/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=NARROWEST --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/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 10:47:21,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 10:47:21,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 10:47:22,031 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 10:47:22,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 10:47:22,040 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 10:47:22,042 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 10:47:22,046 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 10:47:22,048 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 10:47:22,051 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 10:47:22,052 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 10:47:22,053 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 10:47:22,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 10:47:22,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 10:47:22,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 10:47:22,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 10:47:22,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 10:47:22,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 10:47:22,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 10:47:22,071 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 10:47:22,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 10:47:22,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 10:47:22,075 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 10:47:22,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 10:47:22,088 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 10:47:22,088 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 10:47:22,088 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 10:47:22,094 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 10:47:22,095 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 10:47:22,096 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 10:47:22,096 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 10:47:22,097 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 10:47:22,100 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 10:47:22,101 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 10:47:22,102 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 10:47:22,102 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 10:47:22,103 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 10:47:22,105 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 10:47:22,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 10:47:22,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 10:47:22,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 10:47:22,109 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 [2020-10-13 10:47:22,145 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 10:47:22,145 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 10:47:22,147 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 10:47:22,147 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 10:47:22,147 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 10:47:22,147 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 10:47:22,148 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 10:47:22,148 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 10:47:22,148 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 10:47:22,148 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 10:47:22,149 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 10:47:22,149 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 10:47:22,150 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 10:47:22,150 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 10:47:22,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 10:47:22,150 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 10:47:22,151 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 10:47:22,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 10:47:22,151 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 10:47:22,151 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 10:47:22,152 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 10:47:22,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 10:47:22,152 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 10:47:22,152 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 10:47:22,152 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 10:47:22,153 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 10:47:22,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 10:47:22,153 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 10:47:22,153 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 10:47:22,153 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 10:47:22,472 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 10:47:22,484 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 10:47:22,488 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 10:47:22,489 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 10:47:22,490 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 10:47:22,491 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c [2020-10-13 10:47:22,558 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fb70d2339/b8a545f9e10c490bb401437fde328389/FLAG239f449cc [2020-10-13 10:47:22,974 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 10:47:22,975 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c [2020-10-13 10:47:22,982 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fb70d2339/b8a545f9e10c490bb401437fde328389/FLAG239f449cc [2020-10-13 10:47:23,348 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fb70d2339/b8a545f9e10c490bb401437fde328389 [2020-10-13 10:47:23,358 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 10:47:23,360 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 10:47:23,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 10:47:23,361 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 10:47:23,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 10:47:23,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:47:23" (1/1) ... [2020-10-13 10:47:23,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:47:23, skipping insertion in model container [2020-10-13 10:47:23,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:47:23" (1/1) ... [2020-10-13 10:47:23,378 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 10:47:23,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 10:47:23,588 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:47:23,593 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 10:47:23,623 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:47:23,733 INFO L208 MainTranslator]: Completed translation [2020-10-13 10:47:23,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:47:23 WrapperNode [2020-10-13 10:47:23,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 10:47:23,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 10:47:23,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 10:47:23,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 10:47:23,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:47:23" (1/1) ... [2020-10-13 10:47:23,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:47:23" (1/1) ... [2020-10-13 10:47:23,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:47:23" (1/1) ... [2020-10-13 10:47:23,755 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:47:23" (1/1) ... [2020-10-13 10:47:23,764 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:47:23" (1/1) ... [2020-10-13 10:47:23,768 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:47:23" (1/1) ... [2020-10-13 10:47:23,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:47:23" (1/1) ... [2020-10-13 10:47:23,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 10:47:23,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 10:47:23,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 10:47:23,773 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 10:47:23,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:47:23" (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 [2020-10-13 10:47:23,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 10:47:23,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 10:47:23,834 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 10:47:23,834 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 10:47:23,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 10:47:23,834 