/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/invert_string-3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 05:36:18,379 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 05:36:18,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 05:36:18,422 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 05:36:18,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 05:36:18,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 05:36:18,432 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 05:36:18,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 05:36:18,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 05:36:18,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 05:36:18,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 05:36:18,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 05:36:18,444 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 05:36:18,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 05:36:18,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 05:36:18,450 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 05:36:18,452 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 05:36:18,453 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 05:36:18,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 05:36:18,462 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 05:36:18,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 05:36:18,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 05:36:18,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 05:36:18,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 05:36:18,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 05:36:18,479 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 05:36:18,479 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 05:36:18,489 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 05:36:18,489 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 05:36:18,490 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 05:36:18,490 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 05:36:18,491 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 05:36:18,492 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 05:36:18,492 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 05:36:18,496 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 05:36:18,497 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 05:36:18,497 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 05:36:18,498 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 05:36:18,498 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 05:36:18,499 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 05:36:18,501 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 05:36:18,502 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 05:36:18,538 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 05:36:18,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 05:36:18,540 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 05:36:18,541 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 05:36:18,541 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 05:36:18,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 05:36:18,541 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 05:36:18,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 05:36:18,542 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 05:36:18,542 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 05:36:18,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 05:36:18,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 05:36:18,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 05:36:18,544 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 05:36:18,544 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 05:36:18,544 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 05:36:18,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 05:36:18,545 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 05:36:18,545 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 05:36:18,545 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 05:36:18,545 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 05:36:18,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 05:36:18,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 05:36:18,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 05:36:18,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 05:36:18,546 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 05:36:18,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 05:36:18,547 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 05:36:18,547 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 05:36:18,547 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 05:36:18,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 05:36:18,870 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 05:36:18,874 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 05:36:18,875 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 05:36:18,876 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 05:36:18,877 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/invert_string-3.c [2020-10-14 05:36:18,946 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b82005df8/fbdd534974d1449cafe4282039541668/FLAGdb6655327 [2020-10-14 05:36:19,386 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 05:36:19,387 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/invert_string-3.c [2020-10-14 05:36:19,393 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b82005df8/fbdd534974d1449cafe4282039541668/FLAGdb6655327 [2020-10-14 05:36:19,773 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b82005df8/fbdd534974d1449cafe4282039541668 [2020-10-14 05:36:19,781 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 05:36:19,783 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 05:36:19,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 05:36:19,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 05:36:19,792 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 05:36:19,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:36:19" (1/1) ... [2020-10-14 05:36:19,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34fa96a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:36:19, skipping insertion in model container [2020-10-14 05:36:19,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:36:19" (1/1) ... [2020-10-14 05:36:19,807 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 05:36:19,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 05:36:20,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 05:36:20,089 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 05:36:20,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 05:36:20,128 INFO L208 MainTranslator]: Completed translation [2020-10-14 05:36:20,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:36:20 WrapperNode [2020-10-14 05:36:20,129 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 05:36:20,130 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 05:36:20,130 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 05:36:20,130 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 05:36:20,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:36:20" (1/1) ... [2020-10-14 05:36:20,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:36:20" (1/1) ... [2020-10-14 05:36:20,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:36:20" (1/1) ... [2020-10-14 05:36:20,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:36:20" (1/1) ... [2020-10-14 05:36:20,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:36:20" (1/1) ... [2020-10-14 05:36:20,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:36:20" (1/1) ... [2020-10-14 05:36:20,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:36:20" (1/1) ... [2020-10-14 05:36:20,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 05:36:20,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 05:36:20,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 05:36:20,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 05:36:20,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:36:20" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 05:36:20,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 05:36:20,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 05:36:20,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-14 05:36:20,326 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 05:36:20,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 05:36:20,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 05:36:20,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 05:36:20,327 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 05:36:20,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 05:36:20,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 05:36:20,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 05:36:20,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 05:36:20,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 05:36:20,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 05:36:20,590 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 05:36:20,591 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-14 05:36:20,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:36:20 BoogieIcfgContainer [2020-10-14 05:36:20,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 05:36:20,597 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 05:36:20,598 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 05:36:20,601 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 05:36:20,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:36:19" (1/3) ... [2020-10-14 05:36:20,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fd46956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:36:20, skipping insertion in model container [2020-10-14 05:36:20,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:36:20" (2/3) ... [2020-10-14 05:36:20,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fd46956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:36:20, skipping insertion in model container [2020-10-14 05:36:20,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:36:20" (3/3) ... [2020-10-14 05:36:20,604 INFO L109 eAbstractionObserver]: Analyzing ICFG invert_string-3.c [2020-10-14 05:36:20,616 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 05:36:20,624 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 05:36:20,640 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 05:36:20,665 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 05:36:20,666 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 05:36:20,666 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 05:36:20,666 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 05:36:20,666 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 05:36:20,666 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 05:36:20,667 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 05:36:20,667 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 05:36:20,698 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-10-14 05:36:20,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-14 05:36:20,705 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:36:20,706 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:36:20,706 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:36:20,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:36:20,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1778002988, now seen corresponding path program 1 times [2020-10-14 05:36:20,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:36:20,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [725721772] [2020-10-14 05:36:20,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:36:20,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:20,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:20,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:21,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:21,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 05:36:21,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:36:21,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 449 [2020-10-14 05:36:21,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:21,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:21,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:36:21,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 05:36:21,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:36:21,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 05:36:21,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:36:21,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:21,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:21,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:21,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:36:21,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:36:21,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 05:36:21,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:21,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:21,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:36:21,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:36:21,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:36:21,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:21,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:36:21,381 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [725721772] [2020-10-14 05:36:21,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:36:21,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 05:36:21,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961564615] [2020-10-14 05:36:21,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 05:36:21,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:36:21,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 05:36:21,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 05:36:21,409 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 3 states. [2020-10-14 05:36:21,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:36:21,533 INFO L93 Difference]: Finished difference Result 46 states and 57 transitions. [2020-10-14 05:36:21,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 05:36:21,537 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-10-14 05:36:21,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:36:21,547 INFO L225 Difference]: With dead ends: 46 [2020-10-14 05:36:21,547 INFO L226 Difference]: Without dead ends: 22 [2020-10-14 05:36:21,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 05:36:21,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-14 05:36:21,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-14 05:36:21,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-14 05:36:21,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2020-10-14 05:36:21,602 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 15 [2020-10-14 05:36:21,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:36:21,602 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2020-10-14 05:36:21,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 05:36:21,603 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2020-10-14 05:36:21,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-14 05:36:21,605 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:36:21,606 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:36:21,607 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 05:36:21,607 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:36:21,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:36:21,608 INFO L82 PathProgramCache]: Analyzing trace with hash -262172122, now seen corresponding path program 1 times [2020-10-14 05:36:21,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:36:21,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1419035613] [2020-10-14 05:36:21,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:36:21,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:21,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:21,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:21,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:21,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 05:36:21,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:36:21,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-10-14 05:36:21,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:21,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:21,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:36:21,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:36:21,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 05:36:21,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:22,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:36:22,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:22,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:22,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:22,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:36:22,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:36:22,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:36:22,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:22,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:22,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:36:22,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:36:22,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:36:22,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:22,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:36:22,028 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1419035613] [2020-10-14 05:36:22,029 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:36:22,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 05:36:22,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379973480] [2020-10-14 05:36:22,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 05:36:22,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:36:22,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 05:36:22,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 05:36:22,032 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 4 states. [2020-10-14 05:36:22,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:36:22,128 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2020-10-14 05:36:22,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 05:36:22,129 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-14 05:36:22,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:36:22,130 INFO L225 Difference]: With dead ends: 38 [2020-10-14 05:36:22,130 INFO L226 Difference]: Without dead ends: 24 [2020-10-14 05:36:22,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 05:36:22,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-14 05:36:22,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2020-10-14 05:36:22,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-14 05:36:22,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2020-10-14 05:36:22,144 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 15 [2020-10-14 05:36:22,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:36:22,145 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2020-10-14 05:36:22,145 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 05:36:22,145 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2020-10-14 