-1(line 43) no Hoare annotation was computed. [2020-09-25 05:30:30,008 INFO L268 CegarLoopResult]: For program point L45-3(line 45) no Hoare annotation was computed. [2020-09-25 05:30:30,008 INFO L268 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-09-25 05:30:30,008 INFO L268 CegarLoopResult]: For program point L41-1(line 41) no Hoare annotation was computed. [2020-09-25 05:30:30,008 INFO L268 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-09-25 05:30:30,008 INFO L268 CegarLoopResult]: For program point L39-1(line 39) no Hoare annotation was computed. [2020-09-25 05:30:30,010 INFO L264 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: (let ((.cse6 ((as const (Array Int Int)) 0))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (= check_~ai~0 0)) (.cse2 (= (select |#memory_int| check_~a.base) .cse6)) (.cse3 (or (= check_~ax~0 0) (= check_~ax~0 1))) (.cse4 (not (= (select |#memory_int| |check_#in~a.base|) .cse6)))) (and (or .cse0 (and .cse1 .cse2 .cse3) (not (<= 1 |check_#in~x|)) .cse4) (or .cse0 (and (or (let ((.cse5 (+ check_~y 1))) (and (<= .cse5 |check_#in~n|) (<= .cse5 check_~n) (<= 1 check_~x))) (= check_~x 0)) .cse1 .cse2 .cse3) (not (= |check_#in~x| 0)) .cse4)))) [2020-09-25 05:30:30,010 INFO L268 CegarLoopResult]: For program point L33-1(line 33) no Hoare annotation was computed. [2020-09-25 05:30:30,010 INFO L271 CegarLoopResult]: At program point checkENTRY(lines 14 36) the Hoare annotation is: true [2020-09-25 05:30:30,010 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-25 05:30:30,011 INFO L268 CegarLoopResult]: For program point L31-1(line 31) no Hoare annotation was computed. [2020-09-25 05:30:30,011 INFO L268 CegarLoopResult]: For program point L31-2(line 31) no Hoare annotation was computed. [2020-09-25 05:30:30,011 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-25 05:30:30,011 INFO L268 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-09-25 05:30:30,011 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-25 05:30:30,011 INFO L268 CegarLoopResult]: For program point L27-2(line 27) no Hoare annotation was computed. [2020-09-25 05:30:30,011 INFO L268 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2020-09-25 05:30:30,011 INFO L268 CegarLoopResult]: For program point L25-2(line 25) no Hoare annotation was computed. [2020-09-25 05:30:30,012 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 05:30:30,012 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 05:30:30,012 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-25 05:30:30,012 INFO L268 CegarLoopResult]: For program point checkFINAL(lines 14 36) no Hoare annotation was computed. [2020-09-25 05:30:30,013 INFO L268 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-09-25 05:30:30,013 INFO L268 CegarLoopResult]: For program point L32-1(line 32) no Hoare annotation was computed. [2020-09-25 05:30:30,013 INFO L268 CegarLoopResult]: For program point L32-2(line 32) no Hoare annotation was computed. [2020-09-25 05:30:30,013 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-25 05:30:30,013 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-09-25 05:30:30,013 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 05:30:30,013 INFO L268 CegarLoopResult]: For program point L24-2(lines 24 25) no Hoare annotation was computed. [2020-09-25 05:30:30,014 INFO L268 CegarLoopResult]: For program point L24-3(line 24) no Hoare annotation was computed. [2020-09-25 05:30:30,014 INFO L268 CegarLoopResult]: For program point L24-4(line 24) no Hoare annotation was computed. [2020-09-25 05:30:30,014 INFO L268 CegarLoopResult]: For program point L24-5(line 24) no Hoare annotation was computed. [2020-09-25 05:30:30,014 INFO L268 CegarLoopResult]: For program point checkEXIT(lines 14 36) no Hoare annotation was computed. [2020-09-25 05:30:30,014 INFO L264 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (let ((.cse5 ((as const (Array Int Int)) 0)) (.cse6 (+ check_~y 1))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (<= .cse6 |check_#in~n|)) (.cse2 (<= .cse6 check_~n)) (.cse3 (= (select |#memory_int| check_~a.base) .cse5)) (.cse4 (not (= (select |#memory_int| |check_#in~a.base|) .cse5)))) (and (or .cse0 (and .cse1 .cse2 .cse3 (<= 1 check_~x)) (not (<= 1 |check_#in~x|)) .cse4) (or .cse0 (and .cse1 .cse2 .cse3 (= check_~x 0)) (not (= |check_#in~x| 0)) .cse4)))) [2020-09-25 05:30:30,014 INFO L268 CegarLoopResult]: For program point L24-6(line 24) no Hoare annotation was computed. [2020-09-25 05:30:30,015 INFO L264 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: (let ((.cse5 ((as const (Array Int Int)) 0)) (.cse6 (+ check_~y 1))) (let ((.cse3 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse0 (<= .cse6 |check_#in~n|)) (.cse1 (<= .cse6 check_~n)) (.cse2 (= (select |#memory_int| check_~a.base) .cse5)) (.cse4 (not (= (select |#memory_int| |check_#in~a.base|) .cse5)))) (and (or (and .cse0 .cse1 .cse2 (<= 1 check_~x)) .cse3 (not (<= 1 |check_#in~x|)) .cse4) (or .cse3 (and .cse0 .cse1 .cse2 (= check_~x 0)) (not (= |check_#in~x| 0)) .cse4)))) [2020-09-25 05:30:30,015 INFO L268 CegarLoopResult]: For program point L24-7(line 24) no Hoare annotation was computed. [2020-09-25 05:30:30,015 INFO L268 CegarLoopResult]: For program point L24-9(line 24) no Hoare annotation was computed. [2020-09-25 05:30:30,015 INFO L268 CegarLoopResult]: For program point L14(lines 14 36) no Hoare annotation was computed. [2020-09-25 05:30:30,015 INFO L268 CegarLoopResult]: For program point L24-10(line 24) no Hoare annotation was computed. [2020-09-25 05:30:30,015 INFO L268 CegarLoopResult]: For program point L14-1(lines 14 36) no Hoare annotation was computed. [2020-09-25 05:30:30,015 INFO L264 CegarLoopResult]: At program point L24-11(lines 24 25) the Hoare annotation is: (let ((.cse3 ((as const (Array Int Int)) 0))) (let ((.cse1 (let ((.cse4 (+ check_~y 1))) (and (<= .cse4 |check_#in~n|) (<= .cse4 check_~n) (= (select |#memory_int| check_~a.base) .cse3) (<= 1 check_~x)))) (.