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 10:47:23,834 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 10:47:23,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-13 10:47:23,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-13 10:47:23,835 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 10:47:23,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 10:47:23,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 10:47:23,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 10:47:23,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 10:47:23,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 10:47:23,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 10:47:24,120 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 10:47:24,121 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 10:47:24,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:47:24 BoogieIcfgContainer [2020-10-13 10:47:24,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 10:47:24,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 10:47:24,128 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 10:47:24,131 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 10:47:24,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:47:23" (1/3) ... [2020-10-13 10:47:24,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cbd4dd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:47:24, skipping insertion in model container [2020-10-13 10:47:24,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:47:23" (2/3) ... [2020-10-13 10:47:24,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cbd4dd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:47:24, skipping insertion in model container [2020-10-13 10:47:24,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:47:24" (3/3) ... [2020-10-13 10:47:24,134 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_4.i.v+nlh-reducer.c [2020-10-13 10:47:24,147 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 10:47:24,162 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-13 10:47:24,195 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-13 10:47:24,234 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 10:47:24,241 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 10:47:24,241 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 10:47:24,241 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 10:47:24,241 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 10:47:24,242 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 10:47:24,242 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 10:47:24,242 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 10:47:24,267 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-10-13 10:47:24,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-13 10:47:24,272 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:47:24,273 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:47:24,274 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:47:24,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:47:24,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1504353719, now seen corresponding path program 1 times [2020-10-13 10:47:24,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:47:24,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [883080063] [2020-10-13 10:47:24,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:47:24,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:47:24,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:47:24,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:47:24,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 10:47:24,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:47:24,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-13 10:47:24,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:47:24,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:47:24,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 10:47:24,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 10:47:24,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 10:47:24,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:47:24,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:47:24,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:47:24,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:47:24,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:47:24,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:47:24,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 10:47:24,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:47:24,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:47:24,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:47:24,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:47:24,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:47:24,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:47:24,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [883080063] [2020-10-13 10:47:24,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:47:24,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 10:47:24,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74326488] [2020-10-13 10:47:24,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 10:47:24,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:47:24,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 10:47:24,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 10:47:24,830 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 4 states. [2020-10-13 10:47:24,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:47:24,971 INFO L93 Difference]: Finished difference Result 51 states and 67 transitions. [2020-10-13 10:47:24,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-13 10:47:24,973 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-13 10:47:24,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:47:24,983 INFO L225 Difference]: With dead ends: 51 [2020-10-13 10:47:24,984 INFO L226 Difference]: Without dead ends: 33 [2020-10-13 10:47:24,989 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 [2020-10-13 10:47:25,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-13 10:47:25,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2020-10-13 10:47:25,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-13 10:47:25,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2020-10-13 10:47:25,032 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 13 [2020-10-13 10:47:25,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:47:25,032 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2020-10-13 10:47:25,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 10:47:25,033 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2020-10-13 10:47:25,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-13 10:47:25,033 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:47:25,034 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:47:25,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 10:47:25,034 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:47:25,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:47:25,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1581018098, now seen corresponding path program 1 times [2020-10-13 10:47:25,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:47:25,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [230586486] [2020-10-13 10:47:25,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:47:25,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:47:25,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:47:25,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:47:25,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 10:47:25,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:47:25,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-13 10:47:25,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:47:25,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 10:47:25,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 10:47:25,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 10:47:25,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:47:25,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:47:25,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:47:25,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:47:25,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:47:25,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:47:25,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:47:25,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:47:25,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:47:25,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:47:25,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:47:25,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:47:25,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:47:25,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:47:25,251 