05:36:22,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-14 05:36:22,146 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:36:22,147 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:36:22,147 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 05:36:22,147 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:36:22,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:36:22,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1578997828, now seen corresponding path program 1 times [2020-10-14 05:36:22,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:36:22,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [11836237] [2020-10-14 05:36:22,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:36:22,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:22,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:22,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:22,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:22,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 05:36:22,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:36:22,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 347 [2020-10-14 05:36:22,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:22,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:22,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:36:22,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:36:22,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:36:22,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:22,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:36:22,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:22,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:22,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:22,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:36:22,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:36:22,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:36:22,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:22,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:22,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:36:22,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:36:22,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:36:22,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-14 05:36:22,637 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 05:36:22,638 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [11836237] [2020-10-14 05:36:22,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:36:22,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 05:36:22,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060866333] [2020-10-14 05:36:22,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 05:36:22,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:36:22,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 05:36:22,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:36:22,642 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 5 states. [2020-10-14 05:36:22,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:36:22,763 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2020-10-14 05:36:22,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 05:36:22,763 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-14 05:36:22,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:36:22,764 INFO L225 Difference]: With dead ends: 36 [2020-10-14 05:36:22,765 INFO L226 Difference]: Without dead ends: 25 [2020-10-14 05:36:22,765 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:36:22,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-10-14 05:36:22,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2020-10-14 05:36:22,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-14 05:36:22,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2020-10-14 05:36:22,772 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 17 [2020-10-14 05:36:22,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:36:22,772 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2020-10-14 05:36:22,773 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 05:36:22,773 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2020-10-14 05:36:22,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-14 05:36:22,773 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:36:22,774 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:36:22,774 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 05:36:22,774 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:36:22,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:36:22,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1323409058, now seen corresponding path program 1 times [2020-10-14 05:36:22,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:36:22,775 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1480443327] [2020-10-14 05:36:22,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:36:22,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:22,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:22,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:23,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:23,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:23,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 05:36:23,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:36:23,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 442 [2020-10-14 05:36:23,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:23,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:23,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:36:23,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:36:23,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 05:36:23,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:23,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:36:23,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:23,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:23,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:23,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:36:23,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:36:23,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:36:23,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:23,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:23,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:36:23,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:36:23,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:36:23,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:23,317 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 05:36:23,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1480443327] [2020-10-14 05:36:23,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:36:23,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 05:36:23,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137240992] [2020-10-14 05:36:23,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 05:36:23,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:36:23,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 05:36:23,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:36:23,320 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 6 states. [2020-10-14 05:36:23,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:36:23,417 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2020-10-14 05:36:23,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 05:36:23,418 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-10-14 05:36:23,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:36:23,419 INFO L225 Difference]: With dead ends: 38 [2020-10-14 05:36:23,419 INFO L226 Difference]: Without dead ends: 27 [2020-10-14 05:36:23,420 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 05:36:23,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-14 05:36:23,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2020-10-14 05:36:23,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-14 05:36:23,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2020-10-14 05:36:23,426 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 19 [2020-10-14 05:36:23,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:36:23,426 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2020-10-14 05:36:23,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 05:36:23,427 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2020-10-14 05:36:23,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-14 05:36:23,428 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:36:23,428 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:36:23,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 05:36:23,428 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:36:23,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:36:23,429 INFO L82 PathProgramCache]: Analyzing trace with hash 515736960, now seen corresponding path program 2 times [2020-10-14 05:36:23,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:36:23,430 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [201905644] [2020-10-14 05:36:23,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:36:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:23,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:23,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:23,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:23,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:23,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 05:36:23,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:36:23,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 494 [2020-10-14 05:36:23,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:23,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:23,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:36:23,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:36:23,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 05:36:23,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:24,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:36:24,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:24,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:24,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:24,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:36:24,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:36:24,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:36:24,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:24,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:24,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:36:24,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:36:24,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:36:24,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:24,031 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 05:36:24,031 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [201905644] [2020-10-14 05:36:24,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:36:24,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 05:36:24,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607436126] [2020-10-14 05:36:24,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 05:36:24,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:36:24,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 05:36:24,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:36:24,034 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand 5 states. [2020-10-14 05:36:24,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:36:24,117 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2020-10-14 05:36:24,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 05:36:24,118 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-14 05:36:24,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:36:24,119 INFO L225 Difference]: With dead ends: 46 [2020-10-14 05:36:24,119 INFO L226 Difference]: Without dead ends: 29 [2020-10-14 05:36:24,120 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:36:24,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-14 05:36:24,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2020-10-14 05:36:24,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-14 05:36:24,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2020-10-14 05:36:24,126 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 21 [2020-10-14 05:36:24,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:36:24,126 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2020-10-14 05:36:24,126 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 05:36:24,127 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2020-10-14 05:36:24,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-14 05:36:24,127 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:36:24,128 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:36:24,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 05:36:24,128 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:36:24,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:36:24,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1582955806, now seen corresponding path program 3 times [2020-10-14 05:36:24,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:36:24,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2000236724] [2020-10-14 05:36:24,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:36:24,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:24,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:24,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:24,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:24,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:24,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 05:36:24,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:36:24,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 655 [2020-10-14 05:36:24,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:24,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:24,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:36:24,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:36:24,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 05:36:24,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:24,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:36:24,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:24,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:24,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:24,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:36:24,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:36:24,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:36:24,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:24,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:24,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:36:24,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:36:24,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:36:24,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:24,931 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 05:36:24,932 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2000236724] [2020-10-14 05:36:24,932 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:36:24,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 05:36:24,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454262547] [2020-10-14 05:36:24,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 05:36:24,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:36:24,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 05:36:24,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 05:36:24,934 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand 7 states. [2020-10-14 05:36:25,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:36:25,091 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2020-10-14 05:36:25,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 05:36:25,092 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-10-14 05:36:25,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:36:25,093 INFO L225 Difference]: With dead ends: 42 [2020-10-14 05:36:25,093 INFO L226 Difference]: Without dead ends: 31 [2020-10-14 05:36:25,094 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-14 05:36:25,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-14 05:36:25,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2020-10-14 05:36:25,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-14 05:36:25,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2020-10-14 05:36:25,100 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 23 [2020-10-14 05:36:25,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:36:25,101 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2020-10-14 05:36:25,101 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 05:36:25,101 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2020-10-14 05:36:25,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-14 05:36:25,102 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:36:25,102 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:36:25,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 05:36:25,103 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:36:25,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:36:25,103 INFO L82 PathProgramCache]: Analyzing trace with hash 832058620, now seen corresponding path program 4 times [2020-10-14 05:36:25,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:36:25,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1872833599] [2020-10-14 05:36:25,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:36:25,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:25,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:25,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:25,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:26,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:26,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 05:36:26,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:36:26,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1051 [2020-10-14 05:36:26,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:26,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:26,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:36:26,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:36:26,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:36:26,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:26,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:36:26,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:26,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:26,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:26,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:36:26,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:36:26,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:36:26,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:26,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:26,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:36:26,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:36:26,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:36:26,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:26,294 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-14 05:36:26,294 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1872833599] [2020-10-14 05:36:26,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:36:26,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 