/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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=SHALLOWEST --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 language data_model -i ../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 01:35:29,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 01:35:29,778 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 01:35:29,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 01:35:29,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 01:35:29,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 01:35:29,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 01:35:29,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 01:35:29,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 01:35:29,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 01:35:29,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 01:35:29,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 01:35:29,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 01:35:29,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 01:35:29,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 01:35:29,861 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 01:35:29,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 01:35:29,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 01:35:29,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 01:35:29,880 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 01:35:29,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 01:35:29,900 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 01:35:29,901 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 01:35:29,903 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 01:35:29,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 01:35:29,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 01:35:29,914 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 01:35:29,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 01:35:29,917 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 01:35:29,918 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 01:35:29,918 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 01:35:29,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 01:35:29,921 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 01:35:29,923 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 01:35:29,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 01:35:29,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 01:35:29,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 01:35:29,926 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 01:35:29,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 01:35:29,927 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 01:35:29,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 01:35:29,931 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 [2020-10-27 01:35:29,981 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 01:35:29,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 01:35:29,985 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 01:35:29,986 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 01:35:29,986 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 01:35:29,986 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 01:35:29,986 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 01:35:29,987 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 01:35:29,987 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 01:35:29,988 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 01:35:29,989 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 01:35:29,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 01:35:29,989 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 01:35:29,989 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 01:35:29,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 01:35:29,990 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 01:35:29,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 01:35:29,990 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 01:35:29,991 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 01:35:29,991 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 01:35:29,991 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 01:35:29,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:35:29,991 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 01:35:29,992 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 01:35:29,992 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 01:35:29,992 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 01:35:29,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 01:35:29,992 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 01:35:29,992 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 01:35:29,993 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 01:35:30,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 01:35:30,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 01:35:30,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 01:35:30,394 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 01:35:30,396 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 01:35:30,397 INFO L432 ainManager$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 [2020-10-27 01:35:30,477 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f87879241/6796c9ff32f4437b99aebb41eae4bbb3/FLAG2aee7852c [2020-10-27 01:35:31,078 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 01:35:31,079 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i [2020-10-27 01:35:31,087 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f87879241/6796c9ff32f4437b99aebb41eae4bbb3/FLAG2aee7852c [2020-10-27 01:35:31,416 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f87879241/6796c9ff32f4437b99aebb41eae4bbb3 [2020-10-27 01:35:31,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 01:35:31,434 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 01:35:31,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 01:35:31,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 01:35:31,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 01:35:31,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:35:31" (1/1) ... [2020-10-27 01:35:31,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c7ee743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:35:31, skipping insertion in model container [2020-10-27 01:35:31,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:35:31" (1/1) ... [2020-10-27 01:35:31,453 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 01:35:31,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 01:35:31,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:35:31,666 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 01:35:31,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:35:31,724 INFO L208 MainTranslator]: Completed translation [2020-10-27 01:35:31,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:35:31 WrapperNode [2020-10-27 01:35:31,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 01:35:31,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 01:35:31,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 01:35:31,726 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 01:35:31,739 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:35:31" (1/1) ... [2020-10-27 01:35:31,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:35:31" (1/1) ... [2020-10-27 01:35:31,747 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:35:31" (1/1) ... [2020-10-27 01:35:31,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:35:31" (1/1) ... [2020-10-27 01:35:31,755 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:35:31" (1/1) ... [2020-10-27 01:35:31,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:35:31" (1/1) ... [2020-10-27 01:35:31,762 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:35:31" (1/1) ... [2020-10-27 01:35:31,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 01:35:31,765 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 01:35:31,765 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 01:35:31,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 01:35:31,766 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:35:31" (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 [2020-10-27 01:35:31,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 01:35:31,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 01:35:31,840 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 01:35:31,840 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 01:35:31,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-27 01:35:31,841 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 01:35:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 