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [230586486] [2020-10-13 10:47:25,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:47:25,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 10:47:25,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567088979] [2020-10-13 10:47:25,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 10:47:25,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:47:25,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 10:47:25,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 10:47:25,255 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand 5 states. [2020-10-13 10:47:25,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:47:25,380 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2020-10-13 10:47:25,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 10:47:25,381 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-13 10:47:25,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:47:25,382 INFO L225 Difference]: With dead ends: 51 [2020-10-13 10:47:25,383 INFO L226 Difference]: Without dead ends: 49 [2020-10-13 10:47:25,384 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 [2020-10-13 10:47:25,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-13 10:47:25,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 33. [2020-10-13 10:47:25,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-13 10:47:25,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2020-10-13 10:47:25,393 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 14 [2020-10-13 10:47:25,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:47:25,393 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2020-10-13 10:47:25,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 10:47:25,394 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2020-10-13 10:47:25,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-13 10:47:25,394 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:47:25,394 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:47:25,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 10:47:25,395 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:47:25,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:47:25,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1644741047, now seen corresponding path program 1 times [2020-10-13 10:47:25,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:47:25,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1064785572] [2020-10-13 10:47:25,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:47:25,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:47:25,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:47:25,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:47:25,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:47:25,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 10:47:25,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:47:25,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-13 10:47:25,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:47:25,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 10:47:25,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 10:47:25,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 10:47:25,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 10:47:25,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:47:25,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:47:25,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:47:25,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:47:25,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:47:25,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:47:25,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:47:25,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:47:25,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:47:25,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:47:25,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:47:25,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:47:25,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:47:25,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1064785572] [2020-10-13 10:47:25,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:47:25,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 10:47:25,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78538166] [2020-10-13 10:47:25,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 10:47:25,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:47:25,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 10:47:25,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 10:47:25,549 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 5 states. [2020-10-13 10:47:25,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:47:25,669 INFO L93 Difference]: Finished difference Result 56 states and 64 transitions. [2020-10-13 10:47:25,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 10:47:25,670 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-13 10:47:25,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:47:25,671 INFO L225 Difference]: With dead ends: 56 [2020-10-13 10:47:25,671 INFO L226 Difference]: Without dead ends: 36 [2020-10-13 10:47:25,672 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 [2020-10-13 10:47:25,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-13 10:47:25,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2020-10-13 10:47:25,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-13 10:47:25,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2020-10-13 10:47:25,679 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 14 [2020-10-13 10:47:25,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:47:25,679 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2020-10-13 10:47:25,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 10:47:25,679 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2020-10-13 10:47:25,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-13 10:47:25,680 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:47:25,680 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:47:25,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 10:47:25,681 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:47:25,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:47:25,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1385845809, now seen corresponding path program 1 times [2020-10-13 10:47:25,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:47:25,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [888217514] [2020-10-13 10:47:25,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:47:25,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:47:25,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:47:26,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:47:26,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 10:47:26,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:47:26,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 484 [2020-10-13 10:47:26,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:47:26,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:47:26,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 10:47:26,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 10:47:26,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:47:26,576 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 49 [2020-10-13 10:47:27,107 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 72 [2020-10-13 10:47:27,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:47:27,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:47:27,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:47:27,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:47:27,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:47:27,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:47:27,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:47:27,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:47:27,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:47:27,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:47:27,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:47:27,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:47:27,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:47:27,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [888217514] [2020-10-13 