05:36:26,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063246327] [2020-10-14 05:36:26,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 05:36:26,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:36:26,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 05:36:26,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:36:26,296 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand 6 states. [2020-10-14 05:36:26,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:36:26,384 INFO L93 Difference]: Finished difference Result 52 states and 56 transitions. [2020-10-14 05:36:26,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 05:36:26,385 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-10-14 05:36:26,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:36:26,385 INFO L225 Difference]: With dead ends: 52 [2020-10-14 05:36:26,386 INFO L226 Difference]: Without dead ends: 33 [2020-10-14 05:36:26,386 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:36:26,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-14 05:36:26,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2020-10-14 05:36:26,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-14 05:36:26,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2020-10-14 05:36:26,392 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 25 [2020-10-14 05:36:26,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:36:26,392 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2020-10-14 05:36:26,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 05:36:26,393 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2020-10-14 05:36:26,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-14 05:36:26,393 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:36:26,394 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:36:26,394 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 05:36:26,394 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:36:26,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:36:26,395 INFO L82 PathProgramCache]: Analyzing trace with hash -657216102, now seen corresponding path program 5 times [2020-10-14 05:36:26,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:36:26,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [76166487] [2020-10-14 05:36:26,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:36:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:26,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:26,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:26,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:27,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:27,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 05:36:27,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:36:27,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1101 [2020-10-14 05:36:27,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:27,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:27,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 05:36:27,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:36:27,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 05:36:27,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:27,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:36:27,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:27,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:27,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:27,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:36:27,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:36:27,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:36:27,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:27,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:27,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:36:27,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:36:27,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:36:27,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:27,630 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-14 05:36:27,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [76166487] [2020-10-14 05:36:27,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:36:27,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 05:36:27,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96853786] [2020-10-14 05:36:27,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 05:36:27,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:36:27,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 05:36:27,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 05:36:27,633 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand 8 states. [2020-10-14 05:36:27,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:36:27,810 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2020-10-14 05:36:27,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 05:36:27,810 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2020-10-14 05:36:27,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:36:27,811 INFO L225 Difference]: With dead ends: 46 [2020-10-14 05:36:27,811 INFO L226 Difference]: Without dead ends: 35 [2020-10-14 05:36:27,812 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-14 05:36:27,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-14 05:36:27,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2020-10-14 05:36:27,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-14 05:36:27,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2020-10-14 05:36:27,818 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 27 [2020-10-14 05:36:27,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:36:27,818 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2020-10-14 05:36:27,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 05:36:27,818 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2020-10-14 05:36:27,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-14 05:36:27,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:36:27,819 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:36:27,819 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 05:36:27,820 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:36:27,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:36:27,820 INFO L82 PathProgramCache]: Analyzing trace with hash -194529672, now seen corresponding path program 6 times [2020-10-14 05:36:27,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:36:27,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1417344541] [2020-10-14 05:36:27,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:36:27,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:27,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:27,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:27,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:30,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:30,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 05:36:30,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:36:30,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2910 [2020-10-14 05:36:30,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:30,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:30,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 05:36:30,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:36:30,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 05:36:30,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:30,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:36:30,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:30,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:30,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:30,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:36:30,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:36:30,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:36:30,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:30,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:30,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:36:30,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:36:30,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:36:30,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:30,875 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-14 05:36:30,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1417344541] [2020-10-14 05:36:30,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:36:30,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 05:36:30,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578588638] [2020-10-14 05:36:30,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 05:36:30,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:36:30,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 05:36:30,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-14 05:36:30,883 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand 9 states. [2020-10-14 05:36:31,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:36:31,175 INFO L93 Difference]: Finished difference Result 66 states and 74 transitions. [2020-10-14 05:36:31,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 05:36:31,175 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-14 05:36:31,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:36:31,179 INFO L225 Difference]: With dead ends: 66 [2020-10-14 05:36:31,179 INFO L226 Difference]: Without dead ends: 55 [2020-10-14 05:36:31,180 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2020-10-14 05:36:31,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-14 05:36:31,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 36. [2020-10-14 05:36:31,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-14 05:36:31,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2020-10-14 05:36:31,201 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 29 [2020-10-14 05:36:31,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:36:31,202 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2020-10-14 05:36:31,202 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 05:36:31,202 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2020-10-14 05:36:31,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-14 05:36:31,205 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:36:31,206 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:36:31,206 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 05:36:31,206 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:36:31,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:36:31,207 INFO L82 PathProgramCache]: Analyzing trace with hash 2065498070, now seen corresponding path program 7 times [2020-10-14 05:36:31,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:36:31,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2028808445] [2020-10-14 05:36:31,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:36:31,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:31,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:31,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:31,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:31,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:34,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:34,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-14 05:36:34,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 05:36:34,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3187 [2020-10-14 05:36:34,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:34,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:34,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:36:34,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:36:34,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 05:36:34,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:34,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:36:34,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:34,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:34,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:34,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:36:34,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:36:34,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:36:34,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:34,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:34,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:36:34,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:36:34,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:36:34,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:34,599 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-14 05:36:34,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2028808445] [2020-10-14 05:36:34,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:36:34,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 05:36:34,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002151057] [2020-10-14 05:36:34,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 05:36:34,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:36:34,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 05:36:34,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 05:36:34,602 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand 7 states. [2020-10-14 05:36:34,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:36:34,721 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2020-10-14 05:36:34,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 05:36:34,721 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2020-10-14 05:36:34,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:36:34,722 INFO L225 Difference]: With dead ends: 62 [2020-10-14 05:36:34,722 INFO L226 Difference]: Without dead ends: 39 [2020-10-14 05:36:34,723 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 05:36:34,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-14 05:36:34,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2020-10-14 05:36:34,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-14 05:36:34,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2020-10-14 05:36:34,729 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 31 [2020-10-14 05:36:34,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:36:34,729 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2020-10-14 05:36:34,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 05:36:34,729 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2020-10-14 05:36:34,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-14 05:36:34,730 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:36:34,730 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:36:34,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 05:36:34,730 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:36:34,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:36:34,731 INFO L82 PathProgramCache]: Analyzing trace with hash 469174772, now seen corresponding path program 8 times [2020-10-14 05:36:34,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:36:34,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [67462526] [2020-10-14 05:36:34,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:36:34,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:34,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:34,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:35,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:36,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:39,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:39,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 05:36:39,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 05:36:39,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4388 [2020-10-14 05:36:39,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:39,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:39,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 05:36:39,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:36:39,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 05:36:39,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:39,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:36:39,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:39,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:39,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:39,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:36:39,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:36:39,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:36:39,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:39,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:39,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:36:39,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:36:39,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:36:39,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:39,277 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-14 05:36:39,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [67462526] [2020-10-14 05:36:39,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:36:39,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 05:36:39,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995850156] [2020-10-14 05:36:39,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 05:36:39,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:36:39,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 05:36:39,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 05:36:39,280 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand 8 states. [2020-10-14 05:36:39,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:36:39,382 INFO L93 Difference]: Finished difference Result 64 states and 68 transitions. [2020-10-14 05:36:39,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 05:36:39,382 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2020-10-14 05:36:39,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:36:39,383 INFO L225 Difference]: With dead ends: 64 [2020-10-14 05:36:39,384 INFO L226 Difference]: Without dead ends: 41 [2020-10-14 05:36:39,384 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 05:36:39,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-14 05:36:39,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2020-10-14 05:36:39,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-14 05:36:39,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2020-10-14 05:36:39,390 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 33 [2020-10-14 05:36:39,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:36:39,391 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2020-10-14 05:36:39,391 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 05:36:39,391 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2020-10-14 05:36:39,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-14 05:36:39,392 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:36:39,392 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:36:39,392 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 05:36:39,392 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:36:39,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:36:39,393 INFO L82 PathProgramCache]: Analyzing trace with hash -294189934, now seen corresponding path program 9 times [2020-10-14 05:36:39,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:36:39,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2084827657] [2020-10-14 