/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/nec40.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:09:37,009 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:09:37,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:09:37,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:09:37,040 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:09:37,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:09:37,043 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:09:37,045 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:09:37,048 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:09:37,049 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:09:37,050 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:09:37,051 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:09:37,052 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:09:37,053 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:09:37,055 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:09:37,056 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:09:37,058 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:09:37,059 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:09:37,061 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:09:37,063 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:09:37,065 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:09:37,067 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:09:37,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:09:37,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:09:37,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:09:37,073 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:09:37,073 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:09:37,074 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:09:37,075 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:09:37,076 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:09:37,076 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:09:37,077 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:09:37,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:09:37,079 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:09:37,081 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:09:37,081 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:09:37,082 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:09:37,082 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:09:37,082 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:09:37,084 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:09:37,085 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:09:37,085 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 01:09:37,114 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:09:37,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:09:37,116 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:09:37,116 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:09:37,117 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:09:37,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:09:37,117 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:09:37,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:09:37,117 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:09:37,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:09:37,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:09:37,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:09:37,118 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:09:37,119 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:09:37,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:09:37,119 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:09:37,119 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:09:37,119 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:09:37,120 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:09:37,120 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:09:37,120 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:09:37,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:09:37,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:09:37,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:09:37,123 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:09:37,123 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:09:37,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:09:37,124 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:09:37,124 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:09:37,124 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; [2020-09-25 01:09:37,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:09:37,673 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:09:37,680 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:09:37,683 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:09:37,684 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:09:37,685 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/nec40.c [2020-09-25 01:09:37,770 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a0d9a386a/2ed53c231e37494aa09f69600ada02b2/FLAG7b2fdc98f [2020-09-25 01:09:38,310 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:09:38,311 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/nec40.c [2020-09-25 01:09:38,322 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a0d9a386a/2ed53c231e37494aa09f69600ada02b2/FLAG7b2fdc98f [2020-09-25 01:09:38,688 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a0d9a386a/2ed53c231e37494aa09f69600ada02b2 [2020-09-25 01:09:38,706 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:09:38,729 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:09:38,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:09:38,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:09:38,740 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:09:38,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:09:38" (1/1) ... [2020-09-25 01:09:38,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e983976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:38, skipping insertion in model container [2020-09-25 01:09:38,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:09:38" (1/1) ... [2020-09-25 01:09:38,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:09:38,788 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:09:39,113 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:09:39,130 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:09:39,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:09:39,187 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:09:39,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:39 WrapperNode [2020-09-25 01:09:39,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:09:39,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:09:39,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:09:39,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:09:39,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:39" (1/1) ... [2020-09-25 01:09:39,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:39" (1/1) ... [2020-09-25 01:09:39,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:39" (1/1) ... [2020-09-25 01:09:39,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:39" (1/1) ... [2020-09-25 01:09:39,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:39" (1/1) ... [2020-09-25 01:09:39,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:39" (1/1) ... [2020-09-25 01:09:39,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:39" (1/1) ... [2020-09-25 01:09:39,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:09:39,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:09:39,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:09:39,336 