10:47:27,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:47:27,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 10:47:27,155 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583860982] [2020-10-13 10:47:27,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 10:47:27,156 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:47:27,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 10:47:27,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 10:47:27,157 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand 7 states. [2020-10-13 10:47:27,383 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-10-13 10:47:27,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:47:27,502 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2020-10-13 10:47:27,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 10:47:27,502 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-10-13 10:47:27,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:47:27,504 INFO L225 Difference]: With dead ends: 32 [2020-10-13 10:47:27,504 INFO L226 Difference]: Without dead ends: 30 [2020-10-13 10:47:27,505 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-13 10:47:27,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-13 10:47:27,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-13 10:47:27,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-13 10:47:27,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2020-10-13 10:47:27,512 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 20 [2020-10-13 10:47:27,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:47:27,512 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2020-10-13 10:47:27,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 10:47:27,513 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2020-10-13 10:47:27,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-13 10:47:27,513 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:47:27,513 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:47:27,514 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 10:47:27,514 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:47:27,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:47:27,514 INFO L82 PathProgramCache]: Analyzing trace with hash -624217503, now seen corresponding path program 1 times [2020-10-13 10:47:27,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:47:27,515 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [781985282] [2020-10-13 10:47:27,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:47:27,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:47:27,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:47:27,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:47:27,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:47:27,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 10:47:27,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:47:27,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-13 10:47:27,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:47:27,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:47:27,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 10:47:27,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 10:47:27,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:47:27,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:47:27,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:47:27,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:47:27,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:47:27,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:47:27,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:47:27,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:47:27,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:47:27,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:47:27,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:47:27,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:47:27,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:47:27,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:47:27,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [781985282] [2020-10-13 10:47:27,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:47:27,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 10:47:27,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840042111] [2020-10-13 10:47:27,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 10:47:27,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:47:27,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 10:47:27,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 10:47:27,813 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 6 states. [2020-10-13 10:47:27,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:47:27,950 INFO L93 Difference]: Finished difference Result 65 states and 73 transitions. [2020-10-13 10:47:27,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 10:47:27,951 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-10-13 10:47:27,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:47:27,952 INFO L225 Difference]: With dead ends: 65 [2020-10-13 10:47:27,952 INFO L226 Difference]: Without dead ends: 48 [2020-10-13 10:47:27,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-13 10:47:27,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-13 10:47:27,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 36. [2020-10-13 10:47:27,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-13 10:47:27,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2020-10-13 10:47:27,961 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 21 [2020-10-13 10:47:27,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:47:27,961 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2020-10-13 10:47:27,961 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 10:47:27,961 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2020-10-13 10:47:27,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-13 10:47:27,962 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:47:27,963 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:47:27,963 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 10:47:27,963 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:47:27,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:47:27,964 INFO L82 PathProgramCache]: Analyzing trace with hash -640274852, now seen corresponding path program 1 times [2020-10-13 10:47:27,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:47:27,964 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [988149373] [2020-10-13 10:47:27,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:47:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:47:27,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:47:28,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:47:28,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 10:47:28,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:47:28,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-13 10:47:28,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:47:28,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 10:47:28,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 10:47:28,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 10:47:28,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:47:28,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:47:28,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:47:28,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:47:28,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:47:28,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:47:28,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:47:28,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:47:28,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:47:28,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:47:28,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:47:28,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:47:28,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:47:28,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:47:28,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [988149373] [2020-10-13 10:47:28,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:47:28,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 10:47:28,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811491788] [2020-10-13 10:47:28,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 10:47:28,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:47:28,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 