05:36:39,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:36:39,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:39,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:39,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:40,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:40,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:40,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-14 05:36:40,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:36:40,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1467 [2020-10-14 05:36:40,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:40,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:40,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 05:36:40,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:36:40,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 05:36:40,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:41,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:36:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:41,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:41,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:41,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:36:41,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:36:41,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:36:41,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:41,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:41,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:36:41,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:36:41,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:36:41,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:41,860 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-14 05:36:41,861 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2084827657] [2020-10-14 05:36:41,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:36:41,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-14 05:36:41,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063165163] [2020-10-14 05:36:41,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 05:36:41,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:36:41,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 05:36:41,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2020-10-14 05:36:41,865 INFO L87 Difference]: Start difference. First operand 40 states and 42 transitions. Second operand 16 states. [2020-10-14 05:36:43,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:36:43,972 INFO L93 Difference]: Finished difference Result 83 states and 94 transitions. [2020-10-14 05:36:43,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-14 05:36:43,973 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 35 [2020-10-14 05:36:43,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:36:43,974 INFO L225 Difference]: With dead ends: 83 [2020-10-14 05:36:43,974 INFO L226 Difference]: Without dead ends: 81 [2020-10-14 05:36:43,976 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=177, Invalid=1083, Unknown=0, NotChecked=0, Total=1260 [2020-10-14 05:36:43,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-10-14 05:36:43,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 49. [2020-10-14 05:36:43,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-14 05:36:43,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 52 transitions. [2020-10-14 05:36:43,998 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 52 transitions. Word has length 35 [2020-10-14 05:36:43,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:36:43,998 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 52 transitions. [2020-10-14 05:36:43,998 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-14 05:36:43,999 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 52 transitions. [2020-10-14 05:36:44,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-14 05:36:44,001 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:36:44,001 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:36:44,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 05:36:44,001 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:36:44,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:36:44,002 INFO L82 PathProgramCache]: Analyzing trace with hash 781266800, now seen corresponding path program 10 times [2020-10-14 05:36:44,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:36:44,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1887229280] [2020-10-14 05:36:44,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:36:44,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:44,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:44,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:44,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:45,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:45,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-14 05:36:45,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:36:45,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1289 [2020-10-14 05:36:45,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:45,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:45,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 05:36:45,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:36:45,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 05:36:45,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:45,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:36:45,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:45,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:45,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:45,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:36:45,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:36:45,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:36:45,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:45,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:45,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:36:45,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:36:45,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:36:45,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:45,457 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-14 05:36:45,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1887229280] [2020-10-14 05:36:45,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:36:45,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 05:36:45,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198091253] [2020-10-14 05:36:45,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 05:36:45,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:36:45,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 05:36:45,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-14 05:36:45,461 INFO L87 Difference]: Start difference. First operand 49 states and 52 transitions. Second operand 10 states. [2020-10-14 05:36:45,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:36:45,817 INFO L93 Difference]: Finished difference Result 78 states and 85 transitions. [2020-10-14 05:36:45,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 05:36:45,818 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 37 [2020-10-14 05:36:45,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:36:45,819 INFO L225 Difference]: With dead ends: 78 [2020-10-14 05:36:45,819 INFO L226 Difference]: Without dead ends: 65 [2020-10-14 05:36:45,820 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=154, Unknown=0, NotChecked=0, Total=240 [2020-10-14 05:36:45,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-14 05:36:45,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 46. [2020-10-14 05:36:45,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-14 05:36:45,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2020-10-14 05:36:45,835 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 37 [2020-10-14 05:36:45,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:36:45,835 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2020-10-14 05:36:45,836 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 05:36:45,836 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2020-10-14 05:36:45,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-14 05:36:45,839 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:36:45,839 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:36:45,839 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 05:36:45,839 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:36:45,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:36:45,840 INFO L82 PathProgramCache]: Analyzing trace with hash 885326793, now seen corresponding path program 1 times [2020-10-14 05:36:45,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:36:45,841 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [10944850] [2020-10-14 05:36:45,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:36:45,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:45,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:46,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:46,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:48,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:48,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 05:36:48,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:36:48,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2532 [2020-10-14 05:36:48,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:48,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:48,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 05:36:48,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:36:48,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 05:36:48,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:36:48,669 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 32 [2020-10-14 05:36:48,910 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2020-10-14 05:36:49,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:36:49,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:49,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:49,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:49,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:36:49,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:36:49,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:36:49,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:49,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:49,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:36:49,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:36:49,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:36:49,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:49,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 05:36:49,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:49,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:49,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:49,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:36:49,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:36:49,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 05:36:49,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:49,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:49,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:36:49,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:36:49,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:36:49,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:49,877 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 2 proven. 27 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-14 05:36:49,878 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [10944850] [2020-10-14 05:36:49,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:36:49,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-14 05:36:49,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444844430] [2020-10-14 05:36:49,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 05:36:49,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:36:49,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 05:36:49,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=306, Unknown=0, NotChecked=0, Total=342 [2020-10-14 05:36:49,881 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand 19 states. [2020-10-14 05:36:51,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:36:51,815 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2020-10-14 05:36:51,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 05:36:51,816 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 43 [2020-10-14 05:36:51,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:36:51,817 INFO L225 Difference]: With dead ends: 57 [2020-10-14 05:36:51,817 INFO L226 Difference]: Without dead ends: 55 [2020-10-14 05:36:51,818 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=117, Invalid=1073, Unknown=0, NotChecked=0, Total=1190 [2020-10-14 05:36:51,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-14 05:36:51,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2020-10-14 05:36:51,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-14 05:36:51,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2020-10-14 05:36:51,829 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 43 [2020-10-14 05:36:51,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:36:51,829 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2020-10-14 05:36:51,829 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 05:36:51,829 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2020-10-14 05:36:51,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-14 05:36:51,830 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:36:51,830 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:36:51,830 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 05:36:51,831 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:36:51,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:36:51,831 INFO L82 PathProgramCache]: Analyzing trace with hash -480781312, now seen corresponding path program 2 times [2020-10-14 05:36:51,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:36:51,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2044779505] [2020-10-14 05:36:51,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:36:51,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:51,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:51,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:52,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:54,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:54,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-14 05:36:54,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:36:54,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2974 [2020-10-14 05:36:54,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:54,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:54,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 05:36:54,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:36:54,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-14 05:36:54,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:56,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:36:56,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:56,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:56,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:56,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:36:56,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:36:56,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:36:56,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:56,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:56,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:36:56,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:36:56,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:36:56,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:56,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 05:36:56,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:56,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:56,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:56,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:36:56,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:36:56,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:36:56,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:56,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:56,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:36:56,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:36:56,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:36:56,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:56,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 05:36:56,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:56,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:56,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:56,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:36:56,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:36:56,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:36:56,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:56,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:56,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:36:56,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:36:56,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:36:56,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:56,083 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 4 proven. 