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse2 (not (= (select |#memory_int| |check_#in~a.base|) .cse3)))) (and (or .cse0 .cse1 (not (= |check_#in~x| 0)) .cse2) (or .cse1 .cse0 (not (<= 1 |check_#in~x|)) .cse2)))) [2020-09-25 05:30:30,015 INFO L268 CegarLoopResult]: For program point L14-2(lines 14 36) no Hoare annotation was computed. [2020-09-25 05:30:30,016 INFO L268 CegarLoopResult]: For program point L14-3(lines 14 36) no Hoare annotation was computed. [2020-09-25 05:30:30,016 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 8 10) the Hoare annotation is: true [2020-09-25 05:30:30,016 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 8 10) no Hoare annotation was computed. [2020-09-25 05:30:30,016 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-09-25 05:30:30,016 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-09-25 05:30:30,016 INFO L268 CegarLoopResult]: For program point L9-3(lines 8 10) no Hoare annotation was computed. [2020-09-25 05:30:30,016 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2020-09-25 05:30:30,016 INFO L264 CegarLoopResult]: At program point #Ultimate.meminitENTRY(line -1) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2020-09-25 05:30:30,017 INFO L268 CegarLoopResult]: For program point #Ultimate.meminitEXIT(line -1) no Hoare annotation was computed. [2020-09-25 05:30:30,017 INFO L268 CegarLoopResult]: For program point #Ultimate.meminitFINAL(line -1) no Hoare annotation was computed. [2020-09-25 05:30:30,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 05:30:30 BoogieIcfgContainer [2020-09-25 05:30:30,028 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 05:30:30,031 INFO L168 Benchmark]: Toolchain (without parser) took 31142.97 ms. Allocated memory was 146.8 MB in the beginning and 416.8 MB in the end (delta: 270.0 MB). Free memory was 103.5 MB in the beginning and 274.3 MB in the end (delta: -170.8 MB). Peak memory consumption was 99.2 MB. Max. memory is 7.1 GB. [2020-09-25 05:30:30,039 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 146.8 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 05:30:30,040 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.28 ms. Allocated memory is still 146.8 MB. Free memory was 102.9 MB in the beginning and 92.2 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2020-09-25 05:30:30,041 INFO L168 Benchmark]: Boogie Preprocessor took 154.65 ms. Allocated memory was 146.8 MB in the beginning and 202.4 MB in the end (delta: 55.6 MB). Free memory was 92.2 MB in the beginning and 179.7 MB in the end (delta: -87.4 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-09-25 05:30:30,042 INFO L168 Benchmark]: RCFGBuilder took 443.54 ms. Allocated memory is still 202.4 MB. Free memory was 179.7 MB in the beginning and 157.3 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-09-25 05:30:30,043 INFO L168 Benchmark]: TraceAbstraction took 30194.32 ms. Allocated memory was 202.4 MB in the beginning and 416.8 MB in the end (delta: 214.4 MB). Free memory was 156.6 MB in the beginning and 274.3 MB in the end (delta: -117.7 MB). Peak memory consumption was 96.7 MB. Max. memory is 7.1 GB. [2020-09-25 05:30:30,056 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 146.8 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 340.28 ms. Allocated memory is still 146.8 MB. Free memory was 102.9 MB in the beginning and 92.2 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 154.65 ms. Allocated memory was 146.8 MB in the beginning and 202.4 MB in the end (delta: 55.6 MB). Free memory was 92.2 MB in the beginning and 179.7 MB in the end (delta: -87.4 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 443.54 ms. Allocated memory is still 202.4 MB. Free memory was 179.7 MB in the beginning and 157.3 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30194.32 ms. Allocated memory was 202.4 MB in the beginning and 416.8 MB in the end (delta: 214.4 MB). Free memory was 156.6 MB in the beginning and 274.3 MB in the end (delta: -117.7 MB). Peak memory consumption was 96.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 29.2s, OverallIterations: 6, TraceHistogramMax: 4, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 382 SDtfs, 1304 SDslu, 634 SDs, 0 SdLazy, 3864 SolverSat, 349 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 214 GetRequests, 79 SyntacticMatches, 2 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=151occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 54 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 72 PreInvPairs, 85 NumberOfFragments, 394 HoareAnnotationTreeSize, 72 FomulaSimplifications, 481 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 17 FomulaSimplificationsInter, 496 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 22.8s InterpolantComputationTime, 399 NumberOfCodeBlocks, 399 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 393 ConstructedInterpolants, 0 QuantifiedInterpolants, 89241 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 121/135 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...