10:47:28,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 10:47:28,086 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand 5 states. [2020-10-13 10:47:28,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:47:28,184 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2020-10-13 10:47:28,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 10:47:28,185 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-13 10:47:28,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:47:28,185 INFO L225 Difference]: With dead ends: 53 [2020-10-13 10:47:28,186 INFO L226 Difference]: Without dead ends: 51 [2020-10-13 10:47:28,186 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 10:47:28,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-13 10:47:28,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 36. [2020-10-13 10:47:28,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-13 10:47:28,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2020-10-13 10:47:28,194 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 21 [2020-10-13 10:47:28,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:47:28,194 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2020-10-13 10:47:28,194 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 10:47:28,194 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2020-10-13 10:47:28,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-13 10:47:28,195 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:47:28,195 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:47:28,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 10:47:28,196 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:47:28,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:47:28,196 INFO L82 PathProgramCache]: Analyzing trace with hash 358048683, now seen corresponding path program 1 times [2020-10-13 10:47:28,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:47:28,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1447183645] [2020-10-13 10:47:28,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:47:28,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:47:28,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:47:28,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:47:28,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:47:28,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 10:47:28,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:47:28,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 425 [2020-10-13 10:47:28,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:47:28,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:47:28,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 10:47:28,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 10:47:28,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:47:31,405 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 90 [2020-10-13 10:47:31,884 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 79 [2020-10-13 10:47:31,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:47:31,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:47:31,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:47:31,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:47:31,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:47:31,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:47:31,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 10:47:31,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:47:31,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:47:31,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:47:31,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:47:31,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:47:31,968 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:47:31,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1447183645] [2020-10-13 10:47:31,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:47:31,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 10:47:31,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721221810] [2020-10-13 10:47:31,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 10:47:31,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:47:31,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 10:47:31,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=30, Unknown=1, NotChecked=0, Total=42 [2020-10-13 10:47:31,971 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 7 states. [2020-10-13 10:47:34,898 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-13 10:47:35,422 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 10:47:35,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:47:35,521 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2020-10-13 10:47:35,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 10:47:35,522 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2020-10-13 10:47:35,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:47:35,523 INFO L225 Difference]: With dead ends: 42 [2020-10-13 10:47:35,523 INFO L226 Difference]: Without dead ends: 40 [2020-10-13 10:47:35,523 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=19, Invalid=52, Unknown=1, NotChecked=0, Total=72 [2020-10-13 10:47:35,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-13 10:47:35,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2020-10-13 10:47:35,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-13 10:47:35,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2020-10-13 10:47:35,544 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 22 [2020-10-13 10:47:35,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:47:35,545 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2020-10-13 10:47:35,545 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 10:47:35,545 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2020-10-13 10:47:35,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-13 10:47:35,546 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:47:35,546 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:47:35,546 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 10:47:35,546 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:47:35,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:47:35,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1635846330, now seen corresponding path program 1 times [2020-10-13 10:47:35,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:47:35,547 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1610386826] [2020-10-13 10:47:35,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:47:35,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:47:35,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:47:35,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:47:35,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:47:35,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 10:47:35,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:47:35,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-13 10:47:35,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:47:35,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:47:35,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 10:47:35,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 10:47:35,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:47:35,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:47:35,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:47:35,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:47:35,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:47:35,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:47:35,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:47:35,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:47:35,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:47:35,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:47:35,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:47:35,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:47:35,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:47:35,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:47:35,706 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1610386826] [2020-10-13 10:47:35,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:47:35,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 10:47:35,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583696876] [2020-10-13 10:47:35,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 10:47:35,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:47:35,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 