33 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-10-14 05:36:56,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2044779505] [2020-10-14 05:36:56,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:36:56,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-14 05:36:56,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699764684] [2020-10-14 05:36:56,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-14 05:36:56,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:36:56,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-14 05:36:56,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=419, Unknown=0, NotChecked=0, Total=462 [2020-10-14 05:36:56,086 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 22 states. [2020-10-14 05:36:58,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:36:58,584 INFO L93 Difference]: Finished difference Result 65 states and 66 transitions. [2020-10-14 05:36:58,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-14 05:36:58,585 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 51 [2020-10-14 05:36:58,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:36:58,586 INFO L225 Difference]: With dead ends: 65 [2020-10-14 05:36:58,586 INFO L226 Difference]: Without dead ends: 63 [2020-10-14 05:36:58,587 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=216, Invalid=1676, Unknown=0, NotChecked=0, Total=1892 [2020-10-14 05:36:58,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-14 05:36:58,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 62. [2020-10-14 05:36:58,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-10-14 05:36:58,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 63 transitions. [2020-10-14 05:36:58,601 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 63 transitions. Word has length 51 [2020-10-14 05:36:58,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:36:58,601 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 63 transitions. [2020-10-14 05:36:58,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-14 05:36:58,601 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 63 transitions. [2020-10-14 05:36:58,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-14 05:36:58,602 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:36:58,602 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:36:58,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 05:36:58,603 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:36:58,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:36:58,603 INFO L82 PathProgramCache]: Analyzing trace with hash 2017889591, now seen corresponding path program 3 times [2020-10-14 05:36:58,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:36:58,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [627818276] [2020-10-14 05:36:58,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:36:58,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:58,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:58,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:59,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:37:00,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:37:00,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 05:37:00,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:37:00,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2201 [2020-10-14 05:37:00,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:37:00,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:37:00,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 05:37:00,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:37:00,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 05:37:00,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:37:01,540 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2020-10-14 05:37:01,699 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2020-10-14 05:37:02,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:37:02,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:37:02,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:37:02,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:37:02,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:37:02,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:37:02,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:37:02,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:37:02,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:37:02,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:37:02,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:37:02,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:37:02,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:37:02,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 05:37:02,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:37:02,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:37:02,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:37:02,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:37:02,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:37:02,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:37:02,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:37:02,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:37:02,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:37:02,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:37:02,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:37:02,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:37:02,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 05:37:02,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:37:02,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:37:02,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:37:02,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:37:02,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:37:02,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:37:02,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:37:02,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:37:02,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:37:02,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:37:02,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:37:02,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:37:02,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 05:37:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:37:02,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:37:02,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:37:02,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:37:02,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:37:02,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:37:02,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:37:02,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:37:02,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:37:02,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:37:02,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:37:02,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:37:02,546 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 43 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2020-10-14 05:37:02,546 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [627818276] [2020-10-14 05:37:02,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:37:02,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-14 05:37:02,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257595202] [2020-10-14 05:37:02,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-14 05:37:02,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:37:02,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-14 05:37:02,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=548, Unknown=0, NotChecked=0, Total=600 [2020-10-14 05:37:02,549 INFO L87 Difference]: Start difference. First operand 62 states and 63 transitions. Second operand 25 states. [2020-10-14 05:37:02,759 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 44 [2020-10-14 05:37:03,117 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2020-10-14 05:37:04,596 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 46 [2020-10-14 05:37:04,771 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 40 [2020-10-14 05:37:06,430 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 45 [2020-10-14 05:37:06,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:37:06,534 INFO L93 Difference]: Finished difference Result 78 states and 80 transitions. [2020-10-14 05:37:06,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-14 05:37:06,535 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 59 [2020-10-14 05:37:06,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:37:06,536 INFO L225 Difference]: With dead ends: 78 [2020-10-14 05:37:06,537 INFO L226 Difference]: Without dead ends: 76 [2020-10-14 05:37:06,538 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=365, Invalid=2287, Unknown=0, NotChecked=0, Total=2652 [2020-10-14 05:37:06,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-10-14 05:37:06,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 70. [2020-10-14 05:37:06,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-14 05:37:06,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2020-10-14 05:37:06,551 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 59 [2020-10-14 05:37:06,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:37:06,551 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2020-10-14 05:37:06,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-14 05:37:06,551 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2020-10-14 05:37:06,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 05:37:06,552 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:37:06,552 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:37:06,552 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 05:37:06,553 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:37:06,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:37:06,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1789400942, now seen corresponding path program 4 times [2020-10-14 05:37:06,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:37:06,553 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1451727643] [2020-10-14 05:37:06,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:37:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:37:06,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:37:06,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:37:08,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:37:08,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-14 05:37:08,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:37:08,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2311 [2020-10-14 05:37:08,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:37:08,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:37:08,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 05:37:08,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:37:08,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 05:37:08,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:37:09,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:37:09,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:37:09,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:37:09,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:37:09,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:37:09,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:37:09,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:37:09,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:37:09,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:37:09,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:37:09,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:37:09,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:37:09,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:37:09,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 05:37:09,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:37:09,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:37:09,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:37:09,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:37:09,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:37:09,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:37:09,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:37:09,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:37:09,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:37:09,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:37:09,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:37:09,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:37:09,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 05:37:09,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:37:09,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:37:09,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:37:09,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:37:09,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:37:09,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:37:09,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:37:09,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:37:09,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:37:09,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:37:09,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:37:09,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:37:09,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 05:37:09,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:37:09,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:37:09,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:37:09,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:37:09,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:37:09,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:37:09,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:37:09,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:37:09,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:37:09,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:37:09,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:37:09,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:37:09,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 05:37:09,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:37:09,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:37:09,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:37:09,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:37:09,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:37:09,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:37:09,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:37:09,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:37:09,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:37:09,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:37:09,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:37:09,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:37:09,937 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 8 proven. 57 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2020-10-14 05:37:09,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1451727643] [2020-10-14 05:37:09,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:37:09,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-14 05:37:09,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99468544] [2020-10-14 05:37:09,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-14 05:37:09,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:37:09,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-14 05:37:09,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2020-10-14 05:37:09,939 INFO L87 Difference]: Start difference. First operand 70 states and 71 transitions. Second operand 22 states. [2020-10-14 05:37:12,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:37:12,032 INFO L93 Difference]: Finished difference Result 81 states and 82 transitions. [2020-10-14 05:37:12,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 05:37:12,034 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 67 [2020-10-14 05:37:12,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:37:12,035 INFO L225 Difference]: With dead ends: 81 [2020-10-14 05:37:12,035 INFO L226 Difference]: Without dead ends: 79 [2020-10-14 05:37:12,037 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=168, Invalid=1472, Unknown=0, NotChecked=0, Total=1640 [2020-10-14 05:37:12,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-10-14 05:37:12,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2020-10-14 05:37:12,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-14 05:37:12,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 79 transitions. [2020-10-14 05:37:12,058 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 79 transitions. Word has length 67 [2020-10-14 05:37:12,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:37:12,058 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 79 transitions. [2020-10-14 05:37:12,058 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-14 05:37:12,058 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 79 transitions. [2020-10-14 05:37:12,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-14 05:37:12,060 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:37:12,060 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:37:12,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 05:37:12,060 INFO L427 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:37:12,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:37:12,061 INFO L82 PathProgramCache]: Analyzing trace with hash 714308261, now seen corresponding path program 5 times [2020-10-14 05:37:12,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:37:12,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [914139495] [2020-10-14 05:37:12,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:37:12,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:37:12,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:37:12,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:37:12,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:37:12,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:37:12,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:37:12,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:37:12,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:37:13,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:37:13,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:37:14,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:37:14,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:37:14,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:37:17,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:37:17,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 05:37:17,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-14 05:37:17,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 05:37:17,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:37:17,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:37:17,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 05:37:17,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:37:17,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 05:37:17,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:37:23,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:37:23,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:37:23,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:37:23,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:37:23,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:37:23,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:37:23,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:37:23,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:37:23,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:37:23,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:37:23,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:37:23,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:37:23,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:37:23,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 05:37:23,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:37:23,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:37:23,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:37:23,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:37:23,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:37:23,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:37:23,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:37:23,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:37:23,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:37:23,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:37:23,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:37:23,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:37:23,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 05:37:23,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:37:23,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:37:23,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:37:23,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:37:23,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:37:23,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:37:23,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:37:23,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:37:23,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:37:23,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:37:23,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:37:23,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:37:23,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 05:37:23,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:37:23,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:37:23,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:37:23,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:37:23,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:37:23,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:37:23,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:37:23,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:37:23,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:37:23,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:37:23,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:37:23,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:37:23,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 05:37:23,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:37:23,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:37:23,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:37:23,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:37:23,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:37:23,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:37:23,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:37:23,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:37:23,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:37:23,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:37:23,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:37:23,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:37:23,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 05:37:23,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:37:23,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:37:23,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:37:23,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:37:23,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:37:23,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:37:23,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:37:23,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:37:23,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:37:23,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:37:23,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:37:23,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:37:23,727 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 15 proven. 