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:09:39,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:39" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:09:39,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:09:39,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:09:39,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 01:09:39,426 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:09:39,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:09:39,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 01:09:39,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:09:39,427 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:09:39,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:09:39,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:09:39,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:09:39,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:09:39,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:09:39,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:09:39,700 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:09:39,701 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 01:09:39,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:09:39 BoogieIcfgContainer [2020-09-25 01:09:39,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:09:39,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:09:39,712 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:09:39,716 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:09:39,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:09:38" (1/3) ... [2020-09-25 01:09:39,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@486a831a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:09:39, skipping insertion in model container [2020-09-25 01:09:39,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:39" (2/3) ... [2020-09-25 01:09:39,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@486a831a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:09:39, skipping insertion in model container [2020-09-25 01:09:39,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:09:39" (3/3) ... [2020-09-25 01:09:39,722 INFO L109 eAbstractionObserver]: Analyzing ICFG nec40.c [2020-09-25 01:09:39,739 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:09:39,751 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:09:39,787 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:09:39,832 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:09:39,832 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:09:39,832 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:09:39,833 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:09:39,833 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:09:39,833 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:09:39,833 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:09:39,833 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:09:39,863 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2020-09-25 01:09:39,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-09-25 01:09:39,874 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:09:39,875 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:09:39,876 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:09:39,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:09:39,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1729523867, now seen corresponding path program 1 times [2020-09-25 01:09:39,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:09:39,894 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [80110662] [2020-09-25 01:09:39,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:09:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:09:40,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:09:40,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:09:40,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:09:41,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:09:41,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 01:09:41,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:09:41,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1023 [2020-09-25 01:09:41,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:09:41,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:09:41,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 01:09:41,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:09:41,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 01:09:41,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:09:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:09:41,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:09:41,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:09:41,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 01:09:41,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:09:41,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 01:09:41,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:09:41,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:09:41,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:09:41,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:09:41,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:09:41,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:09:41,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [80110662] [2020-09-25 01:09:41,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:09:41,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 01:09:41,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133987130] [2020-09-25 01:09:41,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 01:09:41,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:09:41,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 01:09:41,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:09:41,344 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2020-09-25 01:09:41,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:09:41,541 INFO L93 Difference]: Finished difference Result 64 states and 71 transitions. [2020-09-25 01:09:41,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 01:09:41,543 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2020-09-25 01:09:41,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:09:41,554 INFO L225 Difference]: With dead ends: 64 [2020-09-25 01:09:41,554 INFO L226 Difference]: Without dead ends: 38 [2020-09-25 01:09:41,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:09:41,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-25 01:09:41,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-25 01:09:41,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-25 01:09:41,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2020-09-25 01:09:41,604 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 28 [2020-09-25 01:09:41,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:09:41,605 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2020-09-25 01:09:41,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 01:09:41,605 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2020-09-25 01:09:41,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-25 01:09:41,607 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:09:41,607 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:09:41,607 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:09:41,608 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:09:41,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:09:41,608 INFO L82 PathProgramCache]: Analyzing trace with hash 736321097, now seen corresponding path program 1 times [2020-09-25 01:09:41,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:09:41,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1116922088] [2020-09-25 