10:47:35,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 10:47:35,708 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 6 states. [2020-10-13 10:47:35,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:47:35,815 INFO L93 Difference]: Finished difference Result 60 states and 66 transitions. [2020-10-13 10:47:35,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 10:47:35,816 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-10-13 10:47:35,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:47:35,816 INFO L225 Difference]: With dead ends: 60 [2020-10-13 10:47:35,816 INFO L226 Difference]: Without dead ends: 35 [2020-10-13 10:47:35,817 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 10:47:35,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-13 10:47:35,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 29. [2020-10-13 10:47:35,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-13 10:47:35,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-10-13 10:47:35,825 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 22 [2020-10-13 10:47:35,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:47:35,825 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-10-13 10:47:35,825 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 10:47:35,825 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-10-13 10:47:35,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-13 10:47:35,826 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:47:35,826 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:47:35,826 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 10:47:35,827 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:47:35,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:47:35,827 INFO L82 PathProgramCache]: Analyzing trace with hash 487488677, now seen corresponding path program 2 times [2020-10-13 10:47:35,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:47:35,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [863747917] [2020-10-13 10:47:35,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:47:35,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:47:35,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:47:36,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:47:36,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 10:47:36,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:47:36,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 309 [2020-10-13 10:47:36,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:47:36,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:47:36,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 10:47:36,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 10:47:36,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:47:36,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:47:36,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:47:36,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:47:36,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:47:36,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:47:36,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:47:36,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:47:36,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:47:36,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:47:36,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:47:36,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:47:36,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:47:36,238 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 10:47:36,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [863747917] [2020-10-13 10:47:36,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:47:36,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 10:47:36,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830560411] [2020-10-13 10:47:36,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 10:47:36,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:47:36,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 10:47:36,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 10:47:36,240 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 5 states. [2020-10-13 10:47:38,370 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification that was a NOOP. DAG size: 26 [2020-10-13 10:47:38,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:47:38,479 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-10-13 10:47:38,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 10:47:38,480 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-10-13 10:47:38,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:47:38,480 INFO L225 Difference]: With dead ends: 31 [2020-10-13 10:47:38,480 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 10:47:38,481 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 10:47:38,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 10:47:38,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 10:47:38,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 10:47:38,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 10:47:38,482 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2020-10-13 10:47:38,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:47:38,483 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 10:47:38,483 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 10:47:38,483 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 10:47:38,483 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 10:47:38,484 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 10:47:38,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 10:48:18,136 WARN L193 SmtUtils]: Spent 39.41 s on a formula simplification. DAG size of input: 176 DAG size of output: 52 [2020-10-13 10:49:05,589 WARN L193 SmtUtils]: Spent 47.45 s on a formula simplification. DAG size of input: 201 DAG size of output: 78 [2020-10-13 10:49:17,084 WARN L193 SmtUtils]: Spent 11.49 s on a formula simplification. DAG size of input: 114 DAG size of output: 55 [2020-10-13 10:49:17,110 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 10:49:17,111 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_main~0 |old(~__return_main~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~__tmp_155_0~0 |old(~__tmp_155_0~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~__return_136~0 |old(~__return_136~0)|) (= |old(#valid)| |#valid|)) [2020-10-13 10:49:17,111 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 10:49:17,111 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 10:49:17,111 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-13 10:49:17,111 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 10:49:17,111 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 10:49:17,111 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-10-13 10:49:17,111 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-10-13 10:49:17,112 INFO L268 CegarLoopResult]: For program point L5-2(lines 4 6) no Hoare annotation was computed. [2020-10-13 10:49:17,112 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-10-13 10:49:17,112 INFO L268 CegarLoopResult]: For program point L60(lines 60 86) no Hoare annotation was computed. [2020-10-13 10:49:17,112 INFO L268 CegarLoopResult]: For program point L27(lines 27 150) no Hoare annotation was computed. [2020-10-13 10:49:17,112 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 12 166) no Hoare annotation was computed. [2020-10-13 10:49:17,112 INFO L264 CegarLoopResult]: At program point L85(lines 60 86) the Hoare annotation is: (let ((.cse1 (div (+ (* main_~main__index2~0 (- 1)) 4294967294) 4294967296)) (.cse2 (* main_~main__index1~0 (- 1))) (.cse0 (* 4294967296 (div main_~main__index2~0 4294967296)))) (and (<= 1 main_~main____CPAchecker_TMP_0~1) (<= main_~main__index2~0 (+ .cse0 99998)) (<= (+ (* 4294967296 (div (+ (* .cse1 (- 4294967296)) .cse2 4294967296) 4294967296)) main_~main__index1~0) (+ main_~main__index2~0 1)) (let ((.cse5 (select |#memory_int| |main_~#main__array~0.base|))) (let ((.cse3 (select .cse5 (+ (* main_~main__index1~0 4) |main_~#main__array~0.offset| (* (div (+ .cse2 4294967296) 4294967296) 17179869184) (- 4))))) (<= (let ((.cse4 (select .cse5 (+ (* .cse1 17179869184) (* main_~main__index2~0 4) |main_~#main__array~0.offset| 4)))) (+ (* 4294967296 (div (+ .cse3 (* .cse4 (- 1)) 4294967295) 4294967296)) .cse4)) .cse3))) (<= (+ main_~main__index1~0 .cse0 1) (+ main_~main__index2~0 (* 4294967296 (div main_~main__index1~0 4294967296)))))) [2020-10-13 10:49:17,113 INFO L268 CegarLoopResult]: For program point L19(lines 19 165) no Hoare annotation was