01:35:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 01:35:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-27 01:35:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-27 01:35:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 01:35:31,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 01:35:31,842 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 01:35:31,842 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-27 01:35:31,842 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-27 01:35:31,842 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 01:35:31,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 01:35:31,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 01:35:31,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 01:35:31,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 01:35:31,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 01:35:31,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 01:35:32,314 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 01:35:32,314 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-27 01:35:32,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:35:32 BoogieIcfgContainer [2020-10-27 01:35:32,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 01:35:32,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 01:35:32,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 01:35:32,349 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 01:35:32,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:35:31" (1/3) ... [2020-10-27 01:35:32,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27448b76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:35:32, skipping insertion in model container [2020-10-27 01:35:32,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:35:31" (2/3) ... [2020-10-27 01:35:32,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27448b76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:35:32, skipping insertion in model container [2020-10-27 01:35:32,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:35:32" (3/3) ... [2020-10-27 01:35:32,354 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_4.i [2020-10-27 01:35:32,366 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 01:35:32,372 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 01:35:32,386 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 01:35:32,431 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 01:35:32,432 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 01:35:32,432 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 01:35:32,432 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 01:35:32,432 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 01:35:32,432 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 01:35:32,432 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 01:35:32,432 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 01:35:32,457 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-10-27 01:35:32,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-27 01:35:32,466 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:35:32,467 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:35:32,468 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:35:32,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:35:32,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1062743835, now seen corresponding path program 1 times [2020-10-27 01:35:32,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:35:32,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1354157617] [2020-10-27 01:35:32,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:35:32,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:35:32,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:32,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:32,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:35:32,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-27 01:35:32,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:35:32,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-10-27 01:35:32,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:35:32,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:35:32,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 01:35:32,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:35:32,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 01:35:33,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:35:33,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:35:33,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:33,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:35:33,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:35:33,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:35:33,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 01:35:33,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:35:33,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:35:33,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:35:33,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:35:33,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:35:33,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:35:33,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:35:33,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:33,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:35:33,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:35:33,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:35:33,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 01:35:33,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:35:33,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:35:33,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 01:35:33,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:35:33,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:35:33,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 01:35:33,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:35:33,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:33,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:33,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:35:33,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:35:33,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:35:33,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:35:33,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:35:33,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:35:33,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 01:35:33,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:35:33,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:35:33,085 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-27 01:35:33,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1354157617] [2020-10-27 01:35:33,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:35:33,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-27 01:35:33,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768282944] [2020-10-27 01:35:33,094 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-27 01:35:33,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:35:33,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-27 01:35:33,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 01:35:33,111 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 3 states. [2020-10-27 01:35:33,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:35:33,228 INFO L93 Difference]: Finished difference Result 66 states and 91 transitions. [2020-10-27 01:35:33,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 01:35:33,230 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-27 01:35:33,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:35:33,239 INFO L225 Difference]: With dead ends: 66 [2020-10-27 01:35:33,239 INFO L226 Difference]: Without dead ends: 30 [2020-10-27 01:35:33,243 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 01:35:33,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-27 01:35:33,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-27 01:35:33,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-27 01:35:33,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2020-10-27 01:35:33,288 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 24 [2020-10-27 01:35:33,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:35:33,289 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2020-10-27 01:35:33,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-27 01:35:33,289 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-10-27 01:35:33,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-27 01:35:33,292 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:35:33,292 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:35:33,292 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 01:35:33,292 