01:09:41,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:09:41,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:09:41,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:09:41,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:09:42,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:09:42,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 01:09:42,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:09:42,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 422 [2020-09-25 01:09:42,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:09:42,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:09:42,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 01:09:42,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:09:42,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:09:42,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:09:42,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:09:42,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:09:42,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:09:42,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 01:09:42,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:09:42,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 01:09:42,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:09:42,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:09:42,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:09:42,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:09:42,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:09:42,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:09:42,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1116922088] [2020-09-25 01:09:42,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:09:42,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:09:42,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779903622] [2020-09-25 01:09:42,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:09:42,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:09:42,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:09:42,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:09:42,183 INFO L87 Difference]: Start difference. First operand 38 states and 38 transitions. Second operand 4 states. [2020-09-25 01:09:42,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:09:42,322 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions. [2020-09-25 01:09:42,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 01:09:42,323 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-09-25 01:09:42,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:09:42,324 INFO L225 Difference]: With dead ends: 57 [2020-09-25 01:09:42,325 INFO L226 Difference]: Without dead ends: 46 [2020-09-25 01:09:42,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:09:42,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-25 01:09:42,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 40. [2020-09-25 01:09:42,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-25 01:09:42,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2020-09-25 01:09:42,336 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 30 [2020-09-25 01:09:42,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:09:42,336 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2020-09-25 01:09:42,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:09:42,336 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2020-09-25 01:09:42,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-09-25 01:09:42,338 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:09:42,338 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:09:42,338 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:09:42,339 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:09:42,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:09:42,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1137669723, now seen corresponding path program 1 times [2020-09-25 01:09:42,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:09:42,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2001394018] [2020-09-25 01:09:42,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:09:42,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:09:42,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:09:42,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:09:43,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:09:43,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 01:09:43,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:09:43,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 686 [2020-09-25 01:09:43,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:09:43,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 01:09:43,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 01:09:43,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 01:09:43,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:09:43,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:09:43,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:09:43,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:09:43,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:09:43,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 01:09:43,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:09:43,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 01:09:43,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:09:43,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 01:09:43,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:09:43,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:09:43,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:09:43,407 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:09:43,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2001394018] [2020-09-25 01:09:43,408 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 01:09:43,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 01:09:43,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354408750] [2020-09-25 01:09:43,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 01:09:43,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:09:43,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 01:09:43,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 01:09:43,412 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand 8 states. [2020-09-25 01:09:43,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:09:43,596 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2020-09-25 01:09:43,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 01:09:43,596 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 39 [2020-09-25 01:09:43,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:09:43,597 INFO L225 Difference]: With dead ends: 40 [2020-09-25 01:09:43,597 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 01:09:43,598 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-25 01:09:43,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 01:09:43,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 01:09:43,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 01:09:43,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 01:09:43,599 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2020-09-25 01:09:43,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:09:43,600 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 01:09:43,600 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 01:09:43,600 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 01:09:43,600 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 01:09:43,600 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:09:43,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 01:09:43,782 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-25 01:09:43,782 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-25 01:09:43,782 