computed. [2020-10-13 10:49:17,113 INFO L268 CegarLoopResult]: For program point L48(lines 48 136) no Hoare annotation was computed. [2020-10-13 10:49:17,113 INFO L264 CegarLoopResult]: At program point L77(lines 44 137) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~main__index2~0 4294967296)))) (and (<= main_~main__index2~0 (+ .cse0 99999)) (<= (+ main_~main__index1~0 .cse0 1) (+ main_~main__index2~0 (* 4294967296 (div main_~main__index1~0 4294967296)))))) [2020-10-13 10:49:17,113 INFO L268 CegarLoopResult]: For program point L106(lines 106 118) no Hoare annotation was computed. [2020-10-13 10:49:17,113 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-10-13 10:49:17,113 INFO L268 CegarLoopResult]: For program point L69(lines 69 78) no Hoare annotation was computed. [2020-10-13 10:49:17,113 INFO L268 CegarLoopResult]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 108) no Hoare annotation was computed. [2020-10-13 10:49:17,114 INFO L264 CegarLoopResult]: At program point L90(lines 58 91) the Hoare annotation is: false [2020-10-13 10:49:17,114 INFO L268 CegarLoopResult]: For program point L24(lines 24 155) no Hoare annotation was computed. [2020-10-13 10:49:17,114 INFO L264 CegarLoopResult]: At program point L144(lines 29 145) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~main__index2~0 4294967296)))) (and (<= main_~main__index2~0 (+ .cse0 99999)) (= main_~main__loop_entered~0 0) (= main_~main____CPAchecker_TMP_0~0 1) (<= (+ main_~main__index1~0 .cse0 1) (+ main_~main__index2~0 (* 4294967296 (div main_~main__index1~0 4294967296)))))) [2020-10-13 10:49:17,114 INFO L268 CegarLoopResult]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 71) no Hoare annotation was computed. [2020-10-13 10:49:17,114 INFO L268 CegarLoopResult]: For program point L29(lines 29 145) no Hoare annotation was computed. [2020-10-13 10:49:17,114 INFO L268 CegarLoopResult]: For program point L58(lines 58 91) no Hoare annotation was computed. [2020-10-13 10:49:17,115 INFO L264 CegarLoopResult]: At program point L149(lines 27 150) the Hoare annotation is: false [2020-10-13 10:49:17,115 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 12 166) no Hoare annotation was computed. [2020-10-13 10:49:17,115 INFO L268 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-13 10:49:17,115 INFO L268 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-10-13 10:49:17,115 INFO L268 CegarLoopResult]: For program point L38(lines 38 137) no Hoare annotation was computed. [2020-10-13 10:49:17,115 INFO L271 CegarLoopResult]: At program point L129(lines 96 130) the Hoare annotation is: true [2020-10-13 10:49:17,115 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 40) no Hoare annotation was computed. [2020-10-13 10:49:17,115 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 12 166) the Hoare annotation is: (and (= ~__tmp_155_0~0 |old(~__tmp_155_0~0)|) (= |old(#valid)| |#valid|)) [2020-10-13 10:49:17,116 INFO L264 CegarLoopResult]: At program point L154(lines 24 155) the Hoare annotation is: (or (= main_~main__loop_entered~0 0) (let ((.cse0 (div (+ (* main_~main__index2~0 (- 1)) 4294967294) 4294967296)) (.cse1 (* main_~main__index1~0 (- 1)))) (and (<= main_~main__index2~0 (+ (* 4294967296 (div main_~main__index2~0 4294967296)) 99998)) (<= (+ (* 4294967296 (div (+ (* .cse0 (- 4294967296)) .cse1 4294967296) 4294967296)) main_~main__index1~0) (+ main_~main__index2~0 1)) (let ((.cse4 (select |#memory_int| |main_~#main__array~0.base|))) (let ((.cse2 (select .cse4 (+ (* main_~main__index1~0 4) |main_~#main__array~0.offset| (* (div (+ .cse1 4294967296) 4294967296) 17179869184) (- 4))))) (<= (let ((.cse3 (select .cse4 (+ (* .cse0 17179869184) (* main_~main__index2~0 4) |main_~#main__array~0.offset| 4)))) (+ (* 4294967296 (div (+ .cse2 (* .cse3 (- 1)) 4294967295) 4294967296)) .cse3)) .cse2)))))) [2020-10-13 10:49:17,116 INFO L268 CegarLoopResult]: For program point L55(lines 55 131) no Hoare annotation was computed. [2020-10-13 10:49:17,116 INFO L268 CegarLoopResult]: For program point L22(lines 22 160) no Hoare annotation was computed. [2020-10-13 10:49:17,116 INFO L264 CegarLoopResult]: At program point L117(lines 97 126) the Hoare annotation is: (let ((.cse13 (div main_~main__index2~0 4294967296))) (let ((.cse0 (* 4294967296 .cse13)) (.cse6 (* main_~main__index2~0 4)) (.cse5 (select |#memory_int| |main_~#main__array~0.base|)) (.cse7 (* main_~main__index1~0 4))) (or (let ((.cse1 (div (+ (* main_~main__index2~0 (- 1)) 4294967294) 4294967296)) (.cse2 (* main_~main__index1~0 (- 1)))) (and (<= main_~main__index2~0 (+ .cse0 99998)) (<= (+ (* 4294967296 (div (+ (* .cse1 (- 4294967296)) .cse2 4294967296) 4294967296)) main_~main__index1~0) (+ main_~main__index2~0 1)) (let ((.cse3 (select .cse5 (+ .cse7 |main_~#main__array~0.offset| (* (div (+ .cse2 4294967296) 4294967296) 17179869184) (- 4))))) (<= (let ((.cse4 (select .cse5 (+ (* .cse1 17179869184) .cse6 |main_~#main__array~0.offset| 4)))) (+ (* 4294967296 (div (+ .cse3 (* .cse4 (- 1)) 4294967295) 4294967296)) .cse4)) .cse3)))) (let ((.cse11 (div main_~main__index1~0 4294967296))) (let ((.cse12 (select .cse5 (+ .cse7 |main_~#main__array~0.offset| (* .cse11 (- 17179869184))))) (.cse9 (select .cse5 (+ .cse6 |main_~#main__array~0.offset| (* .cse13 (- 17179869184)))))) (let ((.cse10 (+ .cse12 (* 4294967296 (div .cse9 4294967296)))) (.cse8 (* 4294967296 (div .cse12 4294967296)))) (and (<= main_~main__index2~0 (+ .cse0 99999)) (not (= main_~__VERIFIER_assert__cond~2 0)) (<= (+ .cse8 .cse9) .cse10) (< .cse10 (+ .cse8 .cse9 1)) (<= (+ main_~main__index1~0 .cse0 1) (+ main_~main__index2~0 (* 4294967296 .cse11)))))))))) [2020-10-13 10:49:17,135 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,136 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,136 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,136 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,138 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,138 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,138 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,138 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,141 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,141 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,141 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,141 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,142 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,142 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,142 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,142 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,143 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,143 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,143 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,143 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,146 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,146 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,146 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,146 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,147 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,147 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,147 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,147 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,147 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,148 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,148 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,148 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,150 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,150 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,150 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,150 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,151 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,151 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,152 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,152 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 10:49:17 BoogieIcfgContainer [2020-10-13 10:49:17,155 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 10:49:17,157 INFO L168 Benchmark]: Toolchain (without parser) took 113797.04 ms. Allocated memory was 147.3 MB in the beginning and 302.0 MB in the end (delta: 154.7 MB). Free memory was 103.0 MB in the beginning and 192.5 MB in the end (delta: -89.5 MB). Peak memory consumption was 160.4 MB. Max. memory is 7.1 GB. [2020-10-13 10:49:17,157 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 147.3 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 10:49:17,158 INFO L168 Benchmark]: CACSL2BoogieTranslator took 372.62 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 102.8 MB in the beginning and 182.9 MB in the end (delta: -80.