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:35:33,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:35:33,293 INFO L82 PathProgramCache]: Analyzing trace with hash -351351529, now seen corresponding path program 1 times [2020-10-27 01:35:33,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:35:33,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [942397073] [2020-10-27 01:35:33,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:35:33,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:35:33,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:33,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:34,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:35:34,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-27 01:35:34,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:35:34,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 705 [2020-10-27 01:35:34,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:35:34,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 01:35:34,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 01:35:34,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 01:35:34,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:35:34,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:35:34,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:35:34,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:34,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:35:34,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:35:34,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:35:34,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 01:35:34,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:35:34,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:35:34,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:35:34,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:35:34,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:35:34,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:35:34,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:35:34,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:34,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:35:34,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:35:34,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:35:34,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 01:35:34,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:35:34,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 01:35:34,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:35:34,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 01:35:34,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:35:34,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 01:35:34,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:35:34,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:34,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:35:34,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:35:34,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:35:34,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 01:35:34,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:35:34,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 01:35:34,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:35:34,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 01:35:34,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:35:34,351 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-27 01:35:34,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [942397073] [2020-10-27 01:35:34,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:35:34,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 01:35:34,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049340644] [2020-10-27 01:35:34,353 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 01:35:34,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:35:34,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 01:35:34,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-27 01:35:34,355 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 10 states. [2020-10-27 01:35:34,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:35:34,674 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2020-10-27 01:35:34,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 01:35:34,675 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2020-10-27 01:35:34,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:35:34,677 INFO L225 Difference]: With dead ends: 47 [2020-10-27 01:35:34,677 INFO L226 Difference]: Without dead ends: 43 [2020-10-27 01:35:34,678 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2020-10-27 01:35:34,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-27 01:35:34,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 36. [2020-10-27 01:35:34,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-27 01:35:34,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2020-10-27 01:35:34,691 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 24 [2020-10-27 01:35:34,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:35:34,692 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2020-10-27 01:35:34,692 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 01:35:34,692 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2020-10-27 01:35:34,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-27 01:35:34,693 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:35:34,694 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:35:34,694 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 01:35:34,694 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:35:34,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:35:34,695 INFO L82 PathProgramCache]: Analyzing trace with hash -897618950, now seen corresponding path program 1 times [2020-10-27 01:35:34,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:35:34,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [839994080] [2020-10-27 01:35:34,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:35:34,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:35:34,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:34,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:35:34,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 01:35:34,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:35:34,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-27 01:35:34,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:35:34,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:35:34,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:35:34,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 01:35:34,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:35:34,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:35:34,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:35:34,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:34,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:35:34,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:35:34,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:35:34,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:35:34,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:35:34,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:35:34,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:35:34,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:35:34,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:35:34,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:35:34,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:35:34,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:34,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:35:34,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:35:34,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:35:34,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 01:35:34,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:35:34,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:35:34,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:35:34,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:35:34,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:35:34,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 01:35:34,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:35:34,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:34,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:35:34,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:35:34,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:35:34,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 01:35:34,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:35:34,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:35:34,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:35:34,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:35:34,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:35:34,900 