39 refuted. 6 times theorem prover too weak. 90 trivial. 0 not checked. [2020-10-14 05:37:23,729 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [914139495] [2020-10-14 05:37:23,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:37:23,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 05:37:23,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972726639] [2020-10-14 05:37:23,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 05:37:23,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:37:23,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 05:37:23,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=70, Unknown=3, NotChecked=0, Total=90 [2020-10-14 05:37:23,734 INFO L87 Difference]: Start difference. First operand 78 states and 79 transitions. Second operand 10 states. [2020-10-14 05:37:24,575 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 28 [2020-10-14 05:37:24,833 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 25 [2020-10-14 05:37:25,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:37:25,255 INFO L93 Difference]: Finished difference Result 134 states and 136 transitions. [2020-10-14 05:37:25,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 05:37:25,256 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 75 [2020-10-14 05:37:25,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:37:25,257 INFO L225 Difference]: With dead ends: 134 [2020-10-14 05:37:25,257 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 05:37:25,258 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=107, Invalid=270, Unknown=3, NotChecked=0, Total=380 [2020-10-14 05:37:25,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 05:37:25,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 05:37:25,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 05:37:25,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 05:37:25,259 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 75 [2020-10-14 05:37:25,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:37:25,259 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 05:37:25,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 05:37:25,259 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 05:37:25,259 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 05:37:25,259 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 05:37:25,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 05:37:25,482 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 235 [2020-10-14 05:37:25,752 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 234 [2020-10-14 05:37:35,049 WARN L193 SmtUtils]: Spent 9.22 s on a formula simplification. DAG size of input: 235 DAG size of output: 159 [2020-10-14 05:37:50,103 WARN L193 SmtUtils]: Spent 15.04 s on a formula simplification. DAG size of input: 128 DAG size of output: 53 [2020-10-14 05:37:53,950 WARN L193 SmtUtils]: Spent 3.83 s on a formula simplification. DAG size of input: 234 DAG size of output: 156 [2020-10-14 05:37:55,437 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 225 DAG size of output: 137 [2020-10-14 05:37:55,441 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-14 05:37:55,442 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-14 05:37:55,442 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-14 05:37:55,442 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-14 05:37:55,442 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-14 05:37:55,442 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-14 05:37:55,442 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-14 05:37:55,443 INFO L264 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: (let ((.cse1 (select |#memory_int| |main_~#str1~0.base|))) (let ((.cse2 (select |#memory_int| |main_~#str2~0.base|)) (.cse6 (+ main_~j~0 |main_~#str2~0.offset|)) (.cse31 (select .cse1 (+ |main_~#str1~0.offset| main_~i~0))) (.cse14 (+ |main_~#str1~0.offset| main_~i~0 1))) (let ((.cse15 (+ |main_~#str1~0.offset| 3)) (.cse13 (select .cse1 .cse14)) (.cse27 (store .cse2 .cse6 .cse31)) (.cse30 (+ main_~max~0 |main_~#str2~0.offset|)) (.cse26 (+ |main_~#str1~0.offset| 2)) (.cse17 (+ |main_~#str1~0.offset| 1)) (.cse25 (* (div (+ main_~max~0 4294967295) 4294967296) (- 4294967296))) (.cse32 (div main_~max~0 4294967296))) (let ((.cse19 (* .cse32 4294967296)) (.cse20 (* main_~max~0 (- 2))) (.cse16 (<= |main_~#str1~0.offset| 0)) (.cse18 (= (select .cse1 .cse17) (select .cse2 (+ main_~max~0 |main_~#str2~0.offset| .cse25 4294967294)))) (.cse21 (= (select .cse1 .cse26) (select .cse2 .cse26))) (.cse4 (<= 5 .cse30)) (.cse23 (<= (+ main_~i~0 (* 4294967296 .cse32) 6) (+ (* 2 main_~max~0) (* 4294967296 (div main_~i~0 4294967296))))) (.cse12 (<= (+ |main_~#str2~0.offset| 5) (+ |main_~#str1~0.offset| main_~max~0))) (.cse0 (not (= |main_~#str1~0.base| |main_~#str2~0.base|))) (.cse28 (select (store |#memory_int| |main_~#str2~0.base| .cse27) |main_~#str1~0.base|)) (.cse5 (+ |main_~#str1~0.offset| main_~i~0 2)) (.cse3 (<= main_~max~0 5)) (.cse22 (= (select .cse2 (+ main_~j~0 |main_~#str2~0.offset| (- 1))) .cse13)) (.cse7 (<= 5 main_~max~0)) (.cse8 (<= 0 main_~i~0)) (.cse29 (+ |main_~#str1~0.offset| 4)) (.cse9 (= (select .cse2 .cse6) .cse31)) (.cse10 (= |main_#t~mem7| |main_#t~mem6|)) (.cse24 (select .cse2 (+ main_~max~0 |main_~#str2~0.offset| (- 5)))) (.cse11 (= (select .cse1 .cse15) (select .cse2 1)))) (or (and .cse0 (= (select .cse1 (+ |main_~#str1~0.offset| main_~i~0 3)) (select .cse2 (+ main_~j~0 |main_~#str2~0.offset| (- 3)))) .cse3 .cse4 (= .cse5 .cse6) (<= .cse6 3) .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 (= .cse13 (select .cse2 .cse14)) (<= .cse15 .cse6)) (and .cse16 .cse0 (<= .cse17 .cse6) .cse18 .cse3 (<= (+ main_~max~0 (* 4294967296 (div (+ main_~i~0 .cse19 .cse20 4294967298) 4294967296))) (+ main_~i~0 2)) .cse21 .cse4 .cse22 (<= .cse6 .cse17) .cse7 .cse8 .cse9 .cse10 .cse11 .cse23 .cse12 (= .cse24 (select .cse1 (+ main_~j~0 |main_~#str2~0.offset| .cse25 4294967299)))) (and (<= .cse6 .cse26) .cse16 .cse0 (= (select .cse2 (+ main_~j~0 |main_~#str2~0.offset| (- 2))) (select .cse1 .cse5)) (<= .cse26 .cse6) .cse18 .cse3 (= (select .cse1 (+ main_~j~0 |main_~#str2~0.offset| .cse25 4294967298)) .cse24) .cse21 .cse4 (= (select .cse27 .cse17) (select .cse28 (+ main_~i~0 main_~j~0 |main_~#str2~0.offset| (- 1)))) .cse7 (<= (+ main_~max~0 (* 4294967296 (div (+ main_~i~0 .cse19 .cse20 4294967299) 4294967296))) (+ main_~i~0 3)) .cse8 .cse9 .cse10 .cse11 .cse23 .cse12) (and (= .cse24 (select .cse1 .cse29)) (<= (+ (* 4294967296 (div (+ main_~i~0 .cse19 .cse20 4294967297) 4294967296)) main_~max~0) (+ main_~i~0 1)) .cse16 .cse0 .cse18 .cse3 .cse21 .cse4 .cse7 .cse8 .cse9 .cse10 .cse11 .cse23 .cse12) (and .cse0 (= (select .cse28 .cse5) (select .cse27 .cse26)) (<= (+ |main_~#str1~0.offset| 5) .cse30) .cse3 (<= 4 .cse6) .cse22 (= (+ |main_~#str1~0.offset| main_~i~0 4) .cse6) .cse7 .cse8 (<= .cse6 4) (<= .cse6 .cse29) .cse9 .cse10 (<= main_~max~0 (+ main_~j~0 1)) (= .cse24 (select .cse1 .cse6)) .cse11)))))) [2020-10-14 05:37:55,443 INFO L268 CegarLoopResult]: For program point L31-1(line 31) no Hoare annotation was computed. [2020-10-14 05:37:55,444 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 34) no Hoare annotation was computed. [2020-10-14 05:37:55,444 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 11 34) no Hoare annotation was computed. [2020-10-14 05:37:55,444 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 11 34) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-10-14 05:37:55,444 INFO L268 CegarLoopResult]: For program point L30-2(lines 30 33) no Hoare annotation was computed. [2020-10-14 05:37:55,445 INFO L264 CegarLoopResult]: At program point L30-3(lines 30 33) the Hoare annotation is: (let ((.cse5 (select |#memory_int| |main_~#str1~0.base|))) (let ((.cse25 (div main_~max~0 4294967296)) (.cse4 (select |#memory_int| |main_~#str2~0.base|)) (.cse0 (+ main_~j~0 |main_~#str2~0.offset|)) (.cse32 (select .cse5 (+ |main_~#str1~0.offset| main_~i~0))) (.cse30 (+ |main_~#str1~0.offset| main_~i~0 1))) (let ((.cse31 (+ |main_~#str1~0.offset| 3)) (.cse27 (+ main_~max~0 |main_~#str2~0.offset|)) (.cse29 (select .cse5 .cse30)) (.cse13 (store .cse4 .cse0 .cse32)) (.cse17 (* .cse25 4294967296)) (.cse18 (* main_~max~0 (- 2))) (.cse1 (+ |main_~#str1~0.offset| 2)) (.cse14 (+ |main_~#str1~0.offset| 1)) (.cse9 (* (div (+ main_~max~0 4294967295) 4294967296) (- 4294967296))) (.cse10 (select .cse4 (+ main_~max~0 |main_~#str2~0.offset| (- 5)))) (.cse28 (+ |main_~#str1~0.offset| 4))) (let ((.cse24 (= .cse10 (select .cse5 .cse28))) (.cse2 (<= |main_~#str1~0.offset| 0)) (.cse7 (= (select .cse5 .cse14) (select .cse4 (+ main_~max~0 |main_~#str2~0.offset| .cse9 4294967294)))) (.cse11 (= (select .cse5 .cse1) (select .cse4 .cse1))) (.cse21 (<= (+ main_~max~0 (* 4294967296 (div (+ main_~i~0 .cse17 .cse18 4294967300) 4294967296))) (+ main_~i~0 4))) (.cse15 (select (store |#memory_int| |main_~#str2~0.base| .cse13) |main_~#str1~0.base|)) (.cse26 (= (select .cse4 (+ main_~j~0 |main_~#str2~0.offset| (- 1))) .cse29)) (.cse3 (not (= |main_~#str1~0.base| |main_~#str2~0.base|))) (.cse8 (<= main_~max~0 5)) (.cse12 (<= 5 .cse27)) (.cse6 (+ |main_~#str1~0.offset| main_~i~0 2)) (.cse16 (<= 5 main_~max~0)) (.cse19 (<= 0 main_~i~0)) (.cse20 (= (select .cse4 .cse0) .cse32)) (.cse22 (= (select .cse5 .cse31) (select .cse4 1))) (.cse23 (<= (+ |main_~#str2~0.offset| 5) (+ |main_~#str1~0.offset| main_~max~0)))) (or (and (<= .cse0 .cse1) .cse2 .cse3 (= (select .cse4 (+ main_~j~0 |main_~#str2~0.offset| (- 2))) (select .cse5 .cse6)) (<= .cse1 .cse0) .cse7 .cse8 (= (select .cse5 (+ main_~j~0 |main_~#str2~0.offset| .cse9 4294967298)) .cse10) .cse11 .cse12 (= (select .cse13 .cse14) (select .cse15 (+ main_~i~0 main_~j~0 |main_~#str2~0.offset| (- 1)))) .cse16 (<= (+ main_~max~0 (* 4294967296 (div (+ main_~i~0 .cse17 .cse18 4294967299) 4294967296))) (+ main_~i~0 3)) .cse19 .cse20 .cse21 .cse22 .cse23) (and .cse24 (<= (+ main_~max~0 (* 4294967296 (div main_~i~0 4294967296))) (+ main_~i~0 (* 4294967296 .cse25))) .cse2 .cse3 .cse7 .cse8 .cse11 .cse12 .cse16 .cse19 .cse21 .cse22 .cse23) (and .cse24 (<= (+ (* 4294967296 (div (+ main_~i~0 .cse17 .cse18 4294967297) 4294967296)) main_~max~0) (+ main_~i~0 1)) .cse2 .cse3 .cse7 .cse8 .cse11 .cse12 .cse16 .cse19 .cse20 .cse21 .cse22 .cse23) (and .cse2 .cse3 (<= .cse14 .cse0) .cse7 .cse8 (<= (+ main_~max~0 (* 4294967296 (div (+ main_~i~0 .cse17 .cse18 4294967298) 4294967296))) (+ main_~i~0 2)) .cse11 .cse12 .cse26 (<= .cse0 .cse14) .cse16 .cse19 .cse20 .cse21 .cse22 .cse23 (= .cse10 (select .cse5 (+ main_~j~0 |main_~#str2~0.offset| .cse9 4294967299)))) (and .cse3 (= (select .cse15 .cse6) (select .cse13 .cse1)) (<= (+ |main_~#str1~0.offset| 5) .cse27) .cse8 (<= 4 .cse0) .cse26 (= (+ |main_~#str1~0.offset| main_~i~0 4) .cse0) .cse16 .cse19 (<= .cse0 4) (<= .cse0 .cse28) .cse20 (<= main_~max~0 (+ main_~j~0 1)) (= .cse10 (select .cse5 .cse0)) .cse22) (and .cse3 (= (select .cse5 (+ |main_~#str1~0.offset| main_~i~0 3)) (select .cse4 (+ main_~j~0 |main_~#str2~0.offset| (- 3)))) .cse8 .cse12 (= .cse6 .cse0) (<= .cse0 3) .cse16 .cse19 .cse20 .cse22 (= .cse29 (select .cse4 .cse30)) .cse23 (<= .cse31 .cse0))))))) [2020-10-14 05:37:55,445 INFO L268 CegarLoopResult]: For program point L30-4(lines 30 33) no Hoare annotation was computed. [2020-10-14 05:37:55,445 INFO L268 CegarLoopResult]: For program point L24-2(lines 24 27) no Hoare annotation was computed. [2020-10-14 05:37:55,445 INFO L264 CegarLoopResult]: At program point L24-3(lines 24 27) the Hoare annotation is: (let ((.cse19 (select |#memory_int| |main_~#str2~0.base|)) (.cse8 (+ main_~j~0 |main_~#str2~0.offset|)) (.cse2 (select |#memory_int| |main_~#str1~0.base|)) (.cse23 (div (+ main_~max~0 4294967295) 4294967296))) (let ((.cse25 (+ |main_~#str1~0.offset| main_~max~0)) (.cse24 (+ |main_~#str2~0.offset| 5)) (.cse18 (+ |main_~#str1~0.offset| 1)) (.cse3 (* .cse23 (- 4294967296))) (.cse22 (store .cse19 .cse8 (select .cse2 (+ |main_~#str1~0.offset| main_~i~0)))) (.cse21 (+ |main_~#str1~0.offset| 2))) (let ((.cse5 (select .cse22 .cse21)) (.cse9 (select .cse22 1)) (.cse17 (+ |main_~#str1~0.offset| 4)) (.cse6 (<= |main_~#str2~0.offset| |main_~#str1~0.offset|)) (.cse16 (= (select .cse2 .cse18) (select .cse19 (+ main_~max~0 |main_~#str2~0.offset| .cse3 4294967294)))) (.cse10 (+ |main_~#str1~0.offset| 3)) (.cse11 (<= .cse25 .cse24)) (.cse0 (<= |main_~#str1~0.offset| 0)) (.cse7 (select (store |#memory_int| |main_~#str2~0.base| .cse22) |main_~#str1~0.base|)) (.cse4 (not (= |main_~#str1~0.base| |main_~#str2~0.base|))) (.cse1 (select .cse19 (+ main_~max~0 |main_~#str2~0.offset| (- 5)))) (.cse15 (<= 5 (+ main_~max~0 |main_~#str2~0.offset|))) (.cse12 (<= |main_~#str1~0.offset| |main_~#str2~0.offset|)) (.cse13 (<= .cse24 .cse25)) (.cse14 (+ |main_~#str1~0.offset| main_~i~0 (* 4294967296 .cse23)))) (or (and .cse0 (= .cse1 (select .cse2 (+ main_~j~0 |main_~#str2~0.offset| .cse3 4294967297))) .cse4 (= .cse5 (select .cse2 (+ |main_~#str1~0.offset| main_~i~0 1))) .cse6 (= (select .cse7 .cse8) .cse9) (<= 3 .cse8) (= main_~i~0 1) (<= .cse8 .cse10) .cse11 .cse12 .cse13) (and .cse0 .cse4 (<= main_~max~0 5) (<= (+ main_~j~0 |main_~#str2~0.offset| 4294967300) .cse14) .cse15 (<= main_~max~0 (+ main_~j~0 5)) .cse13 (<= .cse14 (+ main_~max~0 |main_~#str2~0.offset| 4294967295))) (and .cse0 (<= main_~i~0 0) (= (select .cse7 (+ |main_~#str1~0.offset| main_~i~0 2)) .cse5) .cse4 .cse16 (= .cse9 (select .cse7 .cse10)) .cse15 (<= 0 main_~i~0) (<= .cse8 .cse17) (<= main_~max~0 (+ main_~j~0 1)) (= .cse1 (select .cse2 .cse8)) .cse12 .cse13) (and .cse0 (<= .cse8 .cse18) .cse4 .cse15 (<= .cse14 (+ main_~j~0 |main_~#str2~0.offset| 4294967298)) .cse12 .cse13 (= .cse1 (select .cse2 (+ main_~j~0 |main_~#str2~0.offset| .cse3 4294967299))) (<= (+ main_~max~0 |main_~#str2~0.offset| 4294967294) .cse14)) (let ((.cse20 (+ main_~i~0 1))) (and (= .cse1 (select .cse2 .cse17)) .cse0 (= (select .cse2 |main_~#str1~0.offset|) (select .cse19 (+ main_~max~0 |main_~#str2~0.offset| (- 1)))) .cse4 .cse6 .cse16 (<= 0 .cse20) (<= .cse20 0) (= (select .cse2 .cse21) (select .cse19 .cse21)) (= (select .cse2 .cse10) (select .cse19 1)) .cse11 .cse15)) (and .cse0 (= (select .cse22 .cse18) (select .cse7 (+ main_~i~0 main_~j~0 |main_~#str2~0.offset| (- 1)))) .cse4 (= (select .cse2 (+ main_~j~0 |main_~#str2~0.offset| .cse3 4294967298)) .cse1) (= (+ |main_~#str1~0.offset| main_~i~0 (* .cse23 4294967296)) (+ main_~max~0 |main_~#str2~0.offset| 4294967293)) (= .cse21 .cse8) .cse15 .cse12 .cse13 (<= .cse14 (+ main_~j~0 |main_~#str2~0.offset| 4294967296))))))) [2020-10-14 05:37:55,446 INFO L268 CegarLoopResult]: For program point L24-4(lines 24 27) no Hoare annotation was computed. [2020-10-14 05:37:55,446 INFO L268 CegarLoopResult]: For program point L16-2(lines 16 18) no Hoare annotation was computed. [2020-10-14 05:37:55,446 INFO L264 CegarLoopResult]: At program point L16-3(lines 16 18) the Hoare annotation is: (let ((.cse10 (+ |main_~#str1~0.offset| main_~max~0)) (.cse9 (+ |main_~#str2~0.offset| 5))) (let ((.cse2 (<= |main_~#str2~0.offset| |main_~#str1~0.offset|)) (.cse3 (<= .cse10 .cse9)) (.cse0 (<= |main_~#str1~0.offset| 0)) (.cse1 (not (= |main_~#str1~0.base| |main_~#str2~0.base|))) (.cse6 (<= main_~max~0 5)) (.cse7 (<= 3 main_~i~0)) (.cse4 (<= 5 (+ main_~max~0 |main_~#str2~0.offset|))) (.cse8 (<= .cse9 .cse10))) (or (and .cse0 .cse1 (= main_~i~0 0) .