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-10-13 10:49:17,159 INFO L168 Benchmark]: Boogie Preprocessor took 38.02 ms. Allocated memory is still 203.9 MB. Free memory was 182.9 MB in the beginning and 180.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-10-13 10:49:17,159 INFO L168 Benchmark]: RCFGBuilder took 353.83 ms. Allocated memory is still 203.9 MB. Free memory was 180.6 MB in the beginning and 160.3 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2020-10-13 10:49:17,160 INFO L168 Benchmark]: TraceAbstraction took 113027.03 ms. Allocated memory was 203.9 MB in the beginning and 302.0 MB in the end (delta: 98.0 MB). Free memory was 160.3 MB in the beginning and 192.5 MB in the end (delta: -32.2 MB). Peak memory consumption was 161.1 MB. Max. memory is 7.1 GB. [2020-10-13 10:49:17,163 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 147.3 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 372.62 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 102.8 MB in the beginning and 182.9 MB in the end (delta: -80.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 38.02 ms. Allocated memory is still 203.9 MB. Free memory was 182.9 MB in the beginning and 180.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 353.83 ms. Allocated memory is still 203.9 MB. Free memory was 180.6 MB in the beginning and 160.3 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 113027.03 ms. Allocated memory was 203.9 MB in the beginning and 302.0 MB in the end (delta: 98.0 MB). Free memory was 160.3 MB in the beginning and 192.5 MB in the end (delta: -32.2 MB). Peak memory consumption was 161.1 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 40]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 108]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 71]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99999 && main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) - InvariantResult [Line: 24]: Loop Invariant [2020-10-13 10:49:17,175 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,175 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,175 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,175 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,176 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,176 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,177 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,177 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: main__loop_entered == 0 || ((main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99998 && 4294967296 * (((main__index2 * -1 + 4294967294) / 4294967296 * -4294967296 + main__index1 * -1 + 4294967296) / 4294967296) + main__index1 <= main__index2 + 1) && 4294967296 * ((unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + (main__index1 * -1 + 4294967296) / 4294967296 * 17179869184 + -4] + unknown-#memory_int-unknown[main__array][(main__index2 * -1 + 4294967294) / 4294967296 * 17179869184 + main__index2 * 4 + main__array + 4] * -1 + 4294967295) / 4294967296) + unknown-#memory_int-unknown[main__array][(main__index2 * -1 + 4294967294) / 4294967296 * 17179869184 + main__index2 * 4 + main__array + 4] <= unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + (main__index1 * -1 + 4294967296) / 4294967296 * 17179869184 + -4]) - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 97]: Loop Invariant [2020-10-13 10:49:17,178 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,178 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,179 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,179 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,179 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,179 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,179 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,180 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,180 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,180 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,180 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,180 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,182 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,183 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,183 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,183 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,183 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,183 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,185 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99998 && 4294967296 * (((main__index2 * -1 + 4294967294) / 4294967296 * -4294967296 + main__index1 * -1 + 4294967296) / 4294967296) + main__index1 <= main__index2 + 1) && 4294967296 * ((unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + (main__index1 * -1 + 4294967296) / 4294967296 * 17179869184 + -4] + unknown-#memory_int-unknown[main__array][(main__index2 * -1 + 4294967294) / 4294967296 * 17179869184 + main__index2 * 4 + main__array + 4] * -1 + 4294967295) / 4294967296) + unknown-#memory_int-unknown[main__array][(main__index2 * -1 + 4294967294) / 4294967296 * 17179869184 + main__index2 * 4 + main__array + 4] <= unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + (main__index1 * -1 + 4294967296) / 4294967296 * 17179869184 + -4]) || ((((main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99999 && !(__VERIFIER_assert__cond == 0)) && 4294967296 * (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] / 4294967296) + unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] <= unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] / 4294967296)) && unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] / 4294967296) < 4294967296 * (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] / 4294967296) + unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] + 1) && main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296)) - InvariantResult [Line: 60]: Loop Invariant [2020-10-13 10:49:17,191 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,191 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,191 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,192 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,192 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,192 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,193 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:49:17,193 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((1 <= main____CPAchecker_TMP_0 && main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99998) && 4294967296 * (((main__index2 * -1 + 4294967294) / 4294967296 * -4294967296 + main__index1 * -1 + 4294967296) / 4294967296) + main__index1 <= main__index2 + 1) && 4294967296 * ((unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + (main__index1 * -1 + 4294967296) / 4294967296 * 17179869184 + -4] + unknown-#memory_int-unknown[main__array][(main__index2 * -1 + 4294967294) / 4294967296 * 17179869184 + main__index2 * 4 + main__array + 4] * -1 + 4294967295) / 4294967296) + unknown-#memory_int-unknown[main__array][(main__index2 * -1 + 4294967294) / 4294967296 * 17179869184 + main__index2 * 4 + main__array + 4] <= unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + (main__index1 * -1 + 4294967296) / 4294967296 * 17179869184 + -4]) && main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: ((main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99999 && main__loop_entered == 0) && main____CPAchecker_TMP_0 == 1) && main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 40 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.2s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 6.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 98.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 225 SDtfs, 186 SDslu, 343 SDs, 0 SdLazy, 592 SolverSat, 30 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 3.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 61 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 12 PreInvPairs, 22 NumberOfFragments, 638 HoareAnnotationTreeSize, 12 FomulaSimplifications, 2264 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 12 FomulaSimplificationsInter, 5957 FormulaSimplificationTreeSizeReductionInter, 98.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 171 NumberOfCodeBlocks, 171 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 101208 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 5/8 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...