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-27 01:35:34,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [839994080] [2020-10-27 01:35:34,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:35:34,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 01:35:34,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268815249] [2020-10-27 01:35:34,902 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 01:35:34,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:35:34,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 01:35:34,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 01:35:34,903 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand 4 states. [2020-10-27 01:35:34,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:35:34,998 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2020-10-27 01:35:34,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 01:35:34,998 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-10-27 01:35:34,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:35:35,000 INFO L225 Difference]: With dead ends: 51 [2020-10-27 01:35:35,000 INFO L226 Difference]: Without dead ends: 39 [2020-10-27 01:35:35,001 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 01:35:35,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-27 01:35:35,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2020-10-27 01:35:35,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-27 01:35:35,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2020-10-27 01:35:35,010 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 26 [2020-10-27 01:35:35,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:35:35,011 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2020-10-27 01:35:35,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 01:35:35,011 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2020-10-27 01:35:35,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-27 01:35:35,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:35:35,013 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:35:35,013 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 01:35:35,013 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:35:35,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:35:35,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1791692171, now seen corresponding path program 1 times [2020-10-27 01:35:35,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:35:35,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [302267759] [2020-10-27 01:35:35,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:35:35,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:35:35,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:35,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:36,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:35:36,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-27 01:35:36,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:35:36,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1322 [2020-10-27 01:35:36,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:35:36,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 01:35:36,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-27 01:35:36,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 01:35:36,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:35:36,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:35:36,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:35:36,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:36,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:35:36,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:35:36,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:35:36,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:35:36,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:35:36,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:35:36,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:35:36,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:35:36,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:35:36,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:35:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:35:36,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:36,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:35:36,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:35:36,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:35:36,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:35:36,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:35:36,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:35:36,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:35:36,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:35:36,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:35:36,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 01:35:36,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:35:36,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:36,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:35:36,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:35:36,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:35:36,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 01:35:36,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:35:36,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 01:35:36,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:35:36,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 01:35:36,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:35:36,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 01:35:36,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:35:36,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:36,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:35:36,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:35:36,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:35:36,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 01:35:36,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:35:36,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:35:36,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:35:36,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:35:36,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:35:36,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-27 01:35:36,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:35:36,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:36,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:35:36,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:35:36,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:35:36,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 01:35:36,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:35:36,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:35:36,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:35:36,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:35:36,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:35:36,578 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-27 01:35:36,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [302267759] [2020-10-27 01:35:36,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:35:36,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-27 01:35:36,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576735048] [2020-10-27 01:35:36,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 01:35:36,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:35:36,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 01:35:36,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-27 01:35:36,582 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 10 states. [2020-10-27 01:35:37,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:35:37,039 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2020-10-27 01:35:37,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 01:35:37,040 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 37 [2020-10-27 01:35:37,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:35:37,041 INFO L225 Difference]: With dead ends: 53 [2020-10-27 01:35:37,041 INFO L226 Difference]: Without dead ends: 49 [2020-10-27 01:35:37,042 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2020-10-27 01:35:37,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-27 01:35:37,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 35. [2020-10-27 01:35:37,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-27 01:35:37,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2020-10-27 01:35:37,052 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 37 [2020-10-27 01:35:37,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:35:37,052 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2020-10-27 01:35:37,053 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 01:35:37,053 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2020-10-27 01:35:37,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-27 01:35:37,054 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:35:37,054 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:35:37,054 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 01:35:37,054 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:35:37,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:35:37,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1278041966, now seen corresponding path program 1 times [2020-10-27 01:35:37,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:35:37,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1774804674] [2020-10-27 01:35:37,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:35:37,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:35:37,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:37,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:35:37,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 01:35:37,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:35:37,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 568 [2020-10-27 01:35:37,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:35:37,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 01:35:37,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-27 01:35:37,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 01:35:37,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:35:38,031 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 49 [2020-10-27 01:35:38,345 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 62 [2020-10-27 01:35:38,811 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 61 [2020-10-27 01:35:38,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:35:38,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:35:38,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:38,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:35:38,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:35:38,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:35:38,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:35:38,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:35:38,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:35:38,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:35:38,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:35:38,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:35:38,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:35:38,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:35:38,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:38,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:35:38,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:35:38,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:35:38,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:35:38,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:35:38,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:35:38,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:35:38,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:35:38,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:35:38,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 01:35:38,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:35:38,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:38,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:35:38,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:35:38,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:35:38,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:35:38,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:35:38,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:35:38,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:35:38,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:35:38,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:35:38,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 01:35:38,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:35:38,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:38,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:35:38,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:35:38,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:35:38,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 01:35:38,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:35:38,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:35:38,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:35:38,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:35:38,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:35:38,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-27 01:35:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:35:38,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:39,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:35:39,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:35:39,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:35:39,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-27 01:35:39,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:35:39,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 01:35:39,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:35:39,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 01:35:39,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:35:39,062 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-27 01:35:39,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1774804674] [2020-10-27 01:35:39,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:35:39,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 01:35:39,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694288460] [2020-10-27 01:35:39,063 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 01:35:39,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:35:39,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 01:35:39,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-10-27 01:35:39,064 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 12 states. [2020-10-27 01:35:39,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:35:39,797 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2020-10-27 01:35:39,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 01:35:39,798 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 39 [2020-10-27 01:35:39,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:35:39,799 INFO L225 Difference]: With dead ends: 46 [2020-10-27 01:35:39,799 INFO L226 Difference]: Without dead ends: 42 [2020-10-27 01:35:39,800 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2020-10-27 01:35:39,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-27 01:35:39,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2020-10-27 01:35:39,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-27 01:35:39,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2020-10-27 01:35:39,818 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 39 [2020-10-27 01:35:39,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:35:39,819 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2020-10-27 01:35:39,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 01:35:39,821 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2020-10-27 01:35:39,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-27 01:35:39,824 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:35:39,824 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:35:39,824 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 01:35:39,825 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:35:39,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:35:39,826 INFO L82 PathProgramCache]: Analyzing trace with hash -164662083, now seen corresponding path program 1 times [2020-10-27 01:35:39,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:35:39,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2073265177] [2020-10-27 01:35:39,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:35:39,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:35:39,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:40,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:41,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:35:41,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-27 01:35:41,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:35:41,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1147 [2020-10-27 01:35:41,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:35:41,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 01:35:41,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-27 01:35:41,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 01:35:41,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:35:41,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:35:41,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:35:41,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:41,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:35:41,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:35:41,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:35:41,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:35:41,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:35:41,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:35:41,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:35:41,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:35:41,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:35:41,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:35:41,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:35:41,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:41,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:35:41,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:35:41,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:35:41,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:35:41,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:35:41,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:35:41,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:35:41,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:35:41,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:35:41,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 01:35:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:35:41,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:41,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:35:41,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:35:41,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:35:41,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:35:41,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:35:41,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:35:41,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:35:41,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:35:41,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:35:41,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 01:35:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:35:41,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:41,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:35:41,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:35:41,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:35:41,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 01:35:41,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:35:41,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:35:41,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:35:41,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:35:41,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:35:41,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-27 01:35:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:35:41,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:41,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:35:41,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:35:41,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:35:41,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 01:35:41,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:35:41,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:35:41,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:35:41,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:35:41,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:35:41,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 01:35:41,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:35:41,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:35:41,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:35:41,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:35:41,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:35:41,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 01:35:41,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:35:41,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:35:41,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:35:41,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:35:41,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:35:41,160 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-27 01:35:41,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2073265177] [2020-10-27 01:35:41,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:35:41,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 01:35:41,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748324817] [2020-10-27 01:35:41,162 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 01:35:41,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:35:41,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 01:35:41,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-27 01:35:41,163 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 5 states. [2020-10-27 01:35:45,443 WARN L838 $PredicateComparison]: unable to prove that (and (<= (+ (* 4294967296 (div (+ (* (div (+ c_main_~index2~0 1) 4294967296) 4294967296) (* c_main_~index2~0 (- 1)) c_main_~index1~0 4294967294) 4294967296)) 1) c_main_~index1~0) (<= (+ (* 4294967296 (div c_main_~index2~0 4294967296)) c_main_~index1~0 1) (+ (* 4294967296 (div c_main_~index1~0 4294967296)) c_main_~index2~0))) is different from false [2020-10-27 01:35:45,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:35:45,483 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2020-10-27 01:35:45,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 01:35:45,484 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 46 [2020-10-27 01:35:45,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:35:45,484 INFO L225 Difference]: With dead ends: 45 [2020-10-27 01:35:45,485 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 01:35:45,485 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2020-10-27 01:35:45,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 01:35:45,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 01:35:45,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 01:35:45,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 01:35:45,486 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2020-10-27 01:35:45,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:35:45,486 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 01:35:45,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 01:35:45,486 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 01:35:45,487 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 01:35:45,487 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 01:35:45,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 01:35:58,200 WARN L193 SmtUtils]: Spent 12.56 s on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2020-10-27 01:36:02,486 WARN L193 SmtUtils]: Spent 4.28 s on a formula simplification that was a NOOP. DAG size: 83 [2020-10-27 01:36:09,120 WARN L193 SmtUtils]: Spent 6.39 s on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-27 01:36:09,125 INFO L274 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-10-27 01:36:09,126 INFO L274 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-10-27 01:36:09,126 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 18) no Hoare annotation was computed. [2020-10-27 01:36:09,126 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 18) the Hoare annotation is: true [2020-10-27 01:36:09,126 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2020-10-27 01:36:09,126 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 01:36:09,127 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2020-10-27 01:36:09,127 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 01:36:09,127 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 01:36:09,128 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-27 01:36:09,128 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 01:36:09,128 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 01:36:09,128 INFO L277 CegarLoopResult]: At program point assume_abort_if_notENTRY(lines 20 22) the Hoare annotation is: true [2020-10-27 01:36:09,128 INFO L274 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-10-27 01:36:09,129 INFO L274 CegarLoopResult]: For program point L21-2(lines 20 22) no Hoare annotation was computed. [2020-10-27 01:36:09,129 INFO L274 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 20 22) no Hoare annotation was computed. [2020-10-27 01:36:09,129 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 33 61) no Hoare annotation was computed. [2020-10-27 01:36:09,130 INFO L270 CegarLoopResult]: At program point L54-2(lines 54 58) the Hoare annotation is: (let ((.cse14 (div main_~index1~0 4294967296)) (.cse15 (div main_~index2~0 4294967296))) (let ((.cse12 (* 4294967296 .cse15)) (.cse13 (* 4294967296 .cse14))) (or (and (let ((.cse3 (select |#memory_int| |main_~#array~0.base|)) (.cse10 (* .cse15 (- 17179869184))) (.cse11 (* main_~index2~0 4))) (let ((.cse2 (select .cse3 (+ .cse10 .cse11 |main_~#array~0.offset|))) (.cse4 (* .cse14 (- 17179869184))) (.cse5 (* main_~index1~0 4)) (.cse0 (+ .cse13 2147483647))) (or (and (<= main_~index1~0 .cse0) (<= (let ((.cse1 (select .cse3 (+ .cse4 .cse5 |main_~#array~0.offset|)))) (+ .cse1 (* 4294967296 (div (+ (* .cse1 (- 1)) .cse2 4294967295) 4294967296)))) .cse2)) (and (let ((.cse7 (select .cse3 (+ .cse4 .cse5 |main_~#array~0.offset| (- 17179869184))))) (let ((.cse6 (+ .cse12 2147483647)) (.cse9 (* .cse7 (- 1)))) (or (and (< .cse6 main_~index2~0) (let ((.cse8 (select .cse3 (+ .cse10 .cse11 |main_~#array~0.offset| (- 17179869184))))) (<= (+ .cse7 (* 4294967296 (div (+ .cse8 .cse9 4294967295) 4294967296))) .cse8))) (and (<= main_~index2~0 .cse6) (<= (+ .cse7 (* 4294967296 (div (+ .cse2 .cse9 4294967295) 4294967296))) .cse2))))) (< .cse0 main_~index1~0))))) (<= (+ (* 4294967296 (div (+ (* (div (+ main_~index2~0 1) 4294967296) 4294967296) (* main_~index2~0 (- 1)) main_~index1~0 4294967294) 4294967296)) 1) main_~index1~0)) (<= (+ .cse12 main_~index1~0 1) (+ .cse13 main_~index2~0))))) [2020-10-27 01:36:09,131 INFO L270 CegarLoopResult]: At program point L46(line 46) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~index2~0 4294967296)))) (and (or (<= main_~index2~0 (+ .cse0 99998)) (and (<= main_~loop_entered~0 (* 4294967296 (div main_~loop_entered~0 4294967296))) (<= main_~index2~0 (+ .cse0 99999)) (<= 0 main_~loop_entered~0))) (<= (+ .cse0 main_~index1~0 1) (+ (* 4294967296 (div main_~index1~0 4294967296)) main_~index2~0)))) [2020-10-27 01:36:09,131 INFO L274 CegarLoopResult]: For program point L46-1(line 46) no Hoare annotation was computed. [2020-10-27 01:36:09,131 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 33 61) no Hoare annotation was computed. [2020-10-27 01:36:09,131 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 33 61) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-10-27 01:36:09,132 INFO L270 CegarLoopResult]: At program point L55(line 55) the Hoare annotation is: (let ((.cse1 (* 4294967296 (div |main_#t~mem10| 4294967296))) (.cse0 (+ (* 4294967296 (div |main_#t~mem9| 4294967296)) |main_#t~mem10|))) (and (< .cse0 (+ |main_#t~mem9| .cse1 1)) (<= (+ (* 4294967296 (div (+ (* (div (+ main_~index2~0 1) 4294967296) 4294967296) (* main_~index2~0 (- 1)) main_~index1~0 4294967294) 4294967296)) 1) main_~index1~0) (<= (+ |main_#t~mem9| .cse1) .cse0) (let ((.cse17 (div main_~index2~0 4294967296)) (.cse16 (div main_~index1~0 4294967296))) (let ((.cse3 (* 4294967296 .cse16)) (.cse7 (select |#memory_int| |main_~#array~0.base|)) (.cse14 (* .cse17 (- 17179869184))) (.cse15 (* main_~index2~0 4))) (let ((.cse6 (select .cse7 (+ .cse14 .cse15 |main_~#array~0.offset|))) (.cse2 (* 4294967296 .cse17)) (.cse8 (* .cse16 (- 17179869184))) (.cse9 (* main_~index1~0 4)) (.cse4 (+ .cse3 2147483647))) (or (<= (+ .cse2 main_~index1~0) (+ .cse3 main_~index2~0)) (and (<= main_~index1~0 .cse4) (<= (let ((.cse5 (select .cse7 (+ .cse8 .cse9 |main_~#array~0.offset|)))) (+ .cse5 (* 4294967296 (div (+ (* .cse5 (- 1)) .cse6 4294967295) 4294967296)))) .cse6)) (and (let ((.cse11 (select .cse7 (+ .cse8 .cse9 |main_~#array~0.offset| (- 17179869184))))) (let ((.cse10 (+ .cse2 2147483647)) (.cse13 (* .cse11 (- 1)))) (or (and (< .cse10 main_~index2~0) (let ((.cse12 (select .cse7 (+ .cse14 .cse15 |main_~#array~0.offset| (- 17179869184))))) (<= (+ .cse11 (* 4294967296 (div (+ .cse12 .cse13 4294967295) 4294967296))) .cse12))) (and (<= main_~index2~0 .cse10) (<= (+ .cse11 (* 4294967296 (div (+ .cse6 .cse13 4294967295) 4294967296))) .cse6))))) (< .cse4 main_~index1~0)))))))) [2020-10-27 01:36:09,132 INFO L274 CegarLoopResult]: For program point L55-1(line 55) no Hoare annotation was computed. [2020-10-27 01:36:09,133 INFO L274 CegarLoopResult]: For program point L53(lines 53 59) no Hoare annotation was computed. [2020-10-27 01:36:09,133 INFO L270 CegarLoopResult]: At program point L47(line 47) the Hoare annotation is: (let ((.cse2 (div main_~index2~0 4294967296))) (let ((.cse0 (select |#memory_int| |main_~#array~0.base|)) (.cse3 (* 4294967296 .cse2)) (.cse1 (div main_~index1~0 4294967296))) (and (= (select .cse0 (+ (* .cse1 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)) |main_#t~mem5|) (= (select .cse0 (+ (* .cse2 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)) |main_#t~mem6|) (<= main_~index2~0 (+ .cse3 99999)) (<= (+ .cse3 main_~index1~0 1) (+ (* 4294967296 .cse1) main_~index2~0))))) [2020-10-27 01:36:09,134 INFO L274 CegarLoopResult]: For program point L47-1(line 47) no Hoare annotation was computed. [2020-10-27 01:36:09,134 INFO L270 CegarLoopResult]: At program point L45-1(lines 43 51) the Hoare annotation is: (let ((.cse5 (div main_~index1~0 4294967296)) (.cse6 (div main_~index2~0 4294967296))) (let ((.cse1 (* 4294967296 .cse6)) (.cse0 (* 4294967296 .cse5))) (or (and (<= main_~loop_entered~0 (* 4294967296 (div main_~loop_entered~0 4294967296))) (< main_~index1~0 (+ .cse0 100000)) (<= main_~index2~0 (+ .cse1 99999)) (<= 0 main_~loop_entered~0)) (and (<= main_~index2~0 (+ .cse1 99998)) (or (<= (+ .cse1 main_~index1~0) (+ .cse0 main_~index2~0)) (and (<= main_~index1~0 (+ .cse0 2147483647)) (let ((.cse4 (select |#memory_int| |main_~#array~0.base|))) (let ((.cse3 (select .cse4 (+ (* .cse6 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)))) (<= (let ((.cse2 (select .cse4 (+ (* .cse5 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (+ .cse2 (* 4294967296 (div (+ (* .cse2 (- 1)) .cse3 4294967295) 4294967296)))) .cse3))))) (<= (+ (* 4294967296 (div (+ (* (div (+ main_~index2~0 1) 4294967296) 4294967296) (* main_~index2~0 (- 1)) main_~index1~0 4294967294) 4294967296)) 1) main_~index1~0))))) [2020-10-27 01:36:09,134 INFO L270 CegarLoopResult]: At program point L43(line 43) the Hoare annotation is: (and (<= main_~loop_entered~0 (* 4294967296 (div main_~loop_entered~0 4294967296))) (< main_~index1~0 (+ (* 4294967296 (div main_~index1~0 4294967296)) 100000)) (<= 0 main_~loop_entered~0)) [2020-10-27 01:36:09,134 INFO L274 CegarLoopResult]: For program point L45-2(lines 34 61) no Hoare annotation was computed. [2020-10-27 01:36:09,134 INFO L270 CegarLoopResult]: At program point L41(line 41) the Hoare annotation is: (and (<= main_~loop_entered~0 (* 4294967296 (div main_~loop_entered~0 4294967296))) (<= 0 main_~loop_entered~0)) [2020-10-27 01:36:09,135 INFO L274 CegarLoopResult]: For program point L41-1(line 41) no Hoare annotation was computed. [2020-10-27 01:36:09,136 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 23 29) the Hoare annotation is: true [2020-10-27 01:36:09,136 INFO L270 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-10-27 01:36:09,136 INFO L274 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 23 29) no Hoare annotation was computed. [2020-10-27 01:36:09,136 INFO L274 CegarLoopResult]: For program point L25(lines 25 27) no Hoare annotation was computed. [2020-10-27 01:36:09,137 INFO L274 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed. [2020-10-27 01:36:09,137 INFO L274 CegarLoopResult]: For program point L25-2(lines 23 29) no Hoare annotation was computed. [2020-10-27 01:36:09,155 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,157 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,157 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,157 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,169 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,170 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,170 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,170 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,173 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,173 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,173 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,174 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,174 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,174 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,174 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,174 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,175 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,175 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,175 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,175 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,177 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,177 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,177 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,178 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,178 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,178 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,178 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,178 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,179 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,179 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,179 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,179 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 01:36:09 BoogieIcfgContainer [2020-10-27 01:36:09,182 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 01:36:09,184 INFO L168 Benchmark]: Toolchain (without parser) took 37754.63 ms. Allocated memory was 154.1 MB in the beginning and 282.1 MB in the end (delta: 127.9 MB). Free memory was 130.3 MB in the beginning and 153.4 MB in the end (delta: -23.1 MB). Peak memory consumption was 106.1 MB. Max. memory is 8.0 GB. [2020-10-27 01:36:09,185 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 154.1 MB. Free memory is still 125.