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 (<= main_~i~0 2) (< 0 main_~i~0) .cse3 .cse4) (let ((.cse5 (div main_~max~0 4294967296))) (and (<= (+ main_~max~0 (* 4294967296 (div main_~i~0 4294967296))) (+ main_~i~0 (* 4294967296 .cse5))) .cse0 .cse1 .cse6 (<= (+ main_~max~0 (* 4294967296 (div (+ main_~i~0 (* .cse5 4294967296) (* main_~max~0 (- 2)) 4294967300) 4294967296))) (+ main_~i~0 4)) .cse7 .cse4 .cse8)) (and .cse0 .cse1 .cse6 (<= (+ main_~i~0 1) main_~max~0) .cse7 .cse4 .cse8)))) [2020-10-14 05:37:55,446 INFO L268 CegarLoopResult]: For program point L16-4(lines 16 18) no Hoare annotation was computed. [2020-10-14 05:37:55,446 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-10-14 05:37:55,446 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-10-14 05:37:55,446 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-10-14 05:37:55,446 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-10-14 05:37:55,446 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-10-14 05:37:55,446 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-10-14 05:37:55,465 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,466 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,467 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,467 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,468 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,468 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,468 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,468 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,469 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,469 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,469 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,470 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,470 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,470 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,471 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,471 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,471 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,472 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,472 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,472 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,473 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,473 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,473 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,474 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,474 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,474 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,474 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,475 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,475 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,475 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,475 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,476 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,476 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,476 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,476 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,477 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,477 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,477 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,478 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,478 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,478 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,478 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,479 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,479 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,479 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,479 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,479 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,480 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,480 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,480 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,481 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,481 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,481 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,482 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,482 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,482 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,482 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,482 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,483 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,483 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,483 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,483 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,484 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,484 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,484 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,484 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,485 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,485 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,506 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,507 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,507 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,507 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,508 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,511 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,511 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,512 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,512 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,512 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,513 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,513 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,513 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,513 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,514 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,514 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,514 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,514 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,515 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,515 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,515 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,516 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,516 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,516 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,516 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,517 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,517 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,517 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,518 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,518 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,518 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,518 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,518 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,519 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,519 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,519 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,519 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,520 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,520 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,520 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,520 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,521 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,521 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,521 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,521 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,521 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,522 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,522 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,522 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,522 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,523 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,523 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,526 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,526 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,526 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,526 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,526 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,527 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,533 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,534 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,534 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,534 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,534 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,535 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,535 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,535 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,535 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,536 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,536 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,536 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,536 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,537 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,537 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,537 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,538 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,538 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,538 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,538 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,539 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,539 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,539 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,539 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,540 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,540 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,540 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,540 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,540 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,541 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,541 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,541 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,541 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,542 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,542 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,542 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,542 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,543 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,543 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,543 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,543 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,544 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,544 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,546 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,547 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,547 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,547 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,547 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,548 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,548 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,548 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,549 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,549 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,549 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,549 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,550 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,550 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,550 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,550 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,551 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,551 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,551 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,551 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,552 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,552 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,552 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,552 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,553 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,553 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,553 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,553 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,553 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,554 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,554 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,554 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,554 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,554 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,555 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,555 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,555 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,555 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,555 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,556 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,556 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,556 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,556 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 05:37:55 BoogieIcfgContainer [2020-10-14 05:37:55,559 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 05:37:55,561 INFO L168 Benchmark]: Toolchain (without parser) took 95778.39 ms. Allocated memory was 147.8 MB in the beginning and 717.8 MB in the end (delta: 569.9 MB). Free memory was 103.9 MB in the beginning and 425.3 MB in the end (delta: -321.3 MB). Peak memory consumption was 586.2 MB. Max. memory is 7.1 GB. [2020-10-14 05:37:55,562 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. [2020-10-14 05:37:55,562 INFO L168 Benchmark]: CACSL2BoogieTranslator took 345.22 ms. Allocated memory is still 147.8 MB. Free memory was 103.9 MB in the beginning and 93.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-10-14 05:37:55,563 INFO L168 Benchmark]: Boogie Preprocessor took 126.91 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 93.5 MB in the beginning and 181.9 MB in the end (delta: -88.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-10-14 05:37:55,563 INFO L168 Benchmark]: RCFGBuilder took 339.22 ms. Allocated memory is still 204.5 MB. Free memory was 181.9 MB in the beginning and 165.2 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. [2020-10-14 05:37:55,564 INFO L168 Benchmark]: TraceAbstraction took 94962.03 ms. Allocated memory was 204.5 MB in the beginning and 717.8 MB in the end (delta: 513.3 MB). Free memory was 165.2 MB in the beginning and 425.3 MB in the end (delta: -260.0 MB). Peak memory consumption was 590.9 MB. Max. memory is 7.1 GB. [2020-10-14 05:37:55,567 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 345.22 ms. Allocated memory is still 147.8 MB. Free memory was 103.9 MB in the beginning and 93.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.91 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 93.5 MB in the beginning and 181.9 MB in the end (delta: -88.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 339.22 ms. Allocated memory is still 204.5 MB. Free memory was 181.9 MB in the beginning and 165.2 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 94962.03 ms. Allocated memory was 204.5 MB in the beginning and 717.8 MB in the end (delta: 513.3 MB). Free memory was 165.2 MB in the beginning and 425.3 MB in the end (delta: -260.0 MB). Peak memory consumption was 590.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant [2020-10-14 05:37:55,584 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,585 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,585 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,585 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,585 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,586 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,586 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,586 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,586 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,586 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,587 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,587 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,587 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,587 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,588 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,588 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,588 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,588 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,588 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,589 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,589 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,589 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,589 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,589 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,590 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,590 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,590 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,590 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,590 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,591 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,591 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,591 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,591 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,591 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,592 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,592 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,592 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,592 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,593 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,593 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,593 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,593 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,593 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,594 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,594 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,594 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,594 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,594 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,594 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,595 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,595 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,595 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,595 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,596 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,596 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,596 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,596 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,596 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,596 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,597 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,597 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,597 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,597 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,597 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,598 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,598 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,598 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,598 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,600 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,601 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,601 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,601 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,601 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,602 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,602 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,602 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,602 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,603 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,603 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,603 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,603 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,603 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,604 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,604 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,604 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,604 