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-25 01:09:43,782 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 01:09:43,782 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-25 01:09:43,782 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-09-25 01:09:43,783 INFO L268 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed. [2020-09-25 01:09:43,783 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-09-25 01:09:43,783 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~j~0 |old(~j~0)|) (= |~#x~0.offset| |old(~#x~0.offset)|) (= |~#y~0.offset| |old(~#y~0.offset)|) (= ~i~0 |old(~i~0)|) (= |old(#length)| |#length|) (= ~k~0 |old(~k~0)|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.base| |old(#NULL.base)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |~#y~0.base| |old(~#y~0.base)|)) [2020-09-25 01:09:43,783 INFO L268 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-09-25 01:09:43,784 INFO L268 CegarLoopResult]: For program point L11-3(line 11) no Hoare annotation was computed. [2020-09-25 01:09:43,784 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 01:09:43,785 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 01:09:43,785 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| |~#x~0.base|) .cse0) (<= ~i~0 0) (= .cse0 (select |#memory_int| |~#y~0.base|)))) [2020-09-25 01:09:43,785 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 01:09:43,785 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 01:09:43,785 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-25 01:09:43,785 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 14 29) no Hoare annotation was computed. [2020-09-25 01:09:43,786 INFO L268 CegarLoopResult]: For program point L25-1(lines 25 26) no Hoare annotation was computed. [2020-09-25 01:09:43,786 INFO L268 CegarLoopResult]: For program point L25-2(line 25) no Hoare annotation was computed. [2020-09-25 01:09:43,786 INFO L268 CegarLoopResult]: For program point L25-3(line 25) no Hoare annotation was computed. [2020-09-25 01:09:43,786 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 01:09:43,786 INFO L268 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-09-25 01:09:43,786 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-25 01:09:43,786 INFO L268 CegarLoopResult]: For program point L19-2(line 19) no Hoare annotation was computed. [2020-09-25 01:09:43,787 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 01:09:43,787 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-25 01:09:43,787 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 14 29) no Hoare annotation was computed. [2020-09-25 01:09:43,787 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 14 29) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (not (= .cse0 (select |old(#memory_int)| |~#x~0.base|))) (not (= .cse0 (select |old(#memory_int)| |~#y~0.base|))) (not (<= |old(~i~0)| 0)) (and (= ~i~0 |old(~i~0)|) (= ~k~0 |old(~k~0)|) (= |#memory_int| |old(#memory_int)|)))) [2020-09-25 01:09:43,788 INFO L264 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (not (= .cse0 (select |old(#memory_int)| |~#x~0.base|))) (not (= .cse0 (select |old(#memory_int)| |~#y~0.base|))) (not (<= |old(~i~0)| 0)))) [2020-09-25 01:09:43,791 INFO L268 CegarLoopResult]: For program point L24(lines 24 26) no Hoare annotation was computed. [2020-09-25 01:09:43,791 INFO L268 CegarLoopResult]: For program point L22(lines 14 29) no Hoare annotation was computed. [2020-09-25 01:09:43,792 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-25 01:09:43,793 INFO L268 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-09-25 01:09:43,793 INFO L268 CegarLoopResult]: For program point L20-2(line 20) no Hoare annotation was computed. [2020-09-25 01:09:43,793 INFO L268 CegarLoopResult]: For program point L18-1(lines 18 21) no Hoare annotation was computed. [2020-09-25 01:09:43,793 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-09-25 01:09:43,793 INFO L268 CegarLoopResult]: For program point L18-4(line 18) no Hoare annotation was computed. [2020-09-25 01:09:43,793 INFO L264 CegarLoopResult]: At program point L18-5(lines 18 21) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (and (= (select |#memory_int| |~#x~0.base|) .cse0) (= .cse0 (select |#memory_int| |~#y~0.base|))) (not (= .cse0 (select |old(#memory_int)| |~#x~0.base|))) (not (= .cse0 (select |old(#memory_int)| |~#y~0.base|))) (not (<= |old(~i~0)| 0)))) [2020-09-25 01:09:43,794 INFO L268 CegarLoopResult]: For program point L18-6(lines 18 21) no Hoare annotation was computed. [2020-09-25 01:09:43,794 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-09-25 01:09:43,794 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-09-25 01:09:43,794 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-25 01:09:43,794 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-09-25 01:09:43,795 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-09-25 01:09:43,796 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-09-25 01:09:43,825 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:693) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:260) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:217) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-09-25 01:09:43,838 INFO L168 Benchmark]: Toolchain (without parser) took 5123.19 ms. Allocated memory was 136.3 MB in the beginning and 254.8 MB in the end (delta: 118.5 MB). Free memory was 99.2 MB in the beginning and 140.8 MB in the end (delta: -41.6 MB). Peak memory consumption was 76.9 MB. Max. memory is 7.1 GB. [2020-09-25 01:09:43,839 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 136.3 MB. Free memory was 117.9 MB in the beginning and 117.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 01:09:43,839 INFO L168 Benchmark]: CACSL2BoogieTranslator took 458.98 ms. Allocated memory is still 136.3 MB. Free memory was 98.6 MB in the beginning and 88.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-09-25 01:09:43,840 INFO L168 Benchmark]: Boogie Preprocessor took 145.23 ms. Allocated memory was 136.3 MB in the beginning and 198.2 MB in the end (delta: 61.9 MB). Free memory was 88.6 MB in the beginning and 174.9 MB in the end (delta: -86.4 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. [2020-09-25 01:09:43,848 INFO L168 Benchmark]: RCFGBuilder took 374.06 ms. Allocated memory is still 198.2 MB. Free memory was 174.9 MB in the beginning and 158.3 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. [2020-09-25 01:09:43,850 INFO L168 Benchmark]: TraceAbstraction took 4117.22 ms. Allocated memory was 198.2 MB in the beginning and 254.8 MB in the end (delta: 56.6 MB). Free memory was 158.3 MB in the beginning and 140.8 MB in the end (delta: 17.5 MB). Peak memory consumption was 74.2 MB. Max. memory is 7.1 GB. [2020-09-25 01:09:43,854 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 136.3 MB. Free memory was 117.9 MB in the beginning and 117.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 458.98 ms. Allocated memory is still 136.3 MB. Free memory was 98.6 MB in the beginning and 88.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 145.23 ms. Allocated memory was 136.3 MB in the beginning and 198.2 MB in the end (delta: 61.9 MB). Free memory was 88.6 MB in the beginning and 174.9 MB in the end (delta: -86.4 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 374.06 ms. Allocated memory is still 198.2 MB. Free memory was 174.9 MB in the beginning and 158.3 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4117.22 ms. Allocated memory was 198.2 MB in the beginning and 254.8 MB in the end (delta: 56.6 MB). Free memory was 158.3 MB in the beginning and 140.8 MB in the end (delta: 17.5 MB). Peak memory consumption was 74.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...