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 01:36:09,186 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.40 ms. Allocated memory is still 154.1 MB. Free memory was 129.7 MB in the beginning and 119.8 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-27 01:36:09,186 INFO L168 Benchmark]: Boogie Preprocessor took 38.48 ms. Allocated memory is still 154.1 MB. Free memory was 119.8 MB in the beginning and 118.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-27 01:36:09,187 INFO L168 Benchmark]: RCFGBuilder took 553.18 ms. Allocated memory is still 154.1 MB. Free memory was 118.2 MB in the beginning and 102.0 MB in the end (delta: 16.2 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2020-10-27 01:36:09,188 INFO L168 Benchmark]: TraceAbstraction took 36837.22 ms. Allocated memory was 154.1 MB in the beginning and 282.1 MB in the end (delta: 127.9 MB). Free memory was 137.9 MB in the beginning and 153.4 MB in the end (delta: -15.6 MB). Peak memory consumption was 112.7 MB. Max. memory is 8.0 GB. [2020-10-27 01:36:09,192 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 154.1 MB. Free memory is still 125.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 289.40 ms. Allocated memory is still 154.1 MB. Free memory was 129.7 MB in the beginning and 119.8 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 38.48 ms. Allocated memory is still 154.1 MB. Free memory was 119.8 MB in the beginning and 118.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 553.18 ms. Allocated memory is still 154.1 MB. Free memory was 118.2 MB in the beginning and 102.0 MB in the end (delta: 16.2 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 36837.22 ms. Allocated memory was 154.1 MB in the beginning and 282.1 MB in the end (delta: 127.9 MB). Free memory was 137.9 MB in the beginning and 153.4 MB in the end (delta: -15.6 MB). Peak memory consumption was 112.7 MB. Max. memory is 8.0 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 43]: Loop Invariant [2020-10-27 01:36:09,203 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,204 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,204 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,204 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,205 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,205 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,205 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,206 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((loop_entered <= 4294967296 * (loop_entered / 4294967296) && index1 < 4294967296 * (index1 / 4294967296) + 100000) && index2 <= 4294967296 * (index2 / 4294967296) + 99999) && 0 <= loop_entered) || ((index2 <= 4294967296 * (index2 / 4294967296) + 99998 && (4294967296 * (index2 / 4294967296) + index1 <= 4294967296 * (index1 / 4294967296) + index2 || (index1 <= 4294967296 * (index1 / 4294967296) + 2147483647 && unknown-#memory_int-unknown[array][index1 / 4294967296 * -17179869184 + index1 * 4 + array] + 4294967296 * ((unknown-#memory_int-unknown[array][index1 / 4294967296 * -17179869184 + index1 * 4 + array] * -1 + unknown-#memory_int-unknown[array][index2 / 4294967296 * -17179869184 + index2 * 4 + array] + 4294967295) / 4294967296) <= unknown-#memory_int-unknown[array][index2 / 4294967296 * -17179869184 + index2 * 4 + array]))) && 4294967296 * (((index2 + 1) / 4294967296 * 4294967296 + index2 * -1 + index1 + 4294967294) / 4294967296) + 1 <= index1) - InvariantResult [Line: 54]: Loop Invariant [2020-10-27 01:36:09,207 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,207 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,207 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,207 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,208 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,208 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,208 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,208 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,208 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,209 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,209 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,209 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,210 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,210 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,211 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,211 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,211 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,211 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,212 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,212 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,212 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,212 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,212 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:36:09,212 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((index1 <= 4294967296 * (index1 / 4294967296) + 2147483647 && unknown-#memory_int-unknown[array][index1 / 4294967296 * -17179869184 + index1 * 4 + array] + 4294967296 * ((unknown-#memory_int-unknown[array][index1 / 4294967296 * -17179869184 + index1 * 4 + array] * -1 + unknown-#memory_int-unknown[array][index2 / 4294967296 * -17179869184 + index2 * 4 + array] + 4294967295) / 4294967296) <= unknown-#memory_int-unknown[array][index2 / 4294967296 * -17179869184 + index2 * 4 + array]) || (((4294967296 * (index2 / 4294967296) + 2147483647 < index2 && unknown-#memory_int-unknown[array][index1 / 4294967296 * -17179869184 + index1 * 4 + array + -17179869184] + 4294967296 * ((unknown-#memory_int-unknown[array][index2 / 4294967296 * -17179869184 + index2 * 4 + array + -17179869184] + unknown-#memory_int-unknown[array][index1 / 4294967296 * -17179869184 + index1 * 4 + array + -17179869184] * -1 + 4294967295) / 4294967296) <= unknown-#memory_int-unknown[array][index2 / 4294967296 * -17179869184 + index2 * 4 + array + -17179869184]) || (index2 <= 4294967296 * (index2 / 4294967296) + 2147483647 && unknown-#memory_int-unknown[array][index1 / 4294967296 * -17179869184 + index1 * 4 + array + -17179869184] + 4294967296 * ((unknown-#memory_int-unknown[array][index2 / 4294967296 * -17179869184 + index2 * 4 + array] + unknown-#memory_int-unknown[array][index1 / 4294967296 * -17179869184 + index1 * 4 + array + -17179869184] * -1 + 4294967295) / 4294967296) <= unknown-#memory_int-unknown[array][index2 / 4294967296 * -17179869184 + index2 * 4 + array])) && 4294967296 * (index1 / 4294967296) + 2147483647 < index1)) && 4294967296 * (((index2 + 1) / 4294967296 * 4294967296 + index2 * -1 + index1 + 4294967294) / 4294967296) + 1 <= index1) || 4294967296 * (index2 / 4294967296) + index1 + 1 <= 4294967296 * (index1 / 4294967296) + index2 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.0s, OverallIterations: 6, TraceHistogramMax: 3, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 23.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 163 SDtfs, 105 SDslu, 279 SDs, 0 SdLazy, 624 SolverSat, 69 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 105 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 25 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 36 PreInvPairs, 45 NumberOfFragments, 928 HoareAnnotationTreeSize, 36 FomulaSimplifications, 116 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 15 FomulaSimplificationsInter, 635 FormulaSimplificationTreeSizeReductionInter, 23.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 196 NumberOfCodeBlocks, 196 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 190 ConstructedInterpolants, 0 QuantifiedInterpolants, 76369 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 61/66 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...