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,604 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,605 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,605 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,605 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,605 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,606 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,606 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,606 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,606 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,606 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,607 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,607 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,607 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,607 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,607 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,608 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,608 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,608 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,608 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,608 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,609 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,609 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,609 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,609 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,609 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,610 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,610 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,610 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,610 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,610 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,610 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,611 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,611 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,611 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,611 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,612 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,612 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,612 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,612 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,612 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,613 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,613 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,613 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,613 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,613 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,613 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,614 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,614 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,614 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,614 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((((((((((((((((((((j + str2 <= str1 + 2 && str1 <= 0) && !(str1 == str2)) && unknown-#memory_int-unknown[str2][j + str2 + -2] == unknown-#memory_int-unknown[str1][str1 + i + 2]) && str1 + 2 <= j + str2) && unknown-#memory_int-unknown[str1][str1 + 1] == unknown-#memory_int-unknown[str2][max + str2 + (max + 4294967295) / 4294967296 * -4294967296 + 4294967294]) && max <= 5) && unknown-#memory_int-unknown[str1][j + str2 + (max + 4294967295) / 4294967296 * -4294967296 + 4294967298] == unknown-#memory_int-unknown[str2][max + str2 + -5]) && unknown-#memory_int-unknown[str1][str1 + 2] == unknown-#memory_int-unknown[str2][str1 + 2]) && 5 <= max + str2) && unknown-#memory_int-unknown[str2][j + str2 := unknown-#memory_int-unknown[str1][str1 + i]][str1 + 1] == unknown-#memory_int-unknown[str2 := unknown-#memory_int-unknown[str2][j + str2 := unknown-#memory_int-unknown[str1][str1 + i]]][str1][i + j + str2 + -1]) && 5 <= max) && max + 4294967296 * ((i + max / 4294967296 * 4294967296 + max * -2 + 4294967299) / 4294967296) <= i + 3) && 0 <= i) && unknown-#memory_int-unknown[str2][j + str2] == unknown-#memory_int-unknown[str1][str1 + i]) && max + 4294967296 * ((i + max / 4294967296 * 4294967296 + max * -2 + 4294967300) / 4294967296) <= i + 4) && unknown-#memory_int-unknown[str1][str1 + 3] == unknown-#memory_int-unknown[str2][1]) && str2 + 5 <= str1 + max) || ((((((((((((unknown-#memory_int-unknown[str2][max + str2 + -5] == unknown-#memory_int-unknown[str1][str1 + 4] && max + 4294967296 * (i / 4294967296) <= i + 4294967296 * (max / 4294967296)) && str1 <= 0) && !(str1 == str2)) && unknown-#memory_int-unknown[str1][str1 + 1] == unknown-#memory_int-unknown[str2][max + str2 + (max + 4294967295) / 4294967296 * -4294967296 + 4294967294]) && max <= 5) && unknown-#memory_int-unknown[str1][str1 + 2] == unknown-#memory_int-unknown[str2][str1 + 2]) && 5 <= max + str2) && 5 <= max) && 0 <= i) && max + 4294967296 * ((i + max / 4294967296 * 4294967296 + max * -2 + 4294967300) / 4294967296) <= i + 4) && unknown-#memory_int-unknown[str1][str1 + 3] == unknown-#memory_int-unknown[str2][1]) && str2 + 5 <= str1 + max)) || (((((((((((((unknown-#memory_int-unknown[str2][max + str2 + -5] == unknown-#memory_int-unknown[str1][str1 + 4] && 4294967296 * ((i + max / 4294967296 * 4294967296 + max * -2 + 4294967297) / 4294967296) + max <= i + 1) && str1 <= 0) && !(str1 == str2)) && unknown-#memory_int-unknown[str1][str1 + 1] == unknown-#memory_int-unknown[str2][max + str2 + (max + 4294967295) / 4294967296 * -4294967296 + 4294967294]) && max <= 5) && unknown-#memory_int-unknown[str1][str1 + 2] == unknown-#memory_int-unknown[str2][str1 + 2]) && 5 <= max + str2) && 5 <= max) && 0 <= i) && unknown-#memory_int-unknown[str2][j + str2] == unknown-#memory_int-unknown[str1][str1 + i]) && max + 4294967296 * ((i + max / 4294967296 * 4294967296 + max * -2 + 4294967300) / 4294967296) <= i + 4) && unknown-#memory_int-unknown[str1][str1 + 3] == unknown-#memory_int-unknown[str2][1]) && str2 + 5 <= str1 + max)) || ((((((((((((((((str1 <= 0 && !(str1 == str2)) && str1 + 1 <= j + str2) && unknown-#memory_int-unknown[str1][str1 + 1] == unknown-#memory_int-unknown[str2][max + str2 + (max + 4294967295) / 4294967296 * -4294967296 + 4294967294]) && max <= 5) && max + 4294967296 * ((i + max / 4294967296 * 4294967296 + max * -2 + 4294967298) / 4294967296) <= i + 2) && unknown-#memory_int-unknown[str1][str1 + 2] == unknown-#memory_int-unknown[str2][str1 + 2]) && 5 <= max + str2) && unknown-#memory_int-unknown[str2][j + str2 + -1] == unknown-#memory_int-unknown[str1][str1 + i + 1]) && j + str2 <= str1 + 1) && 5 <= max) && 0 <= i) && unknown-#memory_int-unknown[str2][j + str2] == unknown-#memory_int-unknown[str1][str1 + i]) && max + 4294967296 * ((i + max / 4294967296 * 4294967296 + max * -2 + 4294967300) / 4294967296) <= i + 4) && unknown-#memory_int-unknown[str1][str1 + 3] == unknown-#memory_int-unknown[str2][1]) && str2 + 5 <= str1 + max) && unknown-#memory_int-unknown[str2][max + str2 + -5] == unknown-#memory_int-unknown[str1][j + str2 + (max + 4294967295) / 4294967296 * -4294967296 + 4294967299])) || ((((((((((((((!(str1 == str2) && unknown-#memory_int-unknown[str2 := unknown-#memory_int-unknown[str2][j + str2 := unknown-#memory_int-unknown[str1][str1 + i]]][str1][str1 + i + 2] == unknown-#memory_int-unknown[str2][j + str2 := unknown-#memory_int-unknown[str1][str1 + i]][str1 + 2]) && str1 + 5 <= max + str2) && max <= 5) && 4 <= j + str2) && unknown-#memory_int-unknown[str2][j + str2 + -1] == unknown-#memory_int-unknown[str1][str1 + i + 1]) && str1 + i + 4 == j + str2) && 5 <= max) && 0 <= i) && j + str2 <= 4) && j + str2 <= str1 + 4) && unknown-#memory_int-unknown[str2][j + str2] == unknown-#memory_int-unknown[str1][str1 + i]) && max <= j + 1) && unknown-#memory_int-unknown[str2][max + str2 + -5] == unknown-#memory_int-unknown[str1][j + str2]) && unknown-#memory_int-unknown[str1][str1 + 3] == unknown-#memory_int-unknown[str2][1])) || ((((((((((((!(str1 == str2) && unknown-#memory_int-unknown[str1][str1 + i + 3] == unknown-#memory_int-unknown[str2][j + str2 + -3]) && max <= 5) && 5 <= max + str2) && str1 + i + 2 == j + str2) && j + str2 <= 3) && 5 <= max) && 0 <= i) && unknown-#memory_int-unknown[str2][j + str2] == unknown-#memory_int-unknown[str1][str1 + i]) && unknown-#memory_int-unknown[str1][str1 + 3] == unknown-#memory_int-unknown[str2][1]) && unknown-#memory_int-unknown[str1][str1 + i + 1] == unknown-#memory_int-unknown[str2][str1 + i + 1]) && str2 + 5 <= str1 + max) && str1 + 3 <= j + str2) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: (((((((str1 <= 0 && !(str1 == str2)) && i == 0) && str2 <= str1) && str1 + max <= str2 + 5) && 5 <= max + str2) || ((((((str1 <= 0 && !(str1 == str2)) && str2 <= str1) && i <= 2) && 0 < i) && str1 + max <= str2 + 5) && 5 <= max + str2)) || (((((((max + 4294967296 * (i / 4294967296) <= i + 4294967296 * (max / 4294967296) && str1 <= 0) && !(str1 == str2)) && max <= 5) && max + 4294967296 * ((i + max / 4294967296 * 4294967296 + max * -2 + 4294967300) / 4294967296) <= i + 4) && 3 <= i) && 5 <= max + str2) && str2 + 5 <= str1 + max)) || ((((((str1 <= 0 && !(str1 == str2)) && max <= 5) && i + 1 <= max) && 3 <= i) && 5 <= max + str2) && str2 + 5 <= str1 + max) - InvariantResult [Line: 24]: Loop Invariant [2020-10-14 05:37:55,617 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,617 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,617 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,618 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,618 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,618 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,618 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,619 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,619 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,619 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,619 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,619 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,620 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,620 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,620 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,620 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,621 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,621 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,621 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,621 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,622 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,622 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,622 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,622 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,622 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,623 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,623 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,623 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,623 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,624 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,624 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,624 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,624 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,624 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,624 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,625 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,625 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,625 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,625 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,625 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,626 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,626 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,626 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,628 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,628 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,628 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,629 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,629 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,629 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,629 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,630 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,630 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,630 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,630 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,631 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,631 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,631 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,631 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,632 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,632 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,632 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,632 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,632 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,633 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,633 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,633 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,633 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,634 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,634 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,634 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,634 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,634 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,635 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,635 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,635 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,635 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,635 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,635 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,636 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,636 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,636 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,636 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,636 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,637 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,637 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:37:55,637 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((((((((((((((str1 <= 0 && unknown-#memory_int-unknown[str2][max + str2 + -5] == unknown-#memory_int-unknown[str1][j + str2 + (max + 4294967295) / 4294967296 * -4294967296 + 4294967297]) && !(str1 == str2)) && unknown-#memory_int-unknown[str2][j + str2 := unknown-#memory_int-unknown[str1][str1 + i]][str1 + 2] == unknown-#memory_int-unknown[str1][str1 + i + 1]) && str2 <= str1) && unknown-#memory_int-unknown[str2 := unknown-#memory_int-unknown[str2][j + str2 := unknown-#memory_int-unknown[str1][str1 + i]]][str1][j + str2] == unknown-#memory_int-unknown[str2][j + str2 := unknown-#memory_int-unknown[str1][str1 + i]][1]) && 3 <= j + str2) && i == 1) && j + str2 <= str1 + 3) && str1 + max <= str2 + 5) && str1 <= str2) && str2 + 5 <= str1 + max) || (((((((str1 <= 0 && !(str1 == str2)) && max <= 5) && j + str2 + 4294967300 <= str1 + i + 4294967296 * ((max + 4294967295) / 4294967296)) && 5 <= max + str2) && max <= j + 5) && str2 + 5 <= str1 + max) && str1 + i + 4294967296 * ((max + 4294967295) / 4294967296) <= max + str2 + 4294967295)) || ((((((((((((str1 <= 0 && i <= 0) && unknown-#memory_int-unknown[str2 := unknown-#memory_int-unknown[str2][j + str2 := unknown-#memory_int-unknown[str1][str1 + i]]][str1][str1 + i + 2] == unknown-#memory_int-unknown[str2][j + str2 := unknown-#memory_int-unknown[str1][str1 + i]][str1 + 2]) && !(str1 == str2)) && unknown-#memory_int-unknown[str1][str1 + 1] == unknown-#memory_int-unknown[str2][max + str2 + (max + 4294967295) / 4294967296 * -4294967296 + 4294967294]) && unknown-#memory_int-unknown[str2][j + str2 := unknown-#memory_int-unknown[str1][str1 + i]][1] == unknown-#memory_int-unknown[str2 := unknown-#memory_int-unknown[str2][j + str2 := unknown-#memory_int-unknown[str1][str1 + i]]][str1][str1 + 3]) && 5 <= max + str2) && 0 <= i) && j + str2 <= str1 + 4) && max <= j + 1) && unknown-#memory_int-unknown[str2][max + str2 + -5] == unknown-#memory_int-unknown[str1][j + str2]) && str1 <= str2) && str2 + 5 <= str1 + max)) || ((((((((str1 <= 0 && j + str2 <= str1 + 1) && !(str1 == str2)) && 5 <= max + str2) && str1 + i + 4294967296 * ((max + 4294967295) / 4294967296) <= j + str2 + 4294967298) && str1 <= str2) && str2 + 5 <= str1 + max) && unknown-#memory_int-unknown[str2][max + str2 + -5] == unknown-#memory_int-unknown[str1][j + str2 + (max + 4294967295) / 4294967296 * -4294967296 + 4294967299]) && max + str2 + 4294967294 <= str1 + i + 4294967296 * ((max + 4294967295) / 4294967296))) || (((((((((((unknown-#memory_int-unknown[str2][max + str2 + -5] == unknown-#memory_int-unknown[str1][str1 + 4] && str1 <= 0) && unknown-#memory_int-unknown[str1][str1] == unknown-#memory_int-unknown[str2][max + str2 + -1]) && !(str1 == str2)) && str2 <= str1) && unknown-#memory_int-unknown[str1][str1 + 1] == unknown-#memory_int-unknown[str2][max + str2 + (max + 4294967295) / 4294967296 * -4294967296 + 4294967294]) && 0 <= i + 1) && i + 1 <= 0) && unknown-#memory_int-unknown[str1][str1 + 2] == unknown-#memory_int-unknown[str2][str1 + 2]) && unknown-#memory_int-unknown[str1][str1 + 3] == unknown-#memory_int-unknown[str2][1]) && str1 + max <= str2 + 5) && 5 <= max + str2)) || (((((((((str1 <= 0 && unknown-#memory_int-unknown[str2][j + str2 := unknown-#memory_int-unknown[str1][str1 + i]][str1 + 1] == unknown-#memory_int-unknown[str2 := unknown-#memory_int-unknown[str2][j + str2 := unknown-#memory_int-unknown[str1][str1 + i]]][str1][i + j + str2 + -1]) && !(str1 == str2)) && unknown-#memory_int-unknown[str1][j + str2 + (max + 4294967295) / 4294967296 * -4294967296 + 4294967298] == unknown-#memory_int-unknown[str2][max + str2 + -5]) && str1 + i + (max + 4294967295) / 4294967296 * 4294967296 == max + str2 + 4294967293) && str1 + 2 == j + str2) && 5 <= max + str2) && str1 <= str2) && str2 + 5 <= str1 + max) && str1 + i + 4294967296 * ((max + 4294967295) / 4294967296) <= j + str2 + 4294967296) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 64.5s, OverallIterations: 18, TraceHistogramMax: 6, AutomataDifference: 16.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 30.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 353 SDtfs, 440 SDslu, 960 SDs, 0 SdLazy, 4524 SolverSat, 558 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 375 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 291 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1117 ImplicationChecksByTransitivity, 22.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 18 MinimizatonAttempts, 88 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 31 PreInvPairs, 54 NumberOfFragments, 2675 HoareAnnotationTreeSize, 31 FomulaSimplifications, 23563 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 9 FomulaSimplificationsInter, 30171 FormulaSimplificationTreeSizeReductionInter, 29.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 47.5s InterpolantComputationTime, 622 NumberOfCodeBlocks, 622 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 604 ConstructedInterpolants, 0 QuantifiedInterpolants, 392210 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 